Reading dc motor encoder data

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
1

hi,
I am using these 4 motors (12V 330 rpm) -

and failing to read encoder data.

here is my gpio setup -

import Jetson.GPIO as GPIO
GPIO.setmode(GPIO.TEGRA_SOC)
ENC1 = 'SPI2_SCK' # A phase output of C1 encoder
ENC2 = 'LCD_TE' # C2 encoder B phase output
GPIO.setup(ENC1, GPIO.IN)
GPIO.setup(ENC2, GPIO.IN)

for both pins, whenever calling GPIO.input(ENC1) or GPIO.input(ENC2) I keep getting a constant value of 1, regardless of motor speed/direction.

any advice would be appreciated.
thanks, a.

3

hello avidan2012,

you may configure the pin as PWM for motor controls,
please also check similar discussion thread, Topic 49025 for reference.
thanks

4

will look into that. just to make sure, I am successfully controlling the motors using adafruit’s featherwing board. my issue is with reading the encoders data. will try to find an answer in the topic you ve mentioned.