Xadow - LED 5X7 --------------- The Xadow LED 5x7 consists of a 5x7 monochrome LED matrix and a LED controller. You can sending command to the LED controller through I2C interface (address 0x21) to display numbers, letters or even pixel images. This could come handy sometime in your project. Include Xadow LED 5x7 * 1 FPC Cable 11 PIN * 2 Features: LED Matrix Plug-and-play if connected with RePhone Kit Create Open source and modular design Slim and small Built-in 11 PIN Xadow Connectors for full flexible connection with other Xadow Modules Stackable, chainable and sewable with other Xadow Modules Specification: Microcontroller: STM32F030F4 Core: ARM® 32-bit Cortex® -M0 CPU Power Supply: 3.3 – 6V (via breakout pins) Flash: 16 KB SRAM: 4 KB Clock Speed: 48 MHz Interfaces: Interface with Xadow GSM+BLE through I2C (7-bit address 0x21) Dimension: 25.37mm X 20.30mm / 1’’ X 0.8’’ ![enter image description here][1] For more detail, please visit: http://www.seeedstudio.com/item_detail.html?p_id=2561 [1]: /editor/20160118/569c491915011.png