Having trouble with GPIO pins

[ohme33]

I have just gotten my jetson orin nano and can’t seem to get some simple python tester code working on it before i wire it to my motor drivers. Am I doing something wrong here? the 5v seems to be working, as well as the servo, as it twitches when I attach and detach the 5v wire. The code runs with no issues. Here is my code and my setup. I would be grateful if you could help. Thanks.

import Jetson.GPIO as GPIO
import time

Pin Definitions

servo_pin = 32 # Physical pin 32 (GPIO07)

‘’’
Servo Connection Guide:

• Red wire → Pin 2 (5V)
• Brown wire → Pin 6 (GND) [or any other GND: 14, 20, 30, 34]
• Orange wire-> Pin 32 (GPIO07/PWM)
  ‘’’

def setup():
GPIO.setmode(GPIO.BOARD)
GPIO.setup(servo_pin, GPIO.OUT)
# Create PWM object at 50Hz (standard frequency for servo motors)
# servo_pin = which pin to use
# 50 = 50Hz frequency (20ms period)
return GPIO.PWM(servo_pin, 50)

def cleanup():
GPIO.cleanup()

def main():
try:
# Initialize GPIO and PWM
pwm = setup()
pwm.start(0)

    print("Servo Test Program")
    print("Press Ctrl+C to exit\n")
    
    while True:
        # Position control through duty cycle:
        # 2.5% = 0.5ms pulse (0 degrees)
        # 7.5% = 1.5ms pulse (90 degrees)
        # 12.5% = 2.5ms pulse (180 degrees)
        
        print("Moving to 0 degrees")
        pwm.ChangeDutyCycle(2.5)
        time.sleep(1)
        
        print("Moving to 90 degrees")
        pwm.ChangeDutyCycle(7.5)
        time.sleep(1)
        
        print("Moving to 180 degrees")
        pwm.ChangeDutyCycle(12.5)
        time.sleep(1)
        
        response = input("Press Enter to repeat or 'q' to quit: ")
        if response.lower() == 'q':
            break
            
except KeyboardInterrupt:
    print("\nProgram stopped")
finally:
    if 'pwm' in locals():
        pwm.stop()
    cleanup()

if name == “main”:
main()

[KevinFFF]

Hi ohme33,

It seems you are using Orin Nano devkit.
What’s the Jetpack version in use?

@ohme33

Orange wire-> Pin 32 (GPIO07/PWM)

Have you configured the pinmux for PIN32 of 40-pins header before use?

Or have you tried using gpiod to control this pin?