TM1637 For Arduino LED Display Module 4 Bits Digital Tube With Clock Display
Uses two 595-driven digital control, 3-way needed microcontroller IO port, according to the digital display dynamic scanning principle
Wide Operating Voltage: 3.3V to 5V
Digital Tube Model: 0.36 4 common anode
PCB Plate Size: 46X22X10mm/1.81*0.86*0.39"