MicroPython Forum (Archive)

First you should try to examine the signal. An oscilloscope would be needed for that. Also Tones are no simple DC Voltage. It‘s AC. So depending on the moment of measuring you can get 5V, 0V or maybe -5V. As an alternative you can get simple chinese mikrophone moduls. They have an A0 analog AC Outpu...

Micropython has a filesystem in flash, so just use normal file operations to save data.

According to the Speaker in this Video (Christine Spindler) Pyboard-D is in the final testing and should be out in the next two weeks...

Please note that the CCC does not particular like to support Youtube. This is the link directly to the talk: https://media.ccc.de/v/35c3-9648-microp ... ontrollers

Thanks a lot. Now I'm seeing much clearer :-) I think the conclusion for me is that you can't really rely on the Interrupt of the ESP8266 to be very accurate/fast. But for my purpose they are working well enough (A timing of 1 ms would be 360 kW which I will never use in my flat) so I don't need to ...

Of course, my code to count the Pulses from a Power Meter is no secret, if it helps: https://github.com/ThomasChr/ESP8266-re ... er/main.py

In my case I‘m usig a Pin Change Interrupt. Does anyone know what the advantages and disadvantages of a hard ISR are?

Hello Forum, I've got an ESP8266 with Micropython which is counting pulses. The pulses are count in an Interrupt Handler. They can be many and eventually they could be more than sys.maxize (2147483647). In the micropython manual I can read that: MicroPython supports integers of arbitrary precision. ...

On Micropython there is no OS. What do you expect?

I found the first change. Seems that they cut the cost on the voltage regulator. My pyboard uses 5 Microamps in pyb.standby() - the chinese Board uses 50 Microamps.