SpeedData Arduino Library
A simple library for getting data from the Speeduino secondary interface. Has functions for getting air fuel ratio, EGO, Loops per second, or any other data See https://wiki.speeduino.com/en/Secondary_Serial_IO_interface for information on data available
Tested on an ESP32, but should work on any platform. Should work with any type of serial interface - hardware, software, bluetooth, etc.