TM1638 LED Module 8 Digit 8 Push Button Switch 8 Bit Digital LED Tube Can be Cascaded

More document click to download TM1638Features 1 Use AIP1638 compatible with TM1638 digital tube driver chip2 Only need 3 ordinary IO to drive no need for mcu scanning save mcu resources3 With 8 8 segment digital tubes including decimal point the size of the digital tube is 0 56 red or green common negative digital tube4 Support 8 levels of brightness adjustment digital tube and LED use the same brightness5 Supports cascading up to 6 4 modules with the same driver chip6 Digital tube module size 10 0 5 1 cm Package Included 1 x TM1638 LED Module 8 Digit 8 Push Button Switch Module1 x Cable