Last modified by Eric Nantel on 2024/11/21 09:43
From version < 94.1 >
edited by Coleman Benson
on 2019/02/01 12:00
To version < 98.3 >
edited by Coleman Benson
on 2019/02/05 13:03
< >
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -13,6 +13,8 @@
13 13  
14 14  A "session" is defined as the time between when the servo is powered ON to when it is powered OFF or reset.
15 15  
16 +Note that for a given session, the action related to a specific commands overrides the stored value in EEPROM.
17 +
16 16  == Action Commands ==
17 17  
18 18  Action commands tell the servo, within that session, to do something (i.e. "take an action"). The types of action commands which can be sent are described below, and they cannot be combined with other commands such as queries or configurations. Only one action command can be sent at a time. Action commands are session-specific, therefore once a servo is power cycled, it will not have any "memory" of previous actions or virtual positions (described below on this page). Action commands are sent serially to the servo's Rx pin and must be sent in the following format:
... ... @@ -45,20 +45,6 @@
45 45  This results in the servo with ID #5 rotating from the current angular position to a pulse position ("P") of 1456 in a time ("T") of 1263 milliseconds.
46 46  )))
47 47  
48 -== Configuration Commands ==
49 -
50 -Configuration commands and corresponding values affect a servo's defaults which are written to and read from the servo's EEPROM. These configurations are retained in memory after the servo is reset or power is cut / lost. Some configuration commands affect the session, while others do not (see each command for details). Not all action commands have a corresponding configuration and vice versa. More information about which configuration commands are retained when in RC mode can be found on the [[LSS - RC PWM page>>doc:Lynxmotion Smart Servo (LSS).LSS - RC PWM.WebHome]]. Configuration commands are not cumulative, in that if two configurations are sent, one after the next, only the last configuration is used and stored. The format to send a configuration command is identical to that of an action command:
51 -
52 -1. Start with a number sign # (U+0023)
53 -1. Servo ID number as an integer
54 -1. Configuration command (two to three letters, no spaces, capital or lower case)
55 -1. Configuration value in the correct units with no decimal
56 -1. End with a control / carriage return '<cr>'
57 -
58 -Ex: #5CO-50<cr>
59 -
60 -This configures an absolute origin offset ("CO") with respect to factory origin to servo with ID #5 and changes the offset for that session to -5.0 degrees (50 tenths of degrees). Once the servo is powered off and then powered on, zeroing the servo will cause it to move to -5.0 degrees with respect to the factory origin and report its position as 0 degrees. Configuration commands can be undone / reset either by sending the servo's default value for that configuration, or by doing a factory reset (clears all configurations) described below.
61 -
62 62  == Query Commands ==
63 63  
64 64  Query commands request information from the servo. They are received via the Rx pin of the servo, and the servo's reply is sent via the servo's Tx pin. Using separate lines for Tx and Rx is called "full duplex". Query commands are also similar to action and configuration commands and must use the following format:
... ... @@ -89,6 +89,20 @@
89 89  
90 90  This indicates that servo #5 is currently at 144.3 degrees (1443 tenths of degrees).
91 91  
80 +== Configuration Commands ==
81 +
82 +Configuration commands and corresponding values affect a servo's defaults which are written to and read from the servo's EEPROM. These configurations are retained in memory after the servo is reset or power is cut / lost. Some configuration commands affect the session, while others do not. In the Command table below, the column "Session" denotes if the configuration command affects the session.. Not all action commands have a corresponding configuration command and vice versa. More information about which configuration commands are retained when in RC mode can be found on the [[LSS - RC PWM page>>doc:Lynxmotion Smart Servo (LSS).LSS - RC PWM.WebHome]]. Configuration commands are not cumulative, in that if two configurations are sent, one after the next, only the last configuration is used and stored. The format to send a configuration command is identical to that of an action command:
83 +
84 +1. Start with a number sign # (U+0023)
85 +1. Servo ID number as an integer
86 +1. Configuration command (two to three letters, no spaces, capital or lower case)
87 +1. Configuration value in the correct units with no decimal
88 +1. End with a control / carriage return '<cr>'
89 +
90 +Ex: #5CO-50<cr>
91 +
92 +This configures an absolute origin offset ("CO") with respect to factory origin to servo with ID #5 and changes the offset for that session to -5.0 degrees (50 tenths of degrees). Once the servo is powered off and then powered on, zeroing the servo will cause it to move to -5.0 degrees with respect to the factory origin and report its position as 0 degrees. Configuration commands can be undone / reset either by sending the servo's default value for that configuration, or by doing a factory reset (clears all configurations) described below.
93 +
92 92  **Session vs Configuration Query**
93 93  
94 94  By default, the query command returns the sessions' value. Should no action commands have been sent to change the session value, it will return the value saved in EEPROM which will either be the servo's default, or modified with a configuration command. In order to query the value stored in EEPROM (configuration), add a '1' to the query command:
... ... @@ -126,72 +126,72 @@
126 126  
127 127  = Command List =
128 128  
129 -|= #|=Description|= Action|= Query|= Config|= RC|= Serial|= Units|=(% style="width: 510px;" %) Notes|=(% style="width: 113px;" %)Default Value
130 -| 1|[[**L**imp>>||anchor="H1.Limp28L29"]]| L| | | | ✓|none|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
131 -| 2|[[**H**alt & **H**old>>||anchor="H2.Halt26Hold28H29"]]| H| | | | ✓|none|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
132 -| 3|[[**T**imed move>>||anchor="H3.Timedmove28T29"]]| T| | | | ✓|milliseconds|(% style="width:510px" %) Modifier only for {P, D, MD}|(% style="text-align:center; width:113px" %)
133 -| 4|[[**S**peed>>||anchor="H4.Speed28S29"]]| S| | | | ✓|microseconds / second|(% style="width:510px" %) Modifier only {P}|(% style="text-align:center; width:113px" %)
134 -| 5|[[**M**ove in **D**egrees (relative)>>||anchor="H5.28Relative29MoveinDegrees28MD29"]]| MD| | | | ✓|tenths of degrees (ex 325 = 32.5 degrees)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
135 -| 6|[[**O**rigin Offset>>||anchor="H6.OriginOffsetAction28O29"]]| O| QO| CO| ✓| ✓|tenths of degrees (ex 91 = 9.1 degrees)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)(((
131 +|= #|=Description|= Action|= Query|= Config|=Session|= RC|= Serial|= Units|=(% style="width: 510px;" %) Notes|=(% style="width: 113px;" %)Default Value
132 +| 1|[[**L**imp>>||anchor="H1.Limp28L29"]]| L| | | | | ✓|none|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
133 +| 2|[[**H**alt & **H**old>>||anchor="H2.Halt26Hold28H29"]]| H| | | | | ✓|none|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
134 +| 3|[[**T**imed move>>||anchor="H3.Timedmove28T29"]]| T| | | | | ✓|milliseconds|(% style="width:510px" %) Modifier only for {P, D, MD}|(% style="text-align:center; width:113px" %)
135 +| 4|[[**S**peed>>||anchor="H4.Speed28S29"]]| S| | | | | ✓|microseconds per second|(% style="width:510px" %) Modifier only {P}|(% style="text-align:center; width:113px" %)
136 +| 5|[[**M**ove in **D**egrees (relative)>>||anchor="H5.28Relative29MoveinDegrees28MD29"]]| MD| | | | | ✓|tenths of degrees (ex 325 = 32.5 degrees)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
137 +| 6|[[**O**rigin Offset>>||anchor="H6.OriginOffsetAction28O29"]]| O| QO|CO|✓| ✓| ✓|tenths of degrees (ex 91 = 9.1 degrees)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)(((
136 136  0
137 137  )))
138 -| 7|[[**A**ngular **R**ange>>||anchor="H7.AngularRange28AR29"]]| AR| QAR| CAR| ✓| ✓|tenths of degrees |(% style="width:510px" %) |(% style="text-align:center; width:113px" %)(((
140 +| 7|[[**A**ngular **R**ange>>||anchor="H7.AngularRange28AR29"]]| AR| QAR| CAR|✓| ✓| ✓|tenths of degrees |(% style="width:510px" %) |(% style="text-align:center; width:113px" %)(((
139 139  1800
140 140  )))
141 -| 8|[[Position in **P**ulse>>||anchor="H8.PositioninPulse28P29"]]| P| QP| | | ✓|microseconds|(% style="width:510px" %)(((
143 +| 8|[[Position in **P**ulse>>||anchor="H8.PositioninPulse28P29"]]| P| QP| | | | ✓|microseconds|(% style="width:510px" %)(((
142 142  Inherited from SSC-32 serial protocol
143 143  )))|(% style="text-align:center; width:113px" %)
144 -| 9|[[Position in **D**egrees>>||anchor="H9.PositioninDegrees28D29"]]| D| QD| | | ✓|tenths of degrees |(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
145 -| 10|[[**W**heel mode in **D**egrees>>||anchor="H10.WheelModeinDegrees28WD29"]]| WD| QWD| | | ✓|tenths of degrees per second (ex 248 = 24.8 degrees per second)|(% style="width:510px" %)A.K.A. "Speed mode" or "Continuous rotation"|(% style="text-align:center; width:113px" %)
146 -| 11|[[**W**heel mode in **R**PM>>||anchor="H11.WheelModeinRPM28WR29"]]| WR| QWR| | | ✓| rpm|(% style="width:510px" %)A.K.A. "Speed mode" or "Continuous rotation"|(% style="text-align:center; width:113px" %)
147 -| 12|[[Max **S**peed in **D**egrees>>||anchor="H12.SpeedinDegrees28SD29"]]| SD| QSD|CSD| ✓| ✓|tenths of degrees per second |(% style="width:510px" %)(((
146 +| 9|[[Position in **D**egrees>>||anchor="H9.PositioninDegrees28D29"]]| D| QD| | | | ✓|tenths of degrees |(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
147 +| 10|[[**W**heel mode in **D**egrees>>||anchor="H10.WheelModeinDegrees28WD29"]]| WD| QWD| | | | ✓|tenths of degrees per second (ex 248 = 24.8 degrees per second)|(% style="width:510px" %)A.K.A. "Speed mode" or "Continuous rotation"|(% style="text-align:center; width:113px" %)
148 +| 11|[[**W**heel mode in **R**PM>>||anchor="H11.WheelModeinRPM28WR29"]]| WR| QWR| | | | ✓|revolutions per minute (rpm)|(% style="width:510px" %)A.K.A. "Speed mode" or "Continuous rotation"|(% style="text-align:center; width:113px" %)
149 +| 12|[[Max **S**peed in **D**egrees>>||anchor="H12.SpeedinDegrees28SD29"]]| SD| QSD|CSD|✓| ✓| ✓|tenths of degrees per second |(% style="width:510px" %)(((
148 148  QSD: Add modifier "2" for instantaneous speed.
149 149  
150 150  SD overwrites SR / CSD overwrites CSR and vice-versa.
151 151  )))|(% style="text-align:center; width:113px" %)Max per servo
152 -| 13|[[Max **S**peed in **R**PM>>||anchor="H13.SpeedinRPM28SR29"]]| SR| QSR|CSR| ✓| ✓|rpm|(% style="width:510px" %)(((
154 +| 13|[[Max **S**peed in **R**PM>>||anchor="H13.SpeedinRPM28SR29"]]| SR| QSR|CSR|✓| ✓| ✓|revolutions per minute (rpm)|(% style="width:510px" %)(((
153 153  QSR: Add modifier "2" for instantaneous speed
154 154  
155 155  SR overwrites SD / CSR overwrites CSD and vice-versa.
156 156  )))|(% style="text-align:center; width:113px" %)Max per servo
157 -| 16|[[**LED** Color>>||anchor="H16.RGBLED28LED29"]]| LED| QLED| CLED| ✓| ✓|none (integer from 0 to 8)|(% style="width:510px" %)0=Off (black); 1=Red 2=Green; 3=Blue; 4=Yellow; 5=Cyan; 6=Magenta; 7=White;|(% style="text-align:center; width:113px" %)7
158 -| 17|[[**ID** #>>||anchor="H17.IdentificationNumber"]]| | QID| CID| | ✓|none (integer from 0 to 250)|(% style="width:510px" %)Note: ID 254 is a "broadcast" which all servos respond to|(% style="text-align:center; width:113px" %)0
159 -| 18|[[**B**aud rate>>||anchor="H18.BaudRate"]]| B| QB| CB| | ✓|none (integer)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)9600
160 -| 19|[[**G**yre direction (**G**)>>||anchor="H19.GyreRotationDirection"]]| G| QG| CG| ✓| ✓|none |(% style="width:510px" %)Gyre / rotation direction where 1= CW (clockwise) -1 = CCW (counter-clockwise)|(% style="text-align:center; width:113px" %)1
161 -| 20|[[**F**irst Position (**P**ulse)>>||anchor="H20.First2InitialPosition28pulse29"]]| | QFP|CFP | ✓| ✓|none |(% style="width:510px" %)CFP overwrites CFD and vice-versa|(% style="text-align:center; width:113px" %)(((
159 +| 14|[[**LED** Color>>||anchor="H16.RGBLED28LED29"]]| LED| QLED| CLED|✓| ✓| ✓|none (integer from 0 to 8)|(% style="width:510px" %)0=Off (black); 1=Red 2=Green; 3=Blue; 4=Yellow; 5=Cyan; 6=Magenta; 7=White;|(% style="text-align:center; width:113px" %)7
160 +| 15|[[**G**yre direction (**G**)>>||anchor="H19.GyreRotationDirection"]]| G| QG| CG|✓| ✓| ✓|none |(% style="width:510px" %)Gyre / rotation direction: 1= CW (clockwise) -1 = CCW (counter-clockwise)|(% style="text-align:center; width:113px" %)1
161 +| 16|[[**ID** #>>||anchor="H17.IdentificationNumber"]]| | QID| CID| | | ✓|none (integer from 0 to 250)|(% style="width:510px" %)Note: ID 254 is a "broadcast" which all servos respond to. |(% style="text-align:center; width:113px" %)0
162 +| 17|[[**B**aud rate>>||anchor="H18.BaudRate"]]| | QB| CB| | | ✓|none (integer)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)9600
163 +| 18|[[**F**irst Position (**P**ulse)>>||anchor="H20.First2InitialPosition28pulse29"]]| | QFP|CFP |X| ✓| ✓|none |(% style="width:510px" %)CFP overwrites CFD and vice-versa|(% style="text-align:center; width:113px" %)(((
162 162  Limp
163 163  )))
164 -| 21|[[**F**irst Position (**D**egrees)>>||anchor="H21.First2InitialPosition28Degrees29"]]| | QFD|CFD| ✓| ✓|none |(% style="width:510px" %)CFD overwrites CFP and vice-versa|(% style="text-align:center; width:113px" %)Limp
165 -| 22|[[**T**arget (**D**egree) **P**osition>>||anchor="H22.QueryTargetPositioninDegrees28QDT29"]]| | QDT| | | ✓|tenths of degrees (ex 325 = 32.5 degrees; 91 = 9.1 degrees)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
166 -| 23|[[**M**odel **S**tring>>||anchor="H23.QueryModelString28QMS29"]]| | QMS| | | |none (string)|(% style="width:510px" %) Recommended to determine the model|(% style="text-align:center; width:113px" %)
167 -| 23b|[[**M**odel>>||anchor="H23b.QueryModel28QM29"]]| | QM| | | |none (integer)|(% style="width:510px" %) Returns a raw value representing the three model inputs (36 bit)|(% style="text-align:center; width:113px" %)
168 -| 24|[[Serial **N**umber>>||anchor="H24.QuerySerialNumber28QN29"]]| | QN| | | |none (integer)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
169 -| 25|[[**F**irmware version>>||anchor="H25.QueryFirmware28QF29"]]| | QF| | | |none (integer)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
170 -| 26|[[**Q**uery (general status)>>||anchor="H26.QueryStatus28Q29"]]| | Q| | | ✓|none (integer from 1 to 8)|(% style="width:510px" %) See command description for details|(% style="text-align:center; width:113px" %)
171 -| 27|[[**V**oltage>>||anchor="H27.QueryVoltage28QV29"]]| | QV| | | ✓|millivolts (ex 5936 = 5936mV = 5.936V)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
172 -| 28|[[**T**emperature>>||anchor="H28.QueryTemperature28QT29"]]| | QT| | | ✓|tenths of degrees Celsius|(% style="width:510px" %)Max temp before error: 85°C (servo goes limp)|(% style="text-align:center; width:113px" %)
173 -| 29|[[**C**urrent>>||anchor="H29.QueryCurrent28QC29"]]| | QC| | | ✓|milliamps (ex 200 = 0.2A)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
174 -| 30|[[**RC** Mode>>||anchor="H30.RCMode28CRC29"]]| | |CRC| |✓|none|(% style="width:510px" %)(((
175 -CRC: Add modifier "1" for RC-position mode.
176 -CRC: Add modifier "2" for RC-wheel mode.
177 -Any other value for the modifier results in staying in smart mode.
178 -Puts the servo into RC mode. To revert to smart mode, use the button menu.
166 +| 19|[[**F**irst Position (**D**eg)>>||anchor="H21.First2InitialPosition28Degrees29"]]| | QFD|CFD|X| ✓| ✓|none |(% style="width:510px" %)CFD overwrites CFP and vice-versa|(% style="text-align:center; width:113px" %)Limp
167 +| 20|[[**T**arget (**D**eg) **P**osition>>||anchor="H22.QueryTargetPositioninDegrees28QDT29"]]| | QDT| | | | ✓|tenths of degrees (ex 325 = 32.5 degrees)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
168 +| 21|[[**M**odel **S**tring>>||anchor="H23.QueryModelString28QMS29"]]| | QMS| | | | |none (string)|(% style="width:510px" %) Returns the type of servo (ST, HS, HT)|(% style="text-align:center; width:113px" %)
169 +| 22|[[Serial **N**umber>>||anchor="H24.QuerySerialNumber28QN29"]]| | QN| | | | |none (integer)|(% style="width:510px" %) Returns the unique serial number for that servo|(% style="text-align:center; width:113px" %)
170 +| 23|[[**F**irmware version>>||anchor="H25.QueryFirmware28QF29"]]| | QF| | | | |none (integer)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
171 +| 24|[[**Q**uery (gen. status)>>||anchor="H26.QueryStatus28Q29"]]| | Q| | | | ✓|none (integer from 1 to 8)|(% style="width:510px" %) See command description for details|(% style="text-align:center; width:113px" %)
172 +| 25|[[**V**oltage>>||anchor="H27.QueryVoltage28QV29"]]| | QV| | | | ✓|millivolts (ex 5936 = 5936mV = 5.936V)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
173 +| 26|[[**T**emperature>>||anchor="H28.QueryTemperature28QT29"]]| | QT| | | | ✓|tenths of degrees Celsius|(% style="width:510px" %)Max temp before error: 85°C (servo goes limp)|(% style="text-align:center; width:113px" %)
174 +| 27|[[**C**urrent>>||anchor="H29.QueryCurrent28QC29"]]| | QC| | | | ✓|milliamps (ex 200 = 0.2A)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
175 +| 28|[[**RC** Mode>>||anchor="H30.RCMode28CRC29"]] - Position| | |CRC1|✓| | ✓|none|(% style="width:510px" %)(((
176 +Change to RC position mode. To revert to smart mode, use the button menu.
179 179  )))|(% style="text-align:center; width:113px" %)Serial
180 -|31|[[**RESET**>>||anchor="H31.RESET"]]| | | | | ✓|none|(% style="width:510px" %)Soft reset. See command for details.|(% style="text-align:center; width:113px" %)
181 -|32|[[**DEFAULT**>>||anchor="H32.DEFAULTA026CONFIRM"]]| | | | |✓|none|(% style="width:510px" %)Revert to firmware default values. See command for details|(% style="text-align:center; width:113px" %)
182 -|33|[[**UPDATE**>>||anchor="H33.UPDATEA026CONFIRM"]]| | | | |✓|none|(% style="width:510px" %)Update firmware. See command for details.|(% style="text-align:center; width:113px" %)
178 +| 29|[[**RC** Mode>>||anchor="H30.RCMode28CRC29"]] - Wheel| | |CRC2|✓| | ✓| |(% style="width:510px" %)Change to RC wheel mode. To revert to smart mode, use the button menu.|(% style="text-align:center; width:113px" %)Serial
179 +| 30|[[**RESET**>>||anchor="H31.RESET"]]| | | | | | ✓|none|(% style="width:510px" %)Soft reset. See command for details.|(% style="text-align:center; width:113px" %)
180 +| 31|[[**DEFAULT**>>||anchor="H32.DEFAULTA026CONFIRM"]]| | | | | |✓|none|(% style="width:510px" %)Revert to firmware default values. See command for details|(% style="text-align:center; width:113px" %)
181 +| 32|[[**UPDATE**>>||anchor="H33.UPDATEA026CONFIRM"]]| | | | | |✓|none|(% style="width:510px" %)Update firmware. See command for details.|(% style="text-align:center; width:113px" %)
183 183  
184 184  == Advanced ==
185 185  
186 -|= #|=Description|= Action|= Query|= Config|= RC|= Serial|= Units|=(% style="width: 510px;" %) Notes|=(% style="width: 113px;" %)Default Value
187 -| 1|[[**A**ngular **S**tiffness>>||anchor="H14.AngularStiffness28AS29"]]| AS| QAS|CAS| ✓| ✓|none|(% style="width:510px" %)-4 to +4, but suggested values are between 0 to +4|(% style="text-align:center; width:113px" %)0
188 -| 2|[[**A**ngular **H**olding Stiffness>>||anchor="H15.AngularHoldStiffness28AH29"]]|AH|QAH|CAH| | ✓|none|(% style="width:510px" %)-10 to +10, with default as 0. |(% style="text-align:center; width:113px" %)1
189 -| 3|[[**A**ngular **A**cceleration>>||anchor="H15b:AngularAcceleration28AA29"]]|AA|QAA|CAA| | ✓|degrees per second squared|(% style="width:510px" %)Increments of 10 degrees per second squared|(% style="text-align:center; width:113px" %)
190 -| 4|[[**A**ngular **D**eceleration>>||anchor="H15c:AngularDeceleration28AD29"]]|AD|QAD|CAD| | ✓|degrees per second squared|(% style="width:510px" %)Increments of 10 degrees per second squared|(% style="text-align:center; width:113px" %)
191 -| 5|[[**E**nable **M**otion control>>||anchor="H15d:MotionControl28MC29"]]|EM|QEM| | | ✓|none|(% style="width:510px" %)EM0 to disable motion control, EM1 to enable. Session specific / does not survive power cycles|(% style="text-align:center; width:113px" %)
192 -| 6|[[**C**onfigure **L**ED **B**linking>>||anchor="H16b.ConfigureLEDBlinking28CLB29"]]| | | CLB| ✓| |none (integer from 0 to 63)|(% style="width:510px" %)0=No blinking, ; 63=Always blink; Blink while: 1=Limp; 2=Holding 4=Accel; 8=Decel; 16=Free 32=Travel;|(% style="text-align:center; width:113px" %)
193 -| | | | | | | | |(% style="width:510px" %) |(% style="text-align:center; width:113px" %)
185 +|= #|=Description|= Action|= Query|= Config|=Session|= RC|= Serial|= Units|=(% style="width: 510px;" %) Notes|=(% style="width: 113px;" %)Default Value
186 +| A1|[[**A**ngular **S**tiffness>>||anchor="H14.AngularStiffness28AS29"]]| AS|QAS|CAS|✓| ✓| ✓|none (integer -4 to +4)|(% style="width:510px" %)Suggested values are between 0 to +4|(% style="text-align:center; width:113px" %)0
187 +| A2|[[**A**ngular **H**olding Stiffness>>||anchor="H15.AngularHoldStiffness28AH29"]]|AH|QAH|CAH|✓| | ✓|none (integer -10 to +10)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)1
188 +| A3|[[**A**ngular **A**cceleration>>||anchor="H15b:AngularAcceleration28AA29"]]|AA|QAA|CAA|✓| | ✓|degrees per second squared|(% style="width:510px" %)Increments of 10 degrees per second squared|(% style="text-align:center; width:113px" %)
189 +| A4|[[**A**ngular **D**eceleration>>||anchor="H15c:AngularDeceleration28AD29"]]|AD|QAD|CAD|✓| | ✓|degrees per second squared|(% style="width:510px" %)Increments of 10 degrees per second squared|(% style="text-align:center; width:113px" %)
190 +| A5|[[**E**nable **M**otion Control>>||anchor="H15d:MotionControl28MC29"]]|EM|QEM| | | | ✓|none|(% style="width:510px" %)EM0 to disable motion control, EM1 to enable|(% style="text-align:center; width:113px" %)
191 +| A6|[[**C**onfigure **L**ED **B**linking>>||anchor="H16b.ConfigureLEDBlinking28CLB29"]]| | | CLB| | ✓| |none (integer from 0 to 63)|(% style="width:510px" %)(((
192 +0=No blinking, 63=Always blink;
194 194  
194 +Blink while: 1=Limp; 2=Holding 4=Accel; 8=Decel; 16=Free 32=Travel;
195 +)))|(% style="text-align:center; width:113px" %)
196 +
195 195  == Details ==
196 196  
197 197  ====== __1. Limp (**L**)__ ======
... ... @@ -204,17 +204,17 @@
204 204  
205 205  Example: #5H<cr>
206 206  
207 -This action overrides whatever the servo might be doing at the time the command is received (accelerating, moving continuously etc.) and causes it to stop immediately and hold that position.
209 +This action overrides whatever the servo might be doing at the time the command is received (accelerating, moving continuously etc.) and causes it to stop immediately and hold that angular position.
208 208  
209 -====== __3. Timed move (**T**)__ ======
211 +====== __3. Timed move (**T**) modifier__ ======
210 210  
211 211  Example: #5P1500T2500<cr>
212 212  
213 -Timed move can be used only as a modifier for a position (P) action. The units are in milliseconds, so a timed move of 2500 milliseconds would cause the servo to rotate from its current position to the desired position in 2.5 seconds. This command is in place to ensure backwards compatibility with the SSC-32 / 32U protocol.
215 +Timed move can be used only as a modifier for a position (P, D, MD) actions. The units are in milliseconds, so a timed move of 2500 milliseconds would cause the servo to rotate from its current position to the desired position in 2.5 seconds. The onboard controller will attempt to ensure that the move is performed entirely at the desired velocity, though differences in torque may cause it to not be exact. This command is in place to ensure backwards compatibility with the SSC-32 / 32U protocol.
214 214  
215 215  Note: If the calculated speed at which a servo must rotate for a timed move is greater than its maximum speed (which depends on voltage and load), then it will move at its maximum speed, and the time of the move may be longer than requested.
216 216  
217 -====== __4. Speed (**S**)__ ======
219 +====== __4. Speed (**S**) modifier__ ======
218 218  
219 219  Example: #5P1500S750<cr>
220 220  
... ... @@ -230,11 +230,11 @@
230 230  
231 231  Example: #5O2400<cr>
232 232  
233 -This command allows you to temporarily change the origin of the servo in relation to the factory zero position. The setting will be lost upon servo reset / power cycle. Origin offset commands are not cumulative and always relate to factory zero. Note that for a given session, the O command overrides the CO command. In the first image, the origin at factory offset '0' (centered).
235 +This command allows you to temporarily change the origin of the servo in relation to the factory zero position for that session. As with all action commands, the setting will be lost upon servo reset / power cycle. Origin offset commands are not cumulative and always relate to factory zero. In the first image, the origin at factory offset '0' (centered).
234 234  
235 235  [[image:LSS-servo-default.jpg]]
236 236  
237 -In the second image, the origina, as well as the angular range (explained below) have been shifted by 240.0 degrees:
239 +In the second image, the origin, and the corresponding angular range (explained below) have been shifted by +240.0 degrees:
238 238  
239 239  [[image:LSS-servo-origin.jpg]]
240 240  
... ... @@ -242,33 +242,33 @@
242 242  
243 243  Example: #5QO<cr> Returns: *5QO-13
244 244  
245 -This allows you to query the angle (in tenths of degrees) of the origin in relation to the factory zero position.
247 +This allows you to query the angle (in tenths of degrees) of the origin in relation to the factory zero position. In this example, the new origin is at -1.3 degrees from the factory zero.
246 246  
247 247  Configure Origin Offset (**CO**)
248 248  
249 249  Example: #5CO-24<cr>
250 250  
251 -This command allows you to change the origin of the servo in relation to the factory zero position in EEPROM. The setting will be saved upon servo reset / power cycle. Origin offset configuration commands are not cumulative and always relate to factory zero. The new origin is also used in RC mode.
253 +This command allows you to change the origin of the servo in relation to the factory zero position in EEPROM. The setting will be saved upon servo reset / power cycle. Origin offset configuration commands are not cumulative and always relate to factory zero. The new origin is also used in RC mode. In the example, the new origin will be at -2.4 degrees from the factory zero.
252 252  
253 253  ====== __7. Angular Range (**AR**)__ ======
254 254  
255 255  Example: #5AR1800<cr>
256 256  
257 -This command allows you to temporarily change the total angular range of the servo in tenths of degrees. This applies to the Position in Pulse (P) command and RC mode. The default for (P) and RC mode is 1800 (180.0 degrees total, or ±90.0 degrees). In the first image,
259 +This command allows you to temporarily change the total angular range of the servo in tenths of degrees. This applies to the Position in Pulse (P) command and RC mode. The default for (P) and RC mode is 1800 (180.0 degrees total, or ±90.0 degrees). The image below shows a standard -180.0 to +180.0 range, with no offset:
258 258  
259 259  [[image:LSS-servo-default.jpg]]
260 260  
261 -Here, the angular range has been restricted to 180.0 degrees, or -90.0 to +90.0. The center has remained unchanged.
263 +Below, the angular range is restricted to 180.0 degrees, or -90.0 to +90.0. The center has remained unchanged.
262 262  
263 263  [[image:LSS-servo-ar.jpg]]
264 264  
265 -The angular range action command (ex. #5AR1800<cr>) and origin offset action command (ex. #5O-1200<cr>) an be used to move both the center and limit the angular range:
267 +Finally, the angular range action command (ex. #5AR1800<cr>) and origin offset action command (ex. #5O-1200<cr>) are used to move both the center and limit the angular range:
266 266  
267 267  [[image:LSS-servo-ar-o-1.jpg]]
268 268  
269 269  Query Angular Range (**QAR**)
270 270  
271 -Example: #5QAR<cr> might return *5AR2756
273 +Example: #5QAR<cr> might return *5AR1800, indicating the total angular range is 180.0 degrees.
272 272  
273 273  Configure Angular Range (**CAR**)
274 274  
... ... @@ -325,22 +325,22 @@
325 325  
326 326  The servo replies with the angular speed in rpm. A negative sign would indicate the opposite direction (for factory default a negative value would be counter clockwise).
327 327  
328 -====== __12. Speed in Degrees (**SD**)__ ======
330 +====== __12. Max Speed in Degrees (**SD**)__ ======
329 329  
330 330  Ex: #5SD1800<cr>
331 331  
332 -This command sets the servo's maximum speed for action commands in tenths of degrees per second for that session. In the example above, the servo's maximum speed for that session would be set to 180.0 degrees per second. Therefore maximum speed for actions can be set "on the fly". The servo's maximum speed cannot be set higher than its physical limit at a given voltage. SD overrides CSD (described below) for that session. Upon reset or power cycle, the servo reverts to the value associated with CSD as described below. Note that SD and SR (described below) are effectively the same, but allow the user to specify the speed in either unit. The last command (either SR or SD) is what the servo uses for that session.
334 +This command sets the servo's maximum speed for motion commands in tenths of degrees per second for that session. In the example above, the servo's maximum speed for that session would be set to 180.0 degrees per second. The servo's maximum speed cannot be set higher than its physical limit at a given voltage. The SD action command overrides CSD (described below) for that session. Upon reset or power cycle, the servo reverts to the value associated with CSD as described below. Note that SD and SR (described below) are effectively the same, but allow the user to specify the speed in either unit. The last command (either SR or SD) received is what the servo uses for that session.
333 333  
334 334  Query Speed in Degrees (**QSD**)
335 335  
336 336  Ex: #5QSD<cr> might return *5QSD1800<cr>
337 337  
338 -By default QSD will return the current session value, which is set to the value of CSD as reset/power cycle and changed whenever a SD/SR command is processed.
340 +By default QSD will return the current session value, which is set to the value of CSD as reset/power cycle and changed whenever an SD/SR command is processed.
339 339  If #5QSD1<cr> is sent, the configured maximum speed (CSD value) will be returned instead. You can also query the current speed using "2" and the current target travel speed using "3". See the table below for an example:
340 340  
341 341  |**Command sent**|**Returned value (1/10 °)**
342 342  |ex: #5QSD<cr>|Session value for maximum speed (set by latest SD/SR command)
343 -|ex: #5QSD1<cr>|Configured maximum speed  (set by CSD/CSR)
345 +|ex: #5QSD1<cr>|Configured maximum speed in EEPROM (set by CSD/CSR)
344 344  |ex: #5QSD2<cr>|Instantaneous speed (same as QWD)
345 345  |ex: #5QSD3<cr>|Target travel speed
346 346  
... ... @@ -350,22 +350,22 @@
350 350  
351 351  Using the CSD command sets the servo's maximum speed which is saved in EEPROM. In the example above, the servo's maximum speed will be set to 180.0 degrees per second. When the servo is powered on (or after a reset), the CSD value is used. Note that CSD and CSR (described below) are effectively the same, but allow the user to specify the speed in either unit. The last command (either CSR or CSD) is what the servo uses for that session.
352 352  
353 -====== __13. Speed in RPM (**SR**)__ ======
355 +====== __13. Max Speed in RPM (**SR**)__ ======
354 354  
355 355  Ex: #5SD45<cr>
356 356  
357 -This command sets the servo's maximum speed for action commands in rpm for that session. In the example above, the servo's maximum speed for that session would be set to 45rpm. Therefore maximum speed for actions can be set "on the fly". The servo's maximum speed cannot be set higher than its physical limit at a given voltage. SD overrides CSD (described below) for that session. Upon reset or power cycle, the servo reverts to the value associated with CSD as described below. Note that SD (described above) and SR are effectively the same, but allow the user to specify the speed in either unit. The last command (either SR or SD) is what the servo uses for that session.
359 +This command sets the servo's maximum speed for motion commands in rpm for that session. In the example above, the servo's maximum speed for that session would be set to 45rpm. The servo's maximum speed cannot be set higher than its physical limit at a given voltage. SD overrides CSD (described below) for that session. Upon reset or power cycle, the servo reverts to the value associated with CSD as described below. Note that SD (described above) and SR are effectively the same, but allow the user to specify the speed in either unit. The last command (either SR or SD) received is what the servo uses for that session.
358 358  
359 359  Query Speed in Degrees (**QSR**)
360 360  
361 361  Ex: #5QSR<cr> might return *5QSR45<cr>
362 362  
363 -By default QSR will return the current session value, which is set to the value of CSR as reset/power cycle and changed whenever a SD/SR command is processed.
365 +By default QSR will return the current session value, which is set to the value of CSR as reset/power cycle and changed whenever an SD/SR command is processed.
364 364  If #5QSR1<cr> is sent, the configured maximum speed (CSR value) will be returned instead. You can also query the current speed using "2" and the current target travel speed using "3". See the table below for an example:
365 365  
366 366  |**Command sent**|**Returned value (1/10 °)**
367 367  |ex: #5QSR<cr>|Session value for maximum speed (set by latest SD/SR command)
368 -|ex: #5QSR1<cr>|Configured maximum speed  (set by CSD/CSR)
370 +|ex: #5QSR1<cr>|Configured maximum speed in EEPROM (set by CSD/CSR)
369 369  |ex: #5QSR2<cr>|Instantaneous speed (same as QWR)
370 370  |ex: #5QSR3<cr>|Target travel speed
371 371  
... ... @@ -373,70 +373,10 @@
373 373  
374 374  Ex: #5CSR45<cr>
375 375  
376 -Using the CSR command sets the servo's maximum speed which is saved in EEPROM. In the example above, the servo's maximum speed will be set to 45rpm. When the servo is powered on (or after a reset), the CSR value is used. Note that CSD and CSR are effectively the same, but allow the user to specify the speed in either unit. The last command (either CSR or CSD) is what the servo uses for that session.
378 +Using the CSR command sets the servo's maximum speed which is saved in EEPROM. In the example above, the servo's maximum speed will be set to 45rpm. When the servo is powered on (or after a reset), the CSR value is used. Note that CSD and CSR are effectively the same, but allow the user to specify the speed in either unit. The last command (either CSR or CSD) received is what the servo uses for that session.
377 377  
378 -====== __14. Angular Stiffness (**AS**)__ ======
380 +====== __14. LED Color (**LED**)__ ======
379 379  
380 -The servo's rigidity / angular stiffness can be thought of as (though not identical to) a damped spring in which the value affects the stiffness and embodies how much, and how quickly the servo tried keep the requested position against changes.
381 -
382 -A positive value of "angular stiffness":
383 -
384 -* The more torque will be applied to try to keep the desired position against external input / changes
385 -* The faster the motor will reach its intended travel speed and the motor will decelerate faster and nearer to its target position
386 -
387 -A negative value on the other hand:
388 -
389 -* Causes a slower acceleration to the travel speed, and a slower deceleration
390 -* Allows the target position to deviate more from its position before additional torque is applied to bring it back
391 -
392 -The default value is zero and the effect becomes extreme by -4, +4. There are no units, only integers between -4 to 4. Greater values produce increasingly erratic behavior.
393 -
394 -Ex: #5AS-2<cr>
395 -
396 -This reduces the angular stiffness to -2 for that session, allowing the servo to deviate more around the desired position. This can be beneficial in many situations such as impacts (legged robots) where more of a "spring" effect is desired. Upon reset, the servo will use the value stored in memory, based on the last configuration command.
397 -
398 -Ex: #5QAS<cr>
399 -
400 -Queries the value being used.
401 -
402 -Ex: #5CAS<cr>
403 -
404 -Writes the desired angular stiffness value to memory.
405 -
406 -====== __15. Angular Hold Stiffness (**AH**)__ ======
407 -
408 -The angular holding stiffness determines the servo's ability to hold a desired position under load. Values can be from -10 to 10, with the default being 0. Note that negative values mean the final position can be easily deflected.
409 -
410 -Ex: #5AH3<cr>
411 -
412 -This sets the holding stiffness for servo #5 to 3 for that session.
413 -
414 -Query Angular Hold Stiffness (**QAH**)
415 -
416 -Ex: #5QAH<cr> might return *5QAH3<cr>
417 -
418 -This returns the servo's angular holding stiffness value.
419 -
420 -Configure Angular Hold Stiffness (**CAH**)
421 -
422 -Ex: #5CAH2<cr>
423 -
424 -This writes the angular holding stiffness of servo #5 to 2 to EEPROM
425 -
426 -====== __15b: Angular Acceleration (**AA**)__ ======
427 -
428 -{More details to come}
429 -
430 -====== __15c: Angular Deceleration (**AD**)__ ======
431 -
432 -{More details to come}
433 -
434 -====== __15d: Motion Control (**EM**)__ ======
435 -
436 -{More details to come}
437 -
438 -====== __16. RGB LED (**LED**)__ ======
439 -
440 440  Ex: #5LED3<cr>
441 441  
442 442  This action sets the servo's RGB LED color for that session.The LED can be used for aesthetics, or (based on user code) to provide visual status updates. Using timing can create patterns.
... ... @@ -451,63 +451,50 @@
451 451  
452 452  Configure LED Color (**CLED**)
453 453  
454 -Configuring the LED color via the CLED command sets the startup color of the servo after a reset or power cycle. Note that it also changes the session's LED color immediately as well.
396 +Configuring the LED color via the CLED command sets the startup color of the servo after a reset or power cycle. Note that it also changes the session's LED color immediately as well.
455 455  
456 -====== __16b. Configure LED Blinking (**CLB**)__ ======
398 +====== __15. Identification Number (**ID** #)__ ======
457 457  
458 -This command allows you to control when the RGB LED will blink the user set color (see [[16. RGB LED>>||anchor="H16.RGBLED28LED29"]] for details).
459 -You can turn on or off blinking for various LSS status. Here is the list and their associated value: 0=No blinking, ; 63=Always blink; Blink while: 1=Limp; 2=Holding 4=Accel; 8=Decel; 16=Free 32=Travel;
400 +A servo's identification number cannot be set "on the fly" and must be configured via the CID command described below. The factory default ID number for all servos is 0. Since smart servos are intended to be daisy chained, in order to respond differently from one another, the user must set different identification numbers. Servos with the same ID and baud rate will all receive and react to the same commands (assuming same baud rate).
460 460  
461 -To set blinking, use CLB with the value of your choosing. To activate blinking in multiple status, simply add together the values of the corresponding status. See examples below:
462 -
463 -Ex: #5CLB0<cr> to turn off all blinking (LED always solid)
464 -Ex: #5CLB1<cr> only blink when limp
465 -Ex: #5CLB2<cr> only blink when holding
466 -Ex: #5CLB12<cr> only blink when accel or decel
467 -Ex: #5CLB48<cr> only blink when free or travel
468 -Ex: #5CLB63<cr> blink in all status
469 -
470 -====== __17. Identification Number__ ======
471 -
472 -A servo's identification number cannot be set "on the fly" and must be configured via the CID command described below. The factory default ID number for all servos is 0. Since smart servos are intended to be daisy chained, in order to respond differently from one another, the user must set different identification numbers. Servos with the same ID and baud rate will all receive and react to the same commands.
473 -
474 474  Query Identification (**QID**)
475 475  
476 476  EX: #254QID<cr> might return *QID5<cr>
477 477  
478 -When using the query ID command, it is best to only have one servo connected and thus receive only one reply using the broadcast command (ID 254). Alternatively, pushing the button upon startup and temporarily setting the servo ID to 255 will still result in the servo responding with its "real" ID.
406 +When using the query ID command, it is best to only have one servo connected and thus receive only one reply. This is useful when you are not sure of the servo's ID, but don't want to change it. Using the broadcast command (ID 254) with only one servo will have that servo reply with its ID number (assuming the query is sent . Alternatively, pushing the button upon startup and temporarily setting the servo ID to 255 will still result in the servo responding with its "real" ID.
479 479  
480 480  Configure ID (**CID**)
481 481  
482 482  Ex: #4CID5<cr>
483 483  
484 -Setting a servo's ID in EEPROM is done via the CID command. All servos connected to the same serial bus will be assigned that ID. In most situations each servo must be set a unique ID, which means each servo must be connected individually to the serial bus and receive a unique CID number. It is best to do this before the servos are added to an assembly. Numbered stickers are provided to distinguish each servo after their ID is set, though you are free to use whatever alternative method you like.
412 +Setting a servo's ID in EEPROM is done via the CID command. All servos connected to the same serial bus will be assigned that ID. In most situations each servo must be set a unique ID, which means each servo must be connected individually to the serial bus and receive a unique CID number. It is best to do this before the servos are added to an assembly. Numbered stickers are provided to distinguish each servo after their ID is set, though you are free to use whatever alternative method you like. The servo must be RESET or power cycled in order for the new ID to take effect.
485 485  
486 -====== __18. Baud Rate__ ======
414 +====== __16. Baud Rate (B)__ ======
487 487  
488 -A servo's baud rate cannot be set "on the fly" and must be configured via the CB command described below. The factory default baud rate for all servos is 9600. Since smart servos are intended to be daisy chained, in order to respond to the same serial bus, all servos in that project should ideally be set to the same baud rate. Setting different baud rates will have the servos respond differently and may create issues. Available baud rates are: 9.6 kbps, 19.2 kbps, 38.4 kbps, 57.6 kbps, 115.2 kbps, 230.4 kbps, 250.0 kbps, 460.8 kbps, 500.0 kbps, 750.0 kbps*, 921.6 kbps*. Servos are shipped with a baud rate set to 9600. The baud rates are currently restricted to those above.
489 -\*: Current tests reveal baud rates above 500 kbps are unstable and can cause timeouts. Please keep this in mind if using those / testing them out.
416 +A servo's baud rate cannot be set "on the fly" and must be configured via the CB command described below. The factory default baud rate for all servos is 9600. Since smart servos are intended to be daisy chained, in order to respond to the same serial bus, all servos in a project should ideally be set to the same baud rate. Setting different baud rates will have the servos respond differently and may create issues. Available baud rates are: 9600 bps, 19200 bps, 38400 bps, 57600 bps, 115.2 kbps, 230.4 kbps, 250.0 kbps, 460.8 kbps, 500.0 kbps. Servos are shipped with a baud rate set to 9600. The baud rates are currently restricted to those above.
490 490  
491 491  Query Baud Rate (**QB**)
492 492  
493 493  Ex: #5QB<cr> might return *5QB9600<cr>
494 494  
495 -Querying the baud rate is used simply to confirm the CB configuration command before the servo is power cycled.
422 +Since the command to query the baud rate must be done at the servo's existing baud rate, it can simply be used to confirm the CB configuration command was correctly received before the servo is power cycled and the new baud rate takes effect.
496 496  
497 497  Configure Baud Rate (**CB**)
498 498  
499 -Important Note: the servo's current session retains the given baud rate and the new baud rate will only be in place when the servo is power cycled.
426 +Important Note: the servo's current session retains the given baud rate and the new baud rate will only take effect when the servo is power cycled / RESET.
500 500  
501 501  Ex: #5CB9600<cr>
502 502  
503 503  Sending this command will change the baud rate associated with servo ID 5 to 9600 bits per second.
504 504  
505 -====== __19. Gyre Rotation Direction__ ======
432 +====== __17. Gyre Rotation Direction (**G**)__ ======
506 506  
507 507  "Gyre" is defined as a circular course or motion. The effect of changing the gyre direction is as if you were to use a mirror image of a circle. CW = 1; CCW = -1. The factory default is clockwise (CW).
508 508  
509 -{images showing before and after with AR and Origin offset}
436 +Ex: #5G-1<cr>
510 510  
438 +This command will cause servo #5's positions to be inverted, effectively causing the servo to rotate in the opposite direction given the same command. For example in a 2WD robot, servos are often physically installed back to back, therefore setting one of the servos to a negative gyration, the same wheel command (ex WR30) to both servos will cause the robot to move forward or backward rather than rotate.
439 +
511 511  Query Gyre Direction (**QG**)
512 512  
513 513  Ex: #5QG<cr> might return *5QG-1<cr>
... ... @@ -520,9 +520,9 @@
520 520  
521 521  This changes the gyre direction as described above and also writes to EEPROM.
522 522  
523 -====== __20. First / Initial Position (pulse)__ ======
452 +====== __18. First Position (Pulse) (**FP**)__ ======
524 524  
525 -In certain cases, a user might want to have the servo move to a specific angle upon power up. We refer to this as "first position". The factory default has no first position value stored in EEPROM and therefore upon power up, the servo remains limp until a position (or hold command) is assigned. FP and FD are different in that FP is used for RC mode only, whereas FD is used for smart mode only.
454 +In certain cases, a user might want to have the servo move to a specific angle upon power up; we refer to this as "first position" (a.k.a. "initial position"). The factory default has no first position value stored in EEPROM and therefore upon power up, the servo remains limp until a position (or hold command) is assigned. FP and FD are different in that FP is used for RC mode only, whereas FD is used for smart mode only.
526 526  
527 527  Query First Position in Pulses (**QFP**)
528 528  
... ... @@ -534,11 +534,11 @@
534 534  
535 535  Ex: #5CP1550<cr>
536 536  
537 -This configuration command means the servo, when set to RC mode, will immediately move to an angle equivalent to having received an RC pulse of 1550 microseconds upon power up. Sending a CFP command without a number results in the servo remaining limp upon power up (i.e. disabled).
466 +This configuration command means the servo, when set to RC mode, will immediately move to an angle equivalent to having received an RC pulse of 1550 microseconds upon power up. Sending a CFP command without a number results in the servo remaining limp upon power up (i.e. disabled).
538 538  
539 -====== __21. First / Initial Position (Degrees)__ ======
468 +====== __19. First / Initial Position (Degrees) (**FD**)__ ======
540 540  
541 -In certain cases, a user might want to have the servo move to a specific angle upon power up. We refer to this as "first position". The factory default has no first position value stored in EEPROM and therefore upon power up, the servo remains limp until a position (or hold command) is assigned. FP and FD are different in that FP is used for RC mode only, whereas FD is used for smart mode only.
470 +In certain cases, a user might want to have the servo move to a specific angle upon power up; we refer to this as "first position" (a.k.a. "initial position"). The factory default has no first position value stored in EEPROM and therefore upon power up, the servo remains limp until a position (or hold command) is assigned. FP and FD are different in that FP is used for RC mode only, whereas FD is used for smart mode only.
542 542  
543 543  Query First Position in Degrees (**QFD**)
544 544  
... ... @@ -658,3 +658,77 @@
658 658  Since it it not common to have to update firmware, a confirmation command is needed after an UPDATE command is sent. Should any command other than CONFIRM be received by the servo after the firmware command has been received, it will leave the firmware action.
659 659  
660 660  Note that after the CONFIRM command is sent, the servo will automatically perform a RESET.
590 +
591 +====== __A1. Angular Stiffness (**AS**)__ ======
592 +
593 +The servo's rigidity / angular stiffness can be thought of as (though not identical to) a damped spring in which the value affects the stiffness and embodies how much, and how quickly the servo tried keep the requested position against changes.
594 +
595 +A positive value of "angular stiffness":
596 +
597 +* The more torque will be applied to try to keep the desired position against external input / changes
598 +* The faster the motor will reach its intended travel speed and the motor will decelerate faster and nearer to its target position
599 +
600 +A negative value on the other hand:
601 +
602 +* Causes a slower acceleration to the travel speed, and a slower deceleration
603 +* Allows the target position to deviate more from its position before additional torque is applied to bring it back
604 +
605 +The default value is zero and the effect becomes extreme by -4, +4. There are no units, only integers between -4 to 4. Greater values produce increasingly erratic behavior.
606 +
607 +Ex: #5AS-2<cr>
608 +
609 +This reduces the angular stiffness to -2 for that session, allowing the servo to deviate more around the desired position. This can be beneficial in many situations such as impacts (legged robots) where more of a "spring" effect is desired. Upon reset, the servo will use the value stored in memory, based on the last configuration command.
610 +
611 +Ex: #5QAS<cr>
612 +
613 +Queries the value being used.
614 +
615 +Ex: #5CAS<cr>
616 +
617 +Writes the desired angular stiffness value to memory.
618 +
619 +====== __A2. Angular Holding Stiffness (**AH**)__ ======
620 +
621 +The angular holding stiffness determines the servo's ability to hold a desired position under load. Values can be from -10 to 10, with the default being 0. Note that negative values mean the final position can be easily deflected.
622 +
623 +Ex: #5AH3<cr>
624 +
625 +This sets the holding stiffness for servo #5 to 3 for that session.
626 +
627 +Query Angular Hold Stiffness (**QAH**)
628 +
629 +Ex: #5QAH<cr> might return *5QAH3<cr>
630 +
631 +This returns the servo's angular holding stiffness value.
632 +
633 +Configure Angular Hold Stiffness (**CAH**)
634 +
635 +Ex: #5CAH2<cr>
636 +
637 +This writes the angular holding stiffness of servo #5 to 2 to EEPROM
638 +
639 +====== __A3: Angular Acceleration (**AA**)__ ======
640 +
641 +{More details to come}
642 +
643 +====== __A4: Angular Deceleration (**AD**)__ ======
644 +
645 +{More details to come}
646 +
647 +====== __A5: Motion Control (**EM**)__ ======
648 +
649 +{More details to come}
650 +
651 +====== __A6. Configure LED Blinking (**CLB**)__ ======
652 +
653 +This command allows you to control when the RGB LED will blink the user set color (see [[16. RGB LED>>||anchor="H16.RGBLED28LED29"]] for details).
654 +You can turn on or off blinking for various LSS status. Here is the list and their associated value: 0=No blinking, ; 63=Always blink; Blink while: 1=Limp; 2=Holding 4=Accel; 8=Decel; 16=Free 32=Travel;
655 +
656 +To set blinking, use CLB with the value of your choosing. To activate blinking in multiple status, simply add together the values of the corresponding status. See examples below:
657 +
658 +Ex: #5CLB0<cr> to turn off all blinking (LED always solid)
659 +Ex: #5CLB1<cr> only blink when limp
660 +Ex: #5CLB2<cr> only blink when holding
661 +Ex: #5CLB12<cr> only blink when accel or decel
662 +Ex: #5CLB48<cr> only blink when free or travel
663 +Ex: #5CLB63<cr> blink in all status

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