So, to me it seems the RX on the Fipy is not working, also explaining why the firmware update does not work, but it does give output on the TX (like you mention, it brings up the micropython promt, but does not respond). I must say its not a common issue (Ive never seen it like this before). can you verify for me the RX pin on the Fipy (that should be P1) is physically connected to the PIC (sorry, I dont have a schematic on me at this time, that will be friday soonest)
I have just started with pycom devices and I am having problems sending data to pybytes over LTE (getting the "send message" confirmed but without reception of the data at pybytes). This happens only at certain places in my house, so I am suspecting that signal quality plays a role here.
In order to investigate this I have build a simple "signal quality detector" utility with the FiPy. It blinks green when the signal is like a reference signal which can be calibrated at a given location. When the signal quality drops, the led turns to green/blue tones, when the quality goes up yellow/red tones are displayed.
This tool might prove useful for checking signal availability, for placing your antenna in/on the device, for comparing antennas etc. Give it a try: https://github.com/clausdenk/fipy-ltesignal
PD. Great little devices!
I answers my question by myself:
Until now, I haven't recognized rshell. I can do the job by using "esptool" and "rshell" from within a python script. So I can connect to the api of the LoRaWAN server to register the devices, creating the config.json an copying all the stuff into /flash.
Will take a closer look. Need to translate. To help others too, English would help. I see the time to awake and sleep again a great to be a challenge to Pycom products.
I have one brand device I have dissected and tested, it’s complete cycle is barely 1.01 seconds. SF7BW127 with only 2 spikes of current worth noting for that duration. Also, newer processes have deep sleep down to 0.1 microamps, a significant factor delta to 25.4 microamps exhibited by LoPy L01.
Anyway we continue to innovate.