Building a Class D Audio Amplifier HAT
This tutorial walks through a Raspberry Pi HAT built around a PAM8403 class D amplifier, with stereo input, a master volume control, and speaker terminals.
Building an I2C Environmental Sensor HAT
This tutorial walks through an I2C environmental sensor HAT built around a BME280 breakout, with pull-up resistors, an optional OLED header, and layout guidance for a clean Raspberry Pi accessory board.
Building a Simple Buzzer HAT
This tutorial will walk you through building a Raspberry Pi HAT with a simple buzzer using tscircuit.