Prototyping Breakout Boards

SparkFun

Logic Level Converter Bi-Directional (BOB-12009)

SparkFun

Rotary Encoder Breakout - Illuminated (RG/RGB) (BOB-11722)

Adafruit

Stereo 2.1W Class D Audio Amplifier - TPA2012 (ID: 1552)

SparkFun

Breakout Board for Ethernet Magjack

SparkFun

Real Time Clock Module (BOB-12708)

SparkFun

Breakout Board for microSD Transflash

SparkFun

Breakout Board for SD-MMC Cards (BOB-12941)

SparkFun

PCA9306 Level Translator Breakout (BOB-11955)

Adafruit

SPI Non-Volatile FRAM Breakout - 64Kbit / 8KByte (ID: 1897)

Generic / OEM

LED Tactile Button Breakout

SparkFun

Energy Harvester - LTC3588 Breakout (BOB-09946)

Generic / OEM

Teensy Prop Shield - LC - Low Cost (no Motion Sensors)

Adafruit

ATtiny1616 Breakout with seesaw - STEMMA QT / Qwiic

Adafruit

ATtiny816 Breakout with seesaw - STEMMA QT / Qwiic