Changes for page LSS Communication Protocol
Last modified by Eric Nantel on 2024/11/21 09:43
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... ... @@ -1,5 +1,5 @@ 1 1 (% class="wikigeneratedid" id="HTableofContents" %) 2 -** Page Contents**2 +**Table of Contents** 3 3 4 4 {{toc depth="3"/}} 5 5 ... ... @@ -128,8 +128,6 @@ 128 128 129 129 = Command List = 130 130 131 -== Regular == 132 - 133 133 |= #|=Description|= Action|= Query|= Config|=Session|= RC|= Serial|= Units|=(% style="width: 510px;" %) Notes|=(% style="width: 113px;" %)Default Value 134 134 | 1|[[**L**imp>>||anchor="H1.Limp28L29"]]| L| | | | | ✓|none|(% style="width:510px" %) |(% style="text-align:center; width:113px" %) 135 135 | 2|[[**H**alt & **H**old>>||anchor="H2.Halt26Hold28H29"]]| H| | | | | ✓|none|(% style="width:510px" %) |(% style="text-align:center; width:113px" %) ... ... @@ -458,7 +458,7 @@ 458 458 459 459 ====== __18. First Position (Pulse) (**FP**)__ ====== 460 460 461 -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.459 +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. 462 462 463 463 Query First Position in Pulses (**QFP**) 464 464 ... ... @@ -492,28 +492,26 @@ 492 492 493 493 Ex: #5QMS<cr> might return *5QMSLSS-HS1cr> 494 494 495 -This reply means the servo model 493 +This reply means the servo model is LSS-HS1, meaning a high speed servo, first revision. 496 496 497 497 ====== __21. Query Serial Number (**QN**)__ ====== 498 498 499 -Ex: #5QN<cr> might return *5QN 12345678<cr>497 +Ex: #5QN<cr> might return *5QN~_~_<cr> 500 500 501 -The number in the response (12345678)would bethe servo's serial number which is set andshouldnotby the user.499 +The number in the response is the servo's serial number which is set and cannot be changed. 502 502 503 503 ====== __22. Query Firmware (**QF**)__ ====== 504 504 505 -Ex: #5QF<cr> might return *5QF 411<cr>503 +Ex: #5QF<cr> might return *5QF11<cr> 506 506 507 -The n umber411.505 +The integer in the reply represents the firmware version with one decimal, in this example being 1.1 508 508 509 509 ====== __23. Query Status (**Q**)__ ====== 510 510 511 -The status query described what the servo is currently doing. The query returns an integer which must be looked up in the table below. 512 - 513 513 Ex: #5Q<cr> might return *5Q6<cr>, which indicates the motor is holding a position. 514 514 515 515 |*Value returned|**Status**|**Detailed description** 516 -|ex: *5Q0<cr>|Unknown|LSS is unsure / unknown state512 +|ex: *5Q0<cr>|Unknown|LSS is unsure 517 517 |ex: *5Q1<cr>|Limp|Motor driving circuit is not powered and horn can be moved freely 518 518 |ex: *5Q2<cr>|Free moving|Motor driving circuit is not powered and horn can be moved freely 519 519 |ex: *5Q3<cr>|Accelerating|Increasing speed from rest (or previous speeD) towards travel speed ... ... @@ -548,16 +548,15 @@ 548 548 This command puts the servo into RC mode (position or continuous), where it will only respond to RC pulses. Note that because this is the case, the servo will no longer accept serial commands. The servo can be placed back into smart mode by using the button menu. 549 549 550 550 |**Command sent**|**Note** 547 +|ex: #5CRC<cr>|Stay in smart mode. 551 551 |ex: #5CRC1<cr>|Change to RC position mode. 552 552 |ex: #5CRC2<cr>|Change to RC continuous (wheel) mode. 553 -|ex: #5CRC*<cr>|Where * is any number or value other than 1 or 2 (or no value): stay in smart mode.550 +|ex: #5CRC*<cr>|Where * is any number or value. Stay in smart mode. 554 554 555 -EX: #5CRC 2<cr>552 +EX: #5CRC<cr> 556 556 557 - Thiscommandwouldplace 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.554 +====== ====== 558 558 559 -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. 560 - 561 561 ====== __28. **RESET**__ ====== 562 562 563 563 Ex: #5RESET<cr> or #5RS<cr> ... ... @@ -568,11 +568,11 @@ 568 568 569 569 Ex: #5DEFAULT<cr> 570 570 571 -This command sets in motion the reset ofall values to the default values included with the version of the firmware installed on that servo. The servo then waits for the CONFIRM command. Any other command received will cause the servo to exit the DEFAULT function.566 +This command sets in motion the reset all values to the default values included with the version of the firmware installed on that servo. The servo then waits for the CONFIRM command. Any other command received will cause the servo to exit the DEFAULT function. 572 572 573 573 EX: #5DEFAULT<cr> followed by #5CONFIRM<cr> 574 574 575 -Since it it not common to have to restore all configurations, a confirmation command is needed after a firmware command is sent. Should any command other than CONFIRM be received by the servo after the firmware command has been received, it will e xitthecommand.570 +Since it it not common to have to restore all configurations, a confirmation command is needed after a firmware 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. 576 576 577 577 Note that after the CONFIRM command is sent, the servo will automatically perform a RESET. 578 578 ... ... @@ -588,11 +588,9 @@ 588 588 589 589 Note that after the CONFIRM command is sent, the servo will automatically perform a RESET. 590 590 591 -= Advanced = 592 - 593 593 ====== __A1. Angular Stiffness (**AS**)__ ====== 594 594 595 -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. Thereare no units.588 +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. 596 596 597 597 A positive value of "angular stiffness": 598 598 ... ... @@ -604,7 +604,7 @@ 604 604 * Causes a slower acceleration to the travel speed, and a slower deceleration 605 605 * Allows the target position to deviate more from its position before additional torque is applied to bring it back 606 606 607 -The default value forstiffnessdependingonthefirmwaremay be0or1.and the effect becomes extreme below -4 and above +4.Maximum values are -10 to +10.600 +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. 608 608 609 609 Ex: #5AS-2<cr> 610 610 ... ... @@ -620,7 +620,7 @@ 620 620 621 621 ====== __A2. Angular Holding Stiffness (**AH**)__ ====== 622 622 623 -The angular holding stiffness determines the servo's ability to hold a desired position under load. The defaultvalue forstiffnessdependingonthe firmwaremaybe 0 or1. Greatervaluesproduceincreasinglyerratic behavior and theeffectbecomesextreme below -4andabove+4.Maximum valuesare-10to +10.616 +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. 624 624 625 625 Ex: #5AH3<cr> 626 626 ... ... @@ -652,24 +652,14 @@ 652 652 653 653 ====== __A6. Configure LED Blinking (**CLB**)__ ====== 654 654 655 -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. Here is the list and their associated value: 648 +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). 649 +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; 656 656 657 -(% style="width:195px" %) 658 -|(% style="width:134px" %)**Blink While:**|(% style="width:58px" %)**#** 659 -|(% style="width:134px" %)No blinking|(% style="width:58px" %)0 660 -|(% style="width:134px" %)Limp|(% style="width:58px" %)1 661 -|(% style="width:134px" %)Holding|(% style="width:58px" %)2 662 -|(% style="width:134px" %)Accelerating|(% style="width:58px" %)4 663 -|(% style="width:134px" %)Decelerating|(% style="width:58px" %)8 664 -|(% style="width:134px" %)Free|(% style="width:58px" %)16 665 -|(% style="width:134px" %)Travelling|(% style="width:58px" %)32 666 -|(% style="width:134px" %)Always blink|(% style="width:58px" %)63 667 - 668 668 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: 669 669 670 670 Ex: #5CLB0<cr> to turn off all blinking (LED always solid) 671 -Ex: #5CLB1<cr> only blink when limp (1)672 -Ex: #5CLB2<cr> only blink when holding (2)673 -Ex: #5CLB12<cr> only blink when accel or decel (accel 4 + decel 8 = 12)674 -Ex: #5CLB48<cr> only blink when free or travel (free 16 + travel 32 = 48)675 -Ex: #5CLB63<cr> blink in all status (1 + 2 + 4 + 8 + 16 + 32)654 +Ex: #5CLB1<cr> only blink when limp 655 +Ex: #5CLB2<cr> only blink when holding 656 +Ex: #5CLB12<cr> only blink when accel or decel 657 +Ex: #5CLB48<cr> only blink when free or travel 658 +Ex: #5CLB63<cr> blink in all status