This module is ideally suited to display levels of battery charge, water tanks, etc…!

The Whadda bar graph module allows any microcontroller board to easily drive a 10-segment blue LED bar graph. The module uses a TM1651 LED driver chip to drive the individual LED segments, which can be controlled by using only 2 GPIO pins of a microcontroller (such as an Arduino® compatible board). It should be noted that some of the LED-segments are wired together, resulting in 8 different controllable states of the LED bar graph.

Features

• drive a 10-segment blue LED bar graph
• controllable by 2 GPIO pins

Specifications

• supply voltage: 3,3 - 5 V DC
• color: blue
• driver chip : TM1651
• number of LED segments: 10
• number of level indicators: 8
• interface: 2 wire serial