Button board for CNC enclosure control. Python script meant to be ran on RPi to watch if a button was pressed and send webhook POST on button press to home assistant to turn on / off smart outlets for cnc killswitch, vacuum, lights, fan.
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# example gpiozero code that could be used to have a reboot
# and a shutdown function on one GPIO button
#!/usr/bin/python
from time import sleep
from gpiozero import Button
from signal import pause
import requests
held_for=0.0
trigger1time = 0.5
trigger2time = 5.0
def cncbutton_rls():
global held_for
print("released!")
print("released after", held_for, "seconds.")
# example code showing what to do with this time
if (held_for > trigger1time):
# If held for 2 seconds...
print("Button:CNC Held for over .30 seconds.")
print('Toggling CNC E-STOP')
requests.post("webhook")
held_for = 0.0
elif (held_for < trigger1time):
# If held under 2 seconds...
print("Button:CNC Held for under .30 seconds, probably noise...")
held_for = 0.0
def cncbutton_hld():
# callback for when button is held
# is called every hold_time seconds
global held_for
# need to use max() as held_time resets to zero on last callback
held_for = max(held_for, cncbutton.held_time + cncbutton.hold_time)
print("held for", held_for, "seconds.")
def vacuumbutton_rls():
global held_for
print("released!")
print("released after", held_for, "seconds.")
# example code showing what to do with this time
if (held_for > trigger1time):
# If held for 2 seconds...
print("Button:VAC Held for over .30 seconds.")
print('Toggling Vacuum')
requests.post("webhook")
held_for = 0.0
elif (held_for < trigger1time):
# If held under 2 seconds...
print("Button:VAC Held for under .30 seconds, probably noise...")
held_for = 0.0
def vacuumbutton_hld():
# callback for when button is held
# is called every hold_time seconds
global held_for
# need to use max() as held_time resets to zero on last callback
held_for = max(held_for, vacuumbutton.held_time + vacuumbutton.hold_time)
print("held for", held_for, "seconds.")
def lightbutton_rls():
global held_for
print("released!")
print("released after", held_for, "seconds.")
# example code showing what to do with this time
if (held_for > trigger1time):
# If held for 2 seconds...
print("Button:Lights Held for over .30 seconds.")
print('Toggling Lights')
requests.post("webhook")
held_for = 0.0
elif (held_for < trigger1time):
# If held under 2 seconds...
print("Button:Lights Held for under .30 seconds, probably noise...")
held_for = 0.0
def lightbutton_hld():
# callback for when button is held
# is called every hold_time seconds
global held_for
# need to use max() as held_time resets to zero on last callback
held_for = max(held_for, lightbutton.held_time + lightbutton.hold_time)
print("held for", held_for, "seconds.")
def fanbutton_rls():
global held_for
print("released!")
print("released after", held_for, "seconds.")
# example code showing what to do with this time
if (held_for > trigger1time) and (held_for < trigger2time):
# If held for 2 seconds...
print("Button:Fan Held for over .30 seconds.")
print('Toggling Fan')
requests.post("webhook")
held_for = 0.0
elif (held_for > trigger2time):
# If held under 2 seconds...
print("Button:Fan Held for over 5 seconds.")
print('Toggling Fan & Garage Door')
requests.post("webhook")
held_for = 0.0
elif (held_for < trigger1time):
# If held under 2 seconds...
print("Button:Fan Held for under .30 seconds, probably noise...")
held_for = 0.0
def fanbutton_hld():
# callback for when button is held
# is called every hold_time seconds
global held_for
# need to use max() as held_time resets to zero on last callback
held_for = max(held_for, fanbutton.held_time + fanbutton.hold_time)
print("held for", held_for, "seconds.")
cncbutton=Button(21, hold_time=.30, hold_repeat=True, pull_up = False)
vacuumbutton=Button(20, hold_time=.30, hold_repeat=True, pull_up = False)
lightbutton=Button(19, hold_time=.30, hold_repeat=True, pull_up = False)
fanbutton=Button(16, hold_time=.30, hold_repeat=True, pull_up = False)
cncbutton.when_held = cncbutton_hld
cncbutton.when_released = cncbutton_rls
vacuumbutton.when_held = vacuumbutton_hld
vacuumbutton.when_released = vacuumbutton_rls
lightbutton.when_held = lightbutton_hld
lightbutton.when_released = lightbutton_rls
fanbutton.when_held = fanbutton_hld
fanbutton.when_released = fanbutton_rls
pause()