Adafruit 880 0.56" 4-Digit 7-Segment Display With I2C Backpack Green

Product Description

Adafruit 0.56" 4-Digit 7-Segment Displays with I2C Backpack
- Adafruit 880, These Adafruit Green 4-Digit 7-Segment Displays take the pain out of using 7-segment displays by including an I2C backpack to do the constant current driving & multiplexing. Connecting displays like this can be quite expensive in precious GPIO pins, but with the added backpack they only use the 2 x I2C signals plus 2 x power connections. They are great for microcontrollers with limited outputs such as the Adafruit Trinkets which only have 5 x IO pins. They're also handy for grown up boards like the Raspberry Pi which have better things to do with their time than multiplex LEDs. Applications such as a voltmeter (please be careful), temperature gauge or clock suddenly become much simpler. Alternatively, we supply Adafruit 8x 8 matrix displays which also have I2C backpacks, great for jewellery, animated displays etc.. Each board has address selection jumpers allowing you to have 8 x of these displays attached to a single I2C bus. There are I2C commands to write to all four digits, just one digit, adjust the brightness, etc. As you would expect Adafruit have also published a free library & a tutorial to get you off to a quick start. Supplied with a 4-way strip of header pins for you to solder on as required for your project. Adafruit 880 0.56" 4-Digit 7-Segment Display with I2C Backpack Green