redboard_servo_test.py

from __future__ import print_function  # Make print work with python 2 & 3
print('Please wait while modules load...')
import time
import pigpio
import smbus
import subprocess

#Setup I2C
try:
    bus = smbus.SMBus(1)
    address = 0x48
except FileNotFoundError: 
    print('')
    print('')
    print('I2C not enabled!')
    print('Enable I2C in raspi-config')
    
pi.set_mode(servo_20, pigpio.OUTPUT)
pi.set_mode(servo_21, pigpio.OUTPUT)

servo_channels = [7, 8, 9, 10, 11, 5, 6, 13, 27, 20, 21, 22]

print("Set mode of servo channels to output")
for channel in servo_channels:
  pi.set_mode(channels, pigpio.OUTPUT)

DELAY = 2.0
PWM_VALUE = 100
print(f"set all channels to have pwm of {PWM_VALUE} for {DELAY} seconds")
for channel in servo_channels:
  pi.set_servo_pulsewidth(channel, PWM_VALUE)

time.sleep(DELAY)

print("Turning all channels off")
for channel in servo_channels:
  pi.set_servo_pulsewidth(channel, 0)
  
print("Done.")