TM1638 MCU 8 Bit LED Digital Tube Keyboard Module Scan and Display Module

• http://arduinolearning.com/code/qyf-tm1638-and-arduino-module.php
• https://github.com/rjbatista/tm1638-library

Features:
1. Only need 3-wire to control
2. Adapts TM1638 digital tube drive chip. Common anode LED digital tube.
3. Only need three common IO and could drive,no need MCU scan,save MCU sources.
4. With 8 digital tube(including decimal point).
5. 16 buttons (4x4)
6. Support 8 degree brightness asjustment
7. Size: 7 x 7cm (2.7'' x 2.7'')

Package includes:

1 x 8 Bits Keyboard
5 x Dupont Line