Description:
Make a small linear display with multiple colors using this elegant bi-color LED bargraph. Only 1.2" long, it is quite visible but not so large it wont plug into a breadboard! 24 LEDs are contained in the plastic body, Per Bargraph there are 12 red and 12 green bars. Every bar has two LEDs inside so you can have it display red, green, yellow or with fast multiplexing any color in between. This display is bright, beautiful and funky with nice diffused rectangular lenses for a striking look. There are 14 pins, 7 on each side, with 0.1" spacing so you can easily plug it into a breadboard with plenty of space for wiring left over.

Since the display is multiplexed we suggest using 3 NPN transistors to drive the cathodes with microcontroller pins and then a 74HC595 to drive the 8 anodes. We also have the backpack to easily drive these two bargraphs using I2C from your microcontroller, you will find them under the Related Products Tab.

Specifications:

• Dimensions: 10mm x 30mm
• Thickness: 7mm
• Spacing: 0.1" (breadboard friendly)

Resources:

Lots more details including dimensions, pinouts, etc in the datasheet, this is the Common-Cathode model KWL-R1230CDUGB

tutorials introducing matrices