No-std driver for the Adafrui NeoTrellis board.
This crate gives access to the leds (pixels) and butons (keypad) of theNeoTrellis.
It communicates with the NeoTrellis using the embedded-hal blocking I2C traits. This means that it should be compatible with any microcontroller that has an I2C driver implementing the embedded-hal traits. This includes the RaspberryPi when using the rphal crate.