SparkFun Redstick

The RedStick combines some of our favorite features like the Uno’s Optiboot bootloader, the FTDI, small size, and the ability to plug directly into a computer’s USB port (no FTDI board or USB cable required).

The RedStick can be programmed by just plugging the board into your computer using the Arduino IDE: Just plug in the board, select “Arduino UNO” from the board menu and you’re ready to upload code. The RedStick also has the hardware features you are used to: 14 Digital I/O pins with 6 PWM pins, 8 Analog Inputs, UART, SPI, I²C and external interrupts. This is all in a tiny package that can be plugged directly into your computer.

You can power the SparkFun RedStick over the USB plug or through the power input (which supports a JST connector for a single celled Lipo). The onboard boost circuit can regulate anything from 2-6V. While the board does not have a battery charger, it can be powered over a single celled Lipo or even 2 AA batteries. Check out or related products for batteries and battery cases.

Features:

• A boost regulator providing 5V to the Atmega328p from an input range of 2 to 6 volts.
• 16 MHz system clock (allowed because of the additional supply voltage)
• Uno compatible in the Arduino IDE. Simply select the board “Arduino/Genuino Uno” and go!
• USB end matches standard USB thickness and width.

Links:

• Design Files, Software @GitHub

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