Adafruit Trellis Monochrome Driver PCB for 4x4 Keypad & 3mm LEDs Category_Gearmotors/Miniature There is an onboard 3

There is an onboard 3

Note: This driver needs to be enabled and configured through its SPI interface on power up

two RTK Expresses can be used to create an RTK system capable of 14mm horizontal positional accuracy

Arduino libraries and sample sketches are available for quickly getting a Zumo robot up and running

Adafruit Trellis Monochrome Driver PCB for 4x4 Keypad & 3mm LEDs Category_Gearmotors/Miniature There is an onboard 3This item is just for the Trellis driver PCB assembly: LEDs and buttons not included. Trellis is an open source backlight keypad driver system. It is easy to use, works with any 3mm LEDs and eight tiles can be tiled together on a shared I2C bus. This PCB is specially made to match the Adafruit 4x4 elastomer keypad. Each Trellis PCB has 4x4 pads and 4x4 matching spots for 3mm LEDs. The on board circuitry handles the background key presses and LED