The SparkFun RedBoard Qwiic is an Arduino-compatible development board in the UNO R3 form factor with a built-in Qwiic connector for solderless I2C hookup. It programs over USB Micro-B using the Arduino IDE — select "Arduino UNO" from the board menu and you're ready to go.

Key improvements over the original RedBoard include an AP2112 voltage regulator (sourcing up to 600 mA at 3.3V for daisy-chaining Qwiic boards), a CH340C USB-serial converter with automatic driver installation on modern operating systems, and solder jumpers for disconnecting I2C logic-level converters or switching between 3.3V and 5V operation.

Key Features

• Arduino UNO R3 Compatible – Same form factor, same shield compatibility
• Qwiic Connector – Solderless I2C connections to sensors and breakouts
• AP2112 Regulator – 600 mA at 3.3V for powering multiple Qwiic boards
• CH340C USB-Serial – Micro-B connector with automatic driver support
• 20 Digital I/O Pins – 6 PWM, plus UART, SPI, and external interrupts
• SDA/SCL/IOREF Breakout – R3-compatible header layout
• Voltage Jumpers – Switch between 3.3V and 5V operation
• 7–15V DC Input – Barrel jack or USB power

Ideal For

• Arduino projects with I2C sensors and displays
• Rapid prototyping with Qwiic plug-and-play modules
• Learning electronics with Arduino IDE

Package Contents

• 1× SparkFun RedBoard Qwiic

Resources

• Hookup Guide