The The MikroElektronika's Bar Graph 4 Click is a compact add-on board that contains four green four-segment LED bar graph displays. This board features the TLC59283, a 16-channel, constant-current sink light emitting diode LED driver from Texas Instruments. Depending on the operating VCC, each channel can be individually controlled with a simple SPI serial communications protocol compatible with 3.3V or 5V logic levels. It also comes with a constant-current value of all 16 channels set by a single resistor and one GPIO pin used to turn off all outputs during Power-On and output data latching to prevent unwanted image displays during these times. This Click board is suitable for creating various types of VU meters, status indicators, different types of counters, and similar devices.

Each channel individually controlled
Output force off pin
Four green four segment LED bar graph displays
Bright uniform light emitting areas