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What is the SparkFun RedBoard?
At SparkFun we use many Arduinos, and we’re always looking for the simplest, most stable one. Each board is a bit different, and no one board has everything we want, so we decided to make our own version that combines all our favorite features. The SparkFun RedBoard combines the simplicity of the UNO’s Optiboot bootloader (which is used in the Pro series), the stability of the FTDI (which we all missed after the Duemilanove was discontinued) and the R3 shield compatibility of the latest Arduino UNO R3.
We will be programming the RedBoard over a USB Mini-B cable using the Node.js and Johnny-Five: Just plug in the board after installing Firmata, and you’re ready to run code. The RedBoard has all of the hardware peripherals you know and love: 14 digital I/O pins with 6 PWM pins, 6 analog inputs, UART, SPI and external interrupts. We’ve also broken out the SDA, SCL and IOREF pins that showed up on the UNO R3, so the RedBoard will be compatible with future shields. This version adds an SMD ISP header for use with shields.
You can power the RedBoard over USB or through the barrel jack. The onboard power regulator can handle anything from 7 to 15VDC. Check out the related items below for a compatible wall-wart power supply.