MicroPython Forum (Archive)

The fs on Micropython on the esp8266 is a FAT filesystem, it's not flash-friendly, in particular, it often overwrites the blocks which contain the directory entries and FATs, which is very bad for flash. Having said that, provide you don't abuse it too much, it should be ok. I have bricked (so far) ...

There should be some code to detect the flash size, which should not try to put a filesystem on the device if there isn't enough space. I'm pretty sure I've seen this code, browsing the source. If it's creating this error, than that presumably means it's not working, and you should raise a bug. I do...

I wouldn't recommend using Micropython instead of Cpython if you can run Cpython. There are plenty of opportunities to reduce the memory and disc footprint of CPython at compile-time, by disabling unused features. Even with almost everything disabled, it will still be much bigger than Micropython, b...

Is it possible to use the 2nd UART (UART1) ? Or does that send garbage at startup too?

Mark

If you're happy to do busy-waiting, you can just sit in a loop and count pulses. This is not ideal though, as you might miss pulses if they're too fast or the CPU needs to do something else. As you're presumably aware, the esp8266 has other tasks to do on its cpu including handling wifi interrupts. ...

I'm opportunistically trying to connect to open access-points to send telemetry back to my server through DNS tunnelling. It sounds strange, but it works.

I'm working on a modified version of connect() which does not save to flash (calling wifi_station_set_config_current in the API)

Raspberry Pi is not a microcontroller. While the RaspberryPi is great, it is not a microcontroller, this means it is a self-hosting system - you can compile, build etc, stuff on the Pi itself without another machine. This is not true of the other boards, even if it's technically possible to edit the...

Telnet is probably do-able with the current infrastructure in Micropython. The existing remote shell is not too different from telnet.

It is looking increasingly like I've managed to wear out the flash at address 0x3c0000. This is far beyond where the Micropython or any other firmware image exists, actually it's close to the end of the flash. I suspect it's the area where the firmware stores the wifi configuration /accesspoint data...

Ok, this is what happens: * I have a NodeMCU type development board, similar to this one https://www.gitbook.com/book/smartarduino/user-manual-for-esp-12e-devkit/details * I have previously flashed with Micropython - lots of times - and I've had software running on it which uses the filesystem. (it ...