Need script to make scheduled 8 channel relay outputs [closed]

Question

This script fires my relays, but I don't know how to change duration and need it to fire daily to run pump and ozonator for an iso float tank. I'm currently only using GPIO 9 and 10

#!/usr/bin/python
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)

# init list with pin numbers

pinList = [10, 9]

# loop through pins and set mode and state to 'low'

for i in pinList:
    GPIO.setup(i, GPIO.OUT)
    GPIO.output(i, GPIO.HIGH)

# time to sleep between operations in the main loop

SleepTimeL = 2

# main loop

try:
  GPIO.output(10, GPIO.LOW)
  print ("OZONE")
  time.sleep(SleepTimeL);
  GPIO.output(9, GPIO.LOW)
  print ("PUMP")
  time.sleep(SleepTimeL);
  GPIO.cleanup()
  print ("Good bye!")

# End program cleanly with keyboard

Answer 1

Ah, this is a very good program, so flexible to scale up. I would suggest the following changes.

1. To scale up from 2 relays to 8 relays, change the following first statement to second:

   pinList = [10, 9]

   pinList = [10, 9, 8, 7, 6, 5, 4, 3]

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2. To change operation delay from two seconds to three seconds, say, change the following first statement to second.

   SleepTimeL = 2

   SleepTimeL = 3

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3. To scale up two relay operations to eight, change the following 6 line segment to the for loop after.

   GPIO.output(10, GPIO.LOW)

   print ("OZONE")

   time.sleep(SleepTimeL)

   GPIO.output(9, GPIO.LOW)

   print ("PUMP")

   time.sleep(SleepTimeL)

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for pin in pintlist:

    GPIO.output(pin, GPIO.LOW) 

    print ("OZONE") 

    time.sleep(SleepTimeL) 

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There is 99% chance the my suggested changes create bugs. Don't worry. Report your bugs as a comment below my answer. Everybody would come to help.

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