20pcs 0.56 Inch Digital Tube DIY Kit TM1650 Four-digit LED Digital Tube Display Module For

Description 1 Use TM1650 compatible with AIP650 digital tube driver chip support 8 level brightness adjustment working voltage 3 3V 5 5V2 IIC interface only need 2 ordinary IO can drive do not need to repeat scanning of MCU saving MCU resources 3 4 digit 0 56 inch red common negative digital tube with decimal point 4 0 56 inch with four 2mm inner diameter positioning holes 5 Power supply with anti reverse connection6 Size 6 0 2 2 cm Package included 20 x 0 56 Inch Digital Tube DIY Kit