Datasheet

The LED will now be blinking on and off.

Note that since it's in a loop, it's not possible to get it to stop via the interpreter. To stop it, click the Reset button again!

This code halts the processor during the tmr.delay, a smarter way to blink an LED is to use the timer capability to set off

the LED control (code from here)

Scanning & Connecting to WiFi

We'll continue with a quick demo of scanning for WiFi and connecting.

Once you're back at the Lua prompt, set the ESP8266 into WiFi Client mode with

gpio.mode(3, gpio.OUTPUT)

while 1 do

gpio.write(3, gpio.HIGH)

tmr.delay(1000000) -- wait 1,000,000 us = 1 second

gpio.write(3, gpio.LOW)

tmr.delay(1000000) -- wait 1,000,000 us = 1 second

end

-- Pin definition

local pin = 3

local status = gpio.LOW

local duration = 1000 -- 1 second duration for timer

-- Initialising pin

gpio.mode(pin, gpio.OUTPUT)

gpio.write(pin, status)

-- Create an interval

tmr.alarm(0, duration, 1, function ()

if status == gpio.LOW then

status = gpio.HIGH

else

status = gpio.LOW

end

gpio.write(pin, status)

end)