Arduino > Feather
Adafruit 0.8″ 8×16 LED Matrix FeatherWing Display – Red Adafruit
Arduino > Motion Control
Adafruit 16-Channel 12-bit PWM/Servo Shield – I2C interface Adafruit
Breakout Boards > Other
Adafruit FT232H Breakout – General Purpose USB to GPIO+SPI+I2C Adafruit
Sensors > I2C > Temperature & Humidity
Raspberry Pi > Pi HATs & Plates
Arduino > Capacitive
CAP1188 – 8-Key Capacitive Touch Sensor Breakout – I2C or SPI Adafruit
LCDs & Displays
Audio
micro:bit add on
Raspberry Pi > Accessories
Raspberry Pi > Accessories
Raspberry Pi > Pi HATs & Plates
SparkFun Qwiic pHAT Extension for Raspberry Pi 400 SparkFun Electronics
Raspberry Pi > Accessories
Raspberry Pi > Cables
SparkFun Qwiic Starter Kit for Raspberry Pi SparkFun Electronics
Raspberry Pi > Pi HATs & Plates