Light Theremin - The rapid switching on and off of this “astable oscillator circuit” generates sound — buzzes and tones of different frequencies.

Using a Raspberry Pi to communicate with Arduino to display Twitter Hash Tag.

Use an Arduino to read temperature, humidity, and pressure data from a BME280 and send it over a simple LoRa connection to a Raspberry Pi server.

Create all the things for the “Internet of Things” in minutes

This Qwiic pHAT for Raspberry Pi is based on the Qwiic Hat. The board adds the quickest and easiest way to utilize SparkFun's Qwiic ecosystem while still using that Raspberry Pi that you've come to know and love.