April 2017
Intermediate to advanced
268 pages
5h 36m
English
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Dimming an LED
In this section, we are going to look at how to dim an LED using the analog output function. This will involve controlling the brightness of an LED that is attached to one of the GPIO pins of the ESP8266.
Getting ready
You will need an ESP8266 board and a USB cable to do this tutorial. There will also be some additional components required for this project. They include:
- LED (https://www.sparkfun.com/products/528)
- 220 Ω resistor (https://www.sparkfun.com/products/10969)
- Breadboard
- Jumper wires
Start by mounting the LED onto the breadboard. Connect one end of the 220 Ω resistor to the positive leg of the LED (the positive leg of an LED is usually the taller one of the two legs). Connect the other end of the resistor to another rail of the ...