TM1638 3Wire 16 Keys 8 Bits Keyboard Buttons Display Module Digital Tube Board Scan And Key LED For Arduino

Specifications: - need 3-wire control. - Adapts TM1638 digital tube drive . Common anode LED digital tube. - need three common IO and could drive, no need MCU scan, save MCU sources. - With 8 8digital tube (including decimal point). - 2*8 16 buttons. - 8 degree brightness adjustment. - Weight:34 g - Size:68mmx68mm Package Include: 1 x TM1638 16 Buttons Display Module








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