Alternative I2C device for jetbot

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
1

Hello all.

Im trying to use PCF8574 module for my jetbot.
Is it possible to modify the adafruit module file and change the hex address the script is looking for? I would need to remap the outputs of course.
I can see my module at hex address 27 on the nano.

I’m also not really sure why the motor driver isn’t just run from the gpio if anyone has a good reason they can suggest?

Thanks

2

Please refer to Jetson AGX Xavier I2C not working anymore - Jetson & Embedded Systems / Jetson AGX Xavier - NVIDIA Developer Forums to see if can help.

4

For others who have googled for this same question.

I’ve changed the hex address after finding the location of Adafruit motor hat file :
usr/local/lib/python3.6/dist-packages/Adafruit_MotorHAT-1.4.0-py3.6.egg/Adafruit_MotorHAT/Adafruit_MotorHAT_Motors.py

So far its working, some output to the wheels! need to figure out the right in1 and in2 for the driver.