I did not find any, however there is some example arduino code here:
https://github.com/m5stack/M5Stack/blob/master/examples/Unit/RF433/RF433.ino
Not very amateur friendly if you want to use that though.
I did not find any, however there is some example arduino code here:
https://github.com/m5stack/M5Stack/blob/master/examples/Unit/RF433/RF433.ino
Not very amateur friendly if you want to use that though.