10-Digit 7-segment Tube LED Battery Level Display Module for Electronic Bricks
This is a 10-segment LED display module with LED controller chip:MY9221. It can be used as an indicatorsuch as the physical parameters of the battery life voltage sound. 10 LED: a red a yellow a dark green and seven green. Different colors corresponding to different strength. Module uses 4pin Grove interfaces you can easily connect it with Arduino With some extend sensors you can make a lot of interesting applications. Input voltage: 3.3V/5V Each LED can be controlled independently.