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@@ -0,0 +1,30 @@
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+-- garage_door_opener.lua
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+-- Part of nodemcu-httpserver, example.
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+-- Author: Marcos Kirsch
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+
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+local function pushTheButton(connection, pin)
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+
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+ -- Redirect the user back to the static page where the garage door opener buttons are.
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+ connection:send("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\Cache-Control: private, no-store\r\n\r\n")
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+ connection:send('<script type="text/javascript">window.location.replace("/garage_door_opener.html");</script>')
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+
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+ -- push the button!
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+ -- Note that the relays connected to the garage door opener are wired
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+ -- to close when the GPIO pin is low. This way they don't activate when
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+ -- the chip is reset and the GPIO pins are in input mode.
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+ gpio.write(pin, gpio.LOW)
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+ gpio.mode(pin, gpio.OUTPUT)
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+ gpio.write(pin, gpio.LOW)
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+ tmr.delay(300000) -- in microseconds
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+ gpio.write(pin, gpio.HIGH)
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+ gpio.mode(pin, gpio.INPUT)
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+
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+end
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+
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+return function (connection, args)
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+ print('Garage door button was pressed!')
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+ print('Door', args.door)
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+ if args.door == "1" then pushTheButton(connection, 3) -- GPIO0
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+ elseif args.door == "2" then pushTheButton(connection, 4) -- GPIO2
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+ else dofile("httpserver-error.lc")(connection, {code = 400}) end -- Bad Request
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+end
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