Libary for jrk g2 for python for raspberry

Support Motor controllers/drivers and motors
1

is there a libaray for the jrk to use with a raspberry pi with i2c bus?

i only need set.target and get.feedback

2

Hello.

No; we do not have a Python module for the Jrk G2 controller for the Raspberry Pi. If you do not have a particular reason for using I2C to communicate with the Jrk G2 from your Raspberry Pi, you might consider using jrk2cmd, a command-line utility that controls the Jrk G2 via its native USB interface. You can find more details in the Jrk G2 Motor Controller User’s Guide, particularly the “Setting up USB control” section.

- Amanda

3

Hello.

We have developed some example Python code for talking to the Jrk over I²C under Linux. You can find it in “Example I²C code for Linux in Python” section in the Jrk G2 user’s guide. It shows how to set the target and get the feedback.

–David

4

Ok! Thank you!

I am using a asus tinkerboard with i2c. following code with python3 an smbus runs for me very well…

from tkinter import *
import smbus

bus = smbus.SMBus(1)    # 0 = /dev/i2c-0 (port I2C0), 1 = /dev/i2c-1 (port I2C1)

addr = 0x0b  #7 bit address (will be left shifted to add the read write bit)
cmd = 0xC0

target = 322




def set_target(target):

    i2cBytes1 = cmd+(target & 0x1F)
    i2cBytes2 = (target >> 5) & 0x7F
    bus.write_byte_data(addr, i2cBytes1 , i2cBytes2)
 
def get_feedback():

      cmd=0xA7
      b = bus.read_i2c_block_data(addr, cmd)
      return b[0] + 256 * b[1]

def motorstop():

     bus.write_byte_data(addr, 0xFF, 0x80)