About This

Adapts TM1638 digital tube drive chip. Common anode LED digital tube.
Need three common IO and could drive, no need MCU scan, save MCU sources.
Type:Arduino Compatible Module .Size:70*70mm/2.76*2.76in
With 8 8digital tube (including decimal point). 16 buttons. Support 8 degree brightness adjustment.
Package Included: 2 x TM1638 LED Display 8Bit Digital Tube Module 16 Keys Keyboard for Arduino DIY

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