8-Bit LED 8-Bit Digital Tube 8-Bit Key TM1638 module for AVR Arduino ARM STM32

Features:

• 100% brand new and high quality
• 8 Bits, 8 keys, 8 LEDs, 8 digital tubes, common cathode LED digital tube.
• With TM1638 Chip, this module gather more than three common SCM peripheral circuits.
• The advantage is only three IO ports will be occupied when it drives.
• SCM doesn't need to work for scaning display and key scaning.
• It only need to read the relevant register to send display data or test button so it save MCU resources effectively.
• Keys are sensitive and display effectively.

Package Includes:

• 1 x 8-Bit LED 8-Bit Digital Tube 8-Bit Key TM1638 module for AVR Arduino ARM STM32