This is battery level display module based on battery style digital tube LED. The 5 - segment LED inside is green light and the frame is red light. There is driver chip TM1651 onboard, so the control interface is simple, just two signal lines and VCC / GND. It can be used to display the battery power.
Features:
- Compatible with Arduino UNO R3;
- 8 adjustable luminance levels;
- Working voltage: 3.3-5.5VDC;
- Working current: 80mA(MAX);
- Logic level voltage: 3.3V / 5V;