Arduino: a full traffic light with pedestrian button
Build a traffic light with a pedestrian crossing button using a proper state machine. The project that teaches event timing without delay().
Tag
#led
8 tutorials
ESP32: drive an addressable RGB LED strip over RMT, the right way
Wire a WS2812B addressable RGB LED strip to an ESP32, drive it with the RMT peripheral and the FastLED library, and avoid the 800-LED limit and the always-on power math.
ESP32: PWM on every pin with the LEDC peripheral
Use the ESP32's LEDC hardware to generate PWM on any GPIO. The right way to dim LEDs, drive servos, and control motor speed.
ESP32: drive a TLC5940 16-channel PWM LED driver
When the ESP32's LEDC peripheral is not enough, the TLC5940 adds 16 channels of 12-bit PWM over SPI. The right pick for big LED projects.
Pico: use PIO to drive WS2812B LEDs (NeoPixels)
The Pico's Programmable I/O can drive WS2812B LEDs without blocking your code. A reusable PIO program you can drop into any project.
Pico: blink the onboard LED with MicroPython (the 5-minute start)
The shortest possible Pico + MicroPython tutorial. Blink the LED. Get to a working project before you know all the theory.
ESP32: drive WS2812B addressable LEDs (NeoPixels)
Wire a strip of WS2812B LEDs to an ESP32 and drive colors, brightness, and animations from Arduino code. The classic ESP32 eye-candy project.
Arduino: blink an LED (the classic first project)
The minimum Arduino sketch. Blink the onboard LED on pin 13. If you have never programmed an Arduino, start here.