@ahaw021 Do you host your library somewhere? I have been running a pure C LWM2M client on bare-metal ESP32 with satisfying results. The implementation is based on https://github.com/Openhab-Nodes/libWakaamaEmb with DTLS support. I need to explore the possibility to use MicroPython as a base for LWM2M Hackathon. Cheers!

@gas have done some initial testing what parts of LWM2M were you interested we are only implementing some parts of the protocol