Hi everybody,

I have been following this forum for quite a while now and it’s great to see how many designers are working with cellular IoT. We had in the past created some designs based on the PyCOM GPy as it was one of the only solutions that was small and fully certified. When the GPy became EOL we were left in the dark and took on the challenge to create a pin and software compatible upgrade. We have called our module Walter and it has the following functionality:

Ultra low 9.8uA deep sleep current in PSM mode Open source and software support for ESP-IDF, Arduino, Micropython and Toit LTE-M, NB-IoT (3GPP rel. 14) GNSS (GPS + GLONASS) WiFi and BLE CE, UKCA, FCC, IC and RCM certifications

I hope this might be of interest to you, please do not hesitate to ask questions. You can read everything on our Crowd Supply page: https://www.crowdsupply.com/dptechnics/walter

Kind regards,