MicroPython Forum

In days of old when Wi-Fi wasn't invented and nor were PIR detectors burglar alarms had reed switches on doors and mechanical vibration switches on windows. A vibration switch could wake up a device from sleep mode.

You could try adding solder bumps to the pads like a BFA. Try to get a lump of solder 1mm high on each pad of the WSON. Then tin the PCB pads with solder. Use liquid or paste flux on the pads and place the chip. With a very fine tip melt the solder bumps and that will flow into the pads and bond. Th...

You need to install the full MSYS2, not just make. There are various utils like SED that are needed. You need to set the MSYS2 path before windows\system32 because it has to replace some Windows utilities. I find it easier to use WSL for building MicroPython with Windows tools for managing source co...

You can add UART REPL in mpconfigport.h. See NUCLEO_F411RE port for an example. For Linux use rshell to copy scripts to the flash. I use Thonny on Windows. There are discussions on the forum about other IDEs and plugins. For production you can use JTAG to read out a complete flash image and clone it...

Have a look at uasyncio cooperative multi-tasking and Peter Hinch's tutorials. There is lots of discussion on the forum and GitHub

You should be able to swap antennae. They are all 50 ohm and same frequency. I have used quite a few different types. If you want to compare antennae find an app that displays all satellites in view and run both antennae at the same time using two modules. Look at the number of satellites found and ...

Edit the pin assignment in mpconfigboard.h for your port and rebuild MicroPython

What i still miss: automatic sync files on device <-> local I actually use Thonny to avoid writing to local flash. I have multiple test scripts with different names that Thonny lets me run in RAM without renaming them to main.py. Only when one is tested do I download it as main.py. Also some of my ...

If the STBY is high or floating the device will sleep until it sees a dominant star on the bus. This means the transceiver at the listening end will wake up after a delay. The sending end will not wake up if you want to send. You need to either tie STBY low or drive it low before sending. It is also...

If you can't get the green LED to flash you have a more fundamental problem than no REPL. I would review the driver and HAL interface changes you made for the MCU. On one port I did the interrupt vector table was different to most and I have also found the occassional bug in the STM32hal libraries. ...