TM1638 8X Green Light Digital Tube + 8X Key + 8X Double Color LED Module

Product Description: 1, using the TM1638 digital tube driver chip 2, only three ordinary IO to drive, no mcu scan, save mcu resources 3, with eight 8-segment digits (including decimal point), eight-color led and eight key input, can be extended to 3 * 8 buttons, and led digital tube can be individually controlled 4, 8 brightness adjustment support, digital and led the same brightness 5, supports cascading up to six identical modules 6, with eight digital tube, led eight color and eight key input, it can be extended to 3 * 8 buttons (does not provide technical support, see the manual on their own extension), and led digital tube can be individually controlled 7, size :10.0 * 5.1 (cm)