8-Bit Digital LED TM1638 Key Display Module for Arduino is a seven segment display module with 8 numeric characters, complete with 8 LED indicators and 8 tact switch / push button, with TM1638 controller IC, very useful as a user input / output module for your minsys (suitable for Arduino, Raspberry pi, etc.) Specifications: Including the following resources: 1. 8 key2. 8 common paint LEDs
Driver Chip: MAX 7219, Input Voltage: 3.7 to 5.3 V, Input Current: 320 mA, Display Dimensions: 32 x 32 x 6 (L x W x H) mm, PCB Dimensions: 128×32 (L x W) mm
