MicroPython Forum (Archive)

when I do this in REPL : >>>import uasyncio >>>loop = uasyncio.get_event_loop() >>> loop. <--press Tab--> __init__ remove_reader wait __qualname__ add_writer remove_writer add_reader __module__ It only shown above method? unlike usual upy modules, I've got all it class member.

pythoncoder wrote: ↑

Tue Oct 17, 2017 9:49 am

I think threading is fairly RAM intensive. If you can tolerate cooperative scheduling uasyncio is highly efficient: I have tested with hundreds of coroutines.

I'll stick with _thread module for now. But I'll take a look later. Thanks.

I am using stmhal port, and been using _thread module. Is the thread creation limited at 8 threads only? because when I try to start 9th thread it raise MemoryError exception : Traceback (most recent call last): File "main.py", line 221, in <module> File "main.py", line 219, in main File "main.py", ...

I am trying to return a bytearray from C code as below : STATIC mp_obj_t prog_getAllData(void) { return mp_obj_new_bytearray(sizeof(dataDI.bytes), (mp_obj_t*)&dataDI.bytes); } STATIC MP_DEFINE_CONST_FUN_OBJ_0(prog_getAllData_obj, prog_getAllData); when I used it as : import prog prog.getAllData() it...

Yes, the meters at the pump station measure consumption of many customers. And yes, there are always discrepancies — those are included in the budget, and ignored as long as they are not too big. But as soon as someone starts stealing water (or there is some other problem causing the discrepancy), ...

Based on the discussion above, I am agreed that hardware level protection is a "killer" feature. There won't be any discussion forward if it is implemented. But, as a *cost effective* and *good enough* solution, provide that the device has : - MCU - Battery - Switch - Codes on external storage Then ...

But then you are not selling water meters. I can go to a shop and buy a water meter, open it, look inside, disassemble it, reassemble again, etc., and there is nothing that prevents me from doing that with the property I have bought. However, I can't use that to bill my water consumption, because t...

In that case I would recommend re-flashing the original firmware every time the item is returned before renting it again. How can re-flashing the original firmware solve the problem? in above example even (B) restore original firmware so they won't get caught by (A). I'm sorry, I didn't read your d...

A forum search will show that this topic has been extensively discussed. IIRC the conclusion was that the best that can be done is to implement the application as frozen bytecode stored in the device's Flash memory. If an attacker has physical access to the device there is little to stop them from ...

Another thing to consider is to remove unused python compile-able modules in /modules.