Since the environment of the client-server-target is currently quite functional in the messaging standpoint, I decided to try connecting a simple LED light to the Raspberry Pi to see if it could "open" a door when the command is received. Installed the RPi.GPIO module (a Python module that gives the user command of the GPIO--General-Purpose Input/Output--ports in the Raspberry Pi) and connected the LED light to a GPIO pin. When the target received a request message, it would signal the GPIO pin to drive a current to the LED to light it up for 2 seconds. in main: if __name__ == "__main__": GPIO.setmode(GPIO.BCM) GPIO.setup(17, GPIO.OUT) in the on_message's request-received logic: GPIO.output(17, True) time.sleep(2) GPIO.output(17, False) The video is a weak visual result. You can a click when the LED lights up; that was the sound of the key being pressed that sent the request message. Now, tim...
inyong's side/hobby projects

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