src/doord.py
author Luke Hoersten <luke@hoersten.org>
Thu, 22 Feb 2018 22:09:20 -0600
changeset 16 23b704e271bb
parent 13 684ac329e7da
permissions -rwxr-xr-x
Minor fixes.
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#!/usr/bin/env python3
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import time
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import automationhat
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import sys
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import queue
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import threading
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def main():
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    command_queue = queue.LifoQueue()
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    read_thread = threading.Thread(target=read_loop, args=[command_queue])
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    read_thread.start()
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    run_loop(command_queue)
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def read_loop(command_queue):
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    while True:
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        command_queue.put_nowait(sys.stdin.readline().rstrip('\n'))
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def run_loop(command_queue):
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    thread_local = threading.local()
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    thread_local.doorbell_on_state = False
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    while True:
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        run_command(command_queue)
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        read_doorbell(thread_local)
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def run_command(command_queue):
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    try:
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        command = command_queue.get(timeout=0.5)
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    except queue.Empty:
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        pass
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    else:
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        automationhat.relay.on() if command == "unlock" else automationhat.relay.off()
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def read_doorbell(thread_local):
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    analog_value = automationhat.analog.one.read()
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    doorbell_on_state = 6.0 < analog_value and analog_value <= 6.22
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    if analog_value < 7.55:
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        print("doorbell analog value: {}; ringing: {}; ring range: (6.0, 6.22]".format(analog_value, doorbell_on_state))
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    if doorbell_on_state != thread_local.doorbell_on_state:
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        thread_local.doorbell_on_state = doorbell_on_state
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        print("doorbell on") if doorbell_on_state else print("doorbell off")
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if __name__ == "__main__":
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    main()