Hi! I require your help regarding a problem I’m encountering. Description: i trying to make a PID corretor to control the servomotor’s speed using a raspberry . the LSS.py library does not give me much liberty to control the spped the only functions given are move and move rel…

@derbel199 Welcome to the RobotShop Community! Spotted your ticket and noticed you had posted here as well. You are correct that the Python library does not include that functionality. However, the LSS communication protocol is meant to be human readable and as such, you can sen…

Some posts with similar topics. If their work is of any interest, you can always do an @username with follow-up questions. [image] LSS motor velocity control Servo Erector Set Hi, I have 4 lynxmotion lss arms that I want to control using v…

can some of the tech team implement the Raw Duty-cycle Move function in python so i can add it to the lss.py library and therefor use it directly . that would be of a great help .

Understood that this would be beneficial, but the team has current priorities and needs to keep to a timeline. We will be happy to include your suggestion when considering future development / maintenance. A “library” is not necessary to send commands to the servo - you only nee…

Hi @derbel199 ! You could add these lines to the lss.py library: def moveRDM(self, duty): return (genericWrite(self.servoID, “RDM”, duty)) under def wheelRPM(self, rpm): return (genericWrite(self.servoID, lssc.LSS_ActionWheelRPM, rpm)) Then you can use it like: myLSS …

hi @geraldinebc15 , the function moveRDM does not work and the error is : invalid character in identifier . i think we should add something in the lss_const.py . the problem is in the string “RDM” i guess

Hmm, that seems strange. I haven’t tested RDM but I created other functions the same way before and they have worked for me Try typing all the characters by yourself (especially the “”) and make sure the indentation is there It should look like this [image] NOT like this [i…

i have been able to create a function that takes two parameters speed (deg per sec ) and the position (deg*10) . it workes just fine and the result is satisfying . now , comparing my function to the move function that takes as parameter just the position and sets by its own the…

Unfortunately any information related to the firmware used within the servo is not open source.

Speed control of a LSS servo motor using a Raspberry

Lynxmotion Servo Erector Set

cbenson September 21, 2020, 12:16pm 4

Some posts with similar topics. If their work is of any interest, you can always do an @username with follow-up questions.