This is a port of the [ambient-attx4 module](https://github.com/tessel/ambient-attx4). It uses SPI. This module is a bit tricky: it uses a [custom protocol](https://github.com/tessel/attiny-common) to talk to the onboard ATTiny.
This is a port of the ambient-attx4 module. It uses SPI.
This module is a bit tricky: it uses a custom protocol to talk to the onboard ATTiny.