TWI 7-seg Display with blue LEDs - kit

The TWI 7-segment Display is an easy to use 4-digit 7-segment display that is controlled using the TWI (I2C compatible) protocol. It is super-easy to control with any microcontroller that supports the TWI protocol. Only four wires are required in total, one for power (runs on both 3.3V and 5V), one for ground, and two for the TWI protocol.

Some assembly required - SMD elements are already soldered, You need solder LED digits and connectors.

Arduino library and Low-level avr-gcc library (available at GitHub)

Open Source Firmware (available at GitHub)

Assembly instructions on Akafugu product page.