The library is ready to use with the Arduino or RTOS ESP-IDF framework, but should work with others as well. To work with this library you need an i2c bus driver, for Arduino and RTOS you can find it ...
This project is an effort to improve the firmware of the Radtel RT-890 in terms of features and radio performance. It is based on DualTachyon's OEFW which is reversed from the original Radtel 1.34 ...