Adafruit 1052 Small 1.2″ 8×8 Round LED Matrix with I2C Backpack Blue – Rapid Online – Rapid Electronics Ltd.

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Adafruit Small 1.2″ 8×8 Round LED Matrix with I2C Backpacks – Adafruit 1052, These Adafruit Round Blue LED 1.2in. 8×8 Matrix Displays with I2C save your microcontroller losing all its GPIOs to 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 electronic jewellery, animated signs and badges or VU meters suddenly become much simpler. Alternatively, we supply Adafruit 4-digit 7-segment displays which also have I2C backpacks, great for meters, clocks etc.Each board has address selection jumpers allowing you to have 4 x of these displays attached to a single I2C bus. There are I2C commands to write to a pixel and to adjust the brightness. As you would expect, Adafruit have also published a free library and 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 1052 Small 1.2″ 8×8 Round LED Matrix with I2C Backpack Blue