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

Specifications Only need 3 wire control Adapts TM1638 digital tube drive chip Common anode LED digital tube Only 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 Support 8 degree brightness adjustment Weight 34 g Size 68mmx68mmPackage Include 1 x TM1638 16 Buttons Display Module