Nodemcu Blink Example

Nodemcu Working LED Blink Example

-- Blink using timer alarm --
timerId = 0
dly = 1000
-- use D4
ledPin = 4
-- set mode to output
gpio.mode(ledPin,gpio.OUTPUT)
ledState = 0
-- timer loop
tmr.alarm( timerId, dly, 1, function()
ledState = 1 - ledState;
-- write state to D4
gpio.write(ledPin, ledState)
end)

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