Sunday, May 13, 2018
s-retract.py actuator script
import RPi.GPIO as GPIO
import time
# CHECK wires at RPi header for loose connections when problems occur
# HIGH is low and LOW is high in GPIO using the RPi.GPIO library
# ADD PWM
# 35 seconds is the actuator run time from beginning to end.
# Initialize software and hardware
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(26,GPIO.OUT)
GPIO.setup(19,GPIO.OUT)
GPIO.setup(13,GPIO.OUT)
GPIO.setup(6,GPIO.OUT)
# Shut all relays off. Relays are usually off on power up.
GPIO.output(26,GPIO.HIGH)
GPIO.output(19,GPIO.HIGH)
GPIO.output(13,GPIO.HIGH)
GPIO.output(6,GPIO.HIGH)
print('Initialized.')
#####################
# Do this at the end of the day, at 6:00 PM
#Retract on
GPIO.output(26,GPIO.LOW)
GPIO.output(19,GPIO.LOW)
print('Retracting...')
time.sleep(32)
#Retract off
GPIO.output(26,GPIO.HIGH)
GPIO.output(19,GPIO.HIGH)
print('Retraction done.')
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