TwitchLEDExample

A quick & dirty example for a ESP32 connecting to Twitch-Chat via IRC Client and setting LED Color for a WS2812b LED Stripe.

I would not recommend this approach for production use. It's really better to use a de-centralized approach:

• use a MQTT Server, e.g. Mosquitto as a central message broker
• use e.g. PubSubClient library to connect the ESP32 to MQTT
• use whatever you prefer to push Twitch-Messages to MQTT, e.g.:
  • Node-Red (nodejs based 'graphical' automation-system with a huge community and plugins, ready to use twitch-plugin exists)
  • write your own Twitch-to-MQTT Integration, e.g. with tmi.js, twitchlib or whatever Language you prefer :)

Setup

1. Create a credentials.h file in root folder:
   • define WIFI_SSID and WIFI_PASSWORD with your WIFI Credentials
   • see credentials_example.h for an example :)
2. see src/main.cpp to adjust DATA_PIN for the LEDs and IRC_CHANNEL:

#define IRC_SERVER "irc.chat.twitch.tv"
#define IRC_PORT 6667
#define IRC_CHANNEL "#sascha_lb" // Twitch Channel to join, prepend with #
String IRC_NICKNAME; //will be generated


#define DATA_PIN 16 // data PIN for WS2812
#define NUM_LEDS 5

3. Change the board in platformio.ini
   • Find your board at https://platformio.org/boards

Usage

Type !led followed by a color into the twitch chat to change the LED Stripes color:

• !led rot changes color to red
• !led grün changes color to green
• !led blau changes color to blue

The commands are parsed in the callback function (~lines 29++), the color is being set at the begin of the loop function.

Used Libraries / Tools

• PlatformIO http://platformio.org/
• ArduinoIRC: https://github.com/fredimachado/ArduinoIRC
• FastLED: https://github.com/FastLED/FastLED