Last modified by Eric Nantel on 2025/06/06 07:47
From version < 117.1 >
edited by Brahim Daouas
on 2019/03/20 14:29
To version < 112.1 >
edited by Coleman Benson
on 2019/02/22 14:59
< >
Change comment: There is no comment for this version

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1 -LynxmotionSmartServo.WebHome
1 +Lynxmotion Smart Servo (LSS).WebHome
Author
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1 -xwiki:XWiki.BDaouas
1 +xwiki:XWiki.CBenson
Content
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79 79  
80 80  == Configuration Commands ==
81 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:LynxmotionSmartServo.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:
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 83  
84 84  1. Start with a number sign # (U+0023)
85 85  1. Servo ID number as an integer
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162 162  | 15|[[**G**yre direction (**G**)>>||anchor="H15.GyreRotationDirection28G29"]]| G| QG| CG|✓| ✓| ✓|none |(% style="width:510px" %)Gyre / rotation direction: 1= CW (clockwise) -1 = CCW (counter-clockwise)|(% style="text-align:center; width:113px" %)1
163 163  | 16|[[**ID** #>>||anchor="H16.IdentificationNumber28ID29"]]| | 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
164 164  | 17|[[**B**aud rate>>||anchor="H17.BaudRate"]]| | QB| CB| | | ✓|none (integer)|(% style="width:510px" %) |(% style="text-align:center; width:113px" %)9600
165 -| 18|//{coming soon}//| | | | | | | |(% style="width:510px" %) |(% style="text-align:center; width:113px" %)(((
166 -
165 +| 18|[[**F**irst Position (**P**ulse)>>||anchor="H18.FirstPosition28Pulse2928FP29"]]| | QFP|CFP |X| ✓| ✓|none |(% style="width:510px" %)CFP overwrites CFD and vice-versa|(% style="text-align:center; width:113px" %)(((
166 +Limp
167 167  )))
168 168  | 19|[[**F**irst Position (**D**eg)>>||anchor="H19.FirstPosition28Degrees2928FD29"]]| | QFD|CFD|X| ✓| ✓|none |(% style="width:510px" %)CFD overwrites CFP and vice-versa|(% style="text-align:center; width:113px" %)Limp
169 169  | 20|[[**M**odel **S**tring>>||anchor="H20.QueryModelString28QMS29"]]| | QMS| | | | |none (string)|(% style="width:510px" %) Returns the type of servo (ST, HS, HT)|(% style="text-align:center; width:113px" %)
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456 456  
457 457  Sending this command will change the baud rate associated with servo ID 5 to 9600 bits per second.
458 458  
459 -====== __18. {//Coming soon//}__ ======
459 +====== __18. First Position (Pulse) (**FP**)__ ======
460 460  
461 -Command coming soon....
461 +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. If a first position pulse is assigned, the servo will move to that angle and hold there for up to 2 seconds before going limp should a new pulse not be received.
462 462  
463 +Query First Position in Pulses (**QFP**)
464 +
465 +Ex: #5QFP<cr> might return *5QFP1550<cr>
466 +
467 +The reply above indicates that servo with ID 5 has a first position pulse of 1550 microseconds. If no first position has been set, servo will respond with DIS ("disabled").
468 +
469 +Configure First Position in Pulses (**CFP**)
470 +
471 +Ex: #5CP1550<cr>
472 +
473 +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 (Ex. #5CFP<cr>) results in the servo remaining limp upon power up (i.e. disabled).
474 +
463 463  ====== __19. First Position (Degrees) (**FD**)__ ======
464 464  
465 465  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.
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557 557  
558 558  This command would place the servo in RC wheel mode after a RESET or power cycle. Note that after a RESET or power cycle, the servo will be in RC mode and will not reply to serial commands. Using the command #5CRC<cr> or #5CRC3<cr> which requests that the servo remain in serial mode still requires a RESET command.
559 559  
560 -Important note:** **To revert from RC mode back to serial mode, the [[LSS - Button Menu>>doc:LynxmotionSmartServo.LSS - Button Menu.WebHome]] is required. Should the button be inaccessible (or broken) when the servo is in RC mode and the user needs to change to serial mode, a 5V constant HIGH needs to be sent to the servo's Rx pin (RC PWM pin), ensuring a common GND and wait for 30 seconds. Normal RC PWM pulses should not exceed 2500 milliseconds. After 30 seconds, the servo will interpret this as a desired mode change and change to serial mode. This has been implemented as a fail safe.
572 +Important note:** **To revert from RC mode back to serial mode, the [[LSS - Button Menu>>doc:Lynxmotion Smart Servo (LSS).LSS - Button Menu.WebHome]] is required. Should the button be inaccessible (or broken) when the servo is in RC mode and the user needs to change to serial mode, a 5V constant HIGH needs to be sent to the servo's Rx pin (RC PWM pin), ensuring a common GND and wait for 30 seconds. Normal RC PWM pulses should not exceed 2500 milliseconds. After 30 seconds, the servo will interpret this as a desired mode change and change to serial mode. This has been implemented as a fail safe.
561 561  
562 562  ====== __28. **RESET**__ ======
563 563  
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591 591  
592 592  = Advanced =
593 593  
594 -The motion controller used in serial mode is not the same as the motion controller use in RC mode. RC mode is intended to add functionality to what would be considered "normal" RC behavior based on PWM input.
595 -
596 596  ====== __A1. Angular Stiffness (**AS**)__ ======
597 597  
598 598  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. There are no units.
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623 623  
624 624  ====== __A2. Angular Holding Stiffness (**AH**)__ ======
625 625  
626 -The angular holding stiffness determines the servo's ability to hold a desired position under load. The default value for stiffness depending on the firmware may be 0 or 1. Greater values produce increasingly erratic behavior and the effect becomes extreme below -4 and above +4. Maximum values are -10 to +10. Note that when  considering altering a stiffness value, the end effect depends on the mode being tested.
636 +The angular holding stiffness determines the servo's ability to hold a desired position under load. The default value for stiffness depending on the firmware may be 0 or 1. Greater values produce increasingly erratic behavior and the effect becomes extreme below -4 and above +4. Maximum values are -10 to +10.
627 627  
628 628  Ex: #5AH3<cr>
629 629  
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639 639  
640 640  Ex: #5CAH2<cr>
641 641  
642 -This writes the angular holding stiffness of servo #5 to 2 to EEPROM. Note that when  considering altering a stiffness value, the end effect depends on the mode being tested.
652 +This writes the angular holding stiffness of servo #5 to 2 to EEPROM
643 643  
644 644  ====== __A3: Angular Acceleration (**AA**)__ ======
645 645  
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671 671  
672 672  ====== __A5: Motion Control (**EM**)__ ======
673 673  
674 -The command EM0 disables use of the motion controller (acceleration, velocity / travel, deceleration). As such, the servo will move at full speed for all motion commands. The command EM1 enables use of the motion controller.
684 +{More details to come}
675 675  
676 -Note that if the modifiers S or T are used, it is assumed that motion control is desired, and for that command, EM1 will be used.
677 -
678 678  ====== __A6. Configure LED Blinking (**CLB**)__ ======
679 679  
680 680  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). This is very useful when visually seeing what the servo is doing. You can turn on or off blinking for various LSS status. The command requires that the servo be RESET. Here is the list and their associated value:

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