Last modified by Eric Nantel on 2024/09/06 14:52
From version < 22.1 >
edited by Coleman Benson
on 2023/07/18 09:47
To version < 25.1 >
edited by Coleman Benson
on 2023/07/18 10:08
< >
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14 14  
15 15  = Action Commands =
16 16  
17 -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>>||anchor="HVirtualAngularPosition"]] (described below). Action commands are sent serially to the servo's Rx pin and must be sent in the following format:
17 +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>>||anchor="HVirtualAngularPosition"]] (described below). Action commands are sent serially to the servo and must be sent in the following format:
18 18  
19 19  1. Start with a number sign **#** (Unicode Character: U+0023)
20 20  1. Servo ID number as an integer (assigning an ID described below)
... ... @@ -29,7 +29,7 @@
29 29  
30 30  == Modifiers ==
31 31  
32 -{{html clean="false" wiki="true" __cke_selected_macro="true"}}
32 +{{html clean="false" wiki="true"}}
33 33  <div class="cmdcnt"><div class="cmdpad"></div><div class="cmdtxt">
34 34  Modifiers can only be used with certain **action commands**. The format to include a modifier is:<div class="wikimodel-emptyline"></div>
35 35  
... ... @@ -46,8 +46,9 @@
46 46  This results in the servo with ID #5 rotating to a position (1800 in tenths of degrees) of 130.00 degrees in a time ("T") of 1500 milliseconds (1.5 seconds).<div class="wikimodel-emptyline"></div>
47 47  <div class="wikimodel-emptyline"></div></div></div>
48 48  
49 +<h2>Queries</h2>
49 49  <div class="cmdcnt"><div class="cmdpad"></div><div class="cmdtxt">
50 -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:<div class="wikimodel-emptyline"></div>
51 +Query commands request information from the servo. Query commands are also similar to action and configuration commands and must use the following format:<div class="wikimodel-emptyline"></div>
51 51  
52 52  1. Start with a number sign **#** (Unicode Character: U+0023)
53 53  1. Servo ID number as an integer
... ... @@ -71,10 +71,12 @@
71 71  This indicates that servo #5 is currently at 130.00 degrees (13000 tenths of degrees).
72 72  <div class="wikimodel-emptyline"></div></div></div>
73 73  
75 +<h2>Configurations</h2>
76 +
74 74  <div class="cmdcnt"><div class="cmdpad"></div><div class="cmdtxt">
75 75  Configuration commands and corresponding values affect a servo's defaults which are written to and read from the servo's EEPROM.<div class="wikimodel-emptyline"></div>
76 76  
77 -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-radio-control-pwm.WebHome]]. Configuration commands are not cumulative. This means that if two of the same configuration commands are sent, one after the next, only the last configuration is used and stored.<div class="wikimodel-emptyline"></div>
80 +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. Configuration commands are not cumulative; this means that if two of the same configuration commands are sent, one after the next, only the last configuration is used and stored.<div class="wikimodel-emptyline"></div>
78 78  
79 79  The format to send a configuration command is identical to that of an action command:<div class="wikimodel-emptyline"></div>
80 80  
... ... @@ -84,43 +84,43 @@
84 84  1. Configuration value in the correct units with no decimal
85 85  1. End with a carriage return **&#92;r** or **&lt;cr&gt;** Unicode Character (U+000D)<div class="wikimodel-emptyline"></div>
86 86  
87 -Ex: #5CO-50&lt;cr&gt;<div class="wikimodel-emptyline"></div>
90 +Ex: #5CO-500&lt;cr&gt;<div class="wikimodel-emptyline"></div>
88 88  
89 -This configures an absolute origin offset ("CO") with respect to factory origin of 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 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 that clears all configurations (through the button menu or with DEFAULT command described below).<div class="wikimodel-emptyline"></div>
92 +This configures an absolute origin offset ("CO") with respect to factory origin of servo with ID #5 and changes the offset for that session to -5.00 degrees (500 hundredths of degrees). Once the servo is powered off and on, zeroing the servo will cause it to move to -5.00 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 that clears all configurations (through the button menu or with DEFAULT command described below).<div class="wikimodel-emptyline"></div>
90 90  
91 91  **Session vs Configuration Query**<div class="wikimodel-emptyline"></div>
92 92  
93 93  By default, the query command returns the session's 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:<div class="wikimodel-emptyline"></div>
94 94  
95 -Ex: #5CSR20&lt;cr&gt; immediately sets the maximum speed for servo #5 to 20rpm (explained below) and changes the value in memory.<div class="wikimodel-emptyline"></div>
98 +Ex: #5CSR10&lt;cr&gt; immediately sets the maximum speed for servo #5 to 10rpm (explained below) and changes the value in memory.<div class="wikimodel-emptyline"></div>
96 96  
97 97  After RESET, a command of #5SR4&lt;cr&gt; sets the session's speed to 4rpm, but does not change the configuration value in memory. Therefore:<div class="wikimodel-emptyline"></div>
98 98  
99 99  #5QSR&lt;cr&gt; or #5QSR0&lt;cr&gt; would return *5QSR4&lt;cr&gt; which represents the value for that session, whereas<div class="wikimodel-emptyline"></div>
100 100  
101 -#5QSR1&lt;cr&gt; would return *5QSR20&lt;cr&gt; which represents the value in EEPROM
104 +#5QSR1&lt;cr&gt; would return *5QSR10&lt;cr&gt; which represents the value in EEPROM
102 102  <div class="wikimodel-emptyline"></div></div></div>
103 103  
104 104  <div class="cmdcnt"><div class="cmdpad"></div><div class="cmdtxt">
105 -The ability to store a "virtual angular position" is a feature which allows for rotation beyond 360 degrees, permitting multiple rotations of the output horn, moving the center position and more. The "absolute position" would be the angle of the output shaft with respect to a 360.0 degree circle and can be obtained by taking the modulus (with respect to 360 degrees) of the value. For example if the virtual position is reported as 15335 (or 1533.5 degrees), taking the modulus would give 93.5 degrees (3600 * 4 + 935 = 15335) as the absolute position (assuming no origin offset).<div class="wikimodel-emptyline"></div>
108 +The ability to store a "virtual angular position" is a feature which allows for rotation beyond 360 degrees, permitting multiple rotations of the output horn, moving the center position and more. The "absolute position" would be the angle of the output shaft with respect to a 360.00 degree circle and can be obtained by taking the modulus (with respect to 360 degrees) of the value. For example if the virtual position is reported as 153350 (or 1533.50 degrees), taking the modulus would give 93.5 degrees (36000 * 4 + 9350 = 153350) as the absolute position (assuming no origin offset).<div class="wikimodel-emptyline"></div>
106 106  
107 107  [[image:LSS-servo-positions.jpg]]<div class="wikimodel-emptyline"></div>
108 108  
109 109  In this example, the gyre direction (explained below, a.k.a. "rotation direction") is positive (clockwise), and origin offset has not been modified. Each square represents 30 degrees. The following command is sent:<div class="wikimodel-emptyline"></div>
110 110  
111 -#1D-300&lt;cr&gt; This causes the servo to move to -30.0 degrees (green arrow)<div class="wikimodel-emptyline"></div>
114 +#1D-3000&lt;cr&gt; This causes the servo to move to -30.00 degrees (green arrow)<div class="wikimodel-emptyline"></div>
112 112  
113 -#1D2100&lt;cr&gt; This second position command is sent to the servo, which moves it to 210.0 degrees (orange arrow)<div class="wikimodel-emptyline"></div>
116 +#1D21000&lt;cr&gt; This second position command is sent to the servo, which moves it to 210.00 degrees (orange arrow)<div class="wikimodel-emptyline"></div>
114 114  
115 -#1D-4200&lt;cr&gt; This next command rotates the servo counterclockwise to a position of -420 degrees (red arrow), which means one full rotation of 360 degrees plus 60.0 degrees (420.0 - 360.0), with a virtual position of -420.0 degrees.<div class="wikimodel-emptyline"></div>
118 +#1D-42000&lt;cr&gt; This next command rotates the servo counterclockwise to a position of -420.00 degrees (red arrow), which means one full rotation of 360 degrees plus 60.00 degrees (420.00 - 360.00), with a virtual position of -420.0 degrees.<div class="wikimodel-emptyline"></div>
116 116  
117 -Although the final physical position would be the same as if the servo were commanded to move to -60.0 degrees, the servo is in fact at -420.0 degrees.<div class="wikimodel-emptyline"></div>
120 +Although the final physical position would be the same as if the servo were commanded to move to -60.00 degrees, the servo is in fact at -420.00 degrees.<div class="wikimodel-emptyline"></div>
118 118  
119 -#1D4800&lt;cr&gt; This new command is sent which would then cause the servo to rotate from -420.0 degrees to 480.0 degrees (blue arrow), which would be a total of 900 degrees of clockwise rotation, or 2.5 complete rotations.<div class="wikimodel-emptyline"></div>
122 +#1D48000&lt;cr&gt; This new command is sent which would then cause the servo to rotate from -420.00 degrees to 480.00 degrees (blue arrow), which would be a total of 900 degrees of clockwise rotation, or 2.5 complete rotations.<div class="wikimodel-emptyline"></div>
120 120  
121 -#1D3300&lt;cr&gt; would cause the servo to rotate from 480.0 degrees to 330.0 degrees (yellow arrow).<div class="wikimodel-emptyline"></div>
124 +#1D33000&lt;cr&gt; would cause the servo to rotate from 480.0 degrees to 330.00 degrees (yellow arrow).<div class="wikimodel-emptyline"></div>
122 122  
123 -If the servo loses power or is power cycled, it also loses the virtual position associated with that session. For example, if the virtual position was 480.0 degrees before power is cycled, upon power up the servo's position will be read as +120.0 degrees from zero (assuming center position has not been modified). The virtual position range at power-up is [-180.0°, 180.0°].
126 +If the servo loses power or is power cycled, it also loses the virtual position associated with that session. For example, if the virtual position was 480.00 degrees before power is cycled, upon power up the servo's position will be read as +120.00 degrees from zero (assuming center position has not been modified). The virtual position range at power-up is [-180.00°, 180.00°].
124 124  <div class="wikimodel-emptyline"></div></div></div>
125 125  
126 126  {{/html}}
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