Create your own Slack bot with a Raspberry Pi Pico W

Slack is a popular cloud-based instant messaging platform used by millions of people every day for business and community communications.  In addition to human-to-human messaging, Slack provides an API for developers to extend the built-in functionality via apps and bots.

This guide will cover how a Raspberry Pi Pico W board can use the Slack API to send and receive messages using its built-in Wi-Fi® connectivity.  To keep things simple the guide will focus on controlling the board’s built-in LED.  When the Raspberry Pi Pico W is mentioned:

-With the text “LED on” it will turn the built-in LED on, then respond with a confirmation message.

-With the text “LED off” it will turn the LED built-in off, then respond with a confirmation message.

You can extend the example code and:

Control external LEDs or actuators

Report data or alerts from sensors