MicroPython Forum (Archive)

Thanks for your answers, I've made a typo, the clock is rated at 13_us (77_kHz) But it's quite different from one device to another. I've made some test to check if I would be able to manage the dial gauge case (400_us) from machine import Pin import time pin=Pin(12) while True: pin.value() print(ti...

Hi, I'm willing to read data from Chinese digital dial gauge. This have been successfully been done with arduino microcontroller. Here are some references: https://www.davidpilling.com/wiki/index.php/DialGauge http://www.shumatech.com/support/chinese_scales.htm https://web.archive.org/web/2018073019...

Hello, I try to get data from PZEM-004T (V4) AC multimeter from a ESP32 with latest MP firmware. It looks like there I face an issue with UART at the hardware level, because the red led on the PZEM-004T doesn't behave the same when I plug it to my computeur. To adapt UART voltage level I use a level...

Nice,
Could you give some more details ?
What is the swiches for?
Does they allow to switch of the USB/TTL device to save power when not in use ?
It would be a nice feature according to me.

Hello,

Can I plug directly a 5V solar cell (<=500mA) to the microusb port of the LOLIN32 board ?

https://www.aliexpress.com/item/3300917 ... 2e0eV4oz5b

The battery port will be pluged to a Li-ion battery (18650)

Hello,

There is a PR pending to add hardware counter device support of the ESP32 to micropython:

https://github.com/micropython/micropython/pull/5496

Your post show that there is interest in hardware counter with esp32.

Hi elliotwoods,

Did you complete the python side ?

I think you are really close to bring this functionality to MP.
If you can post it here, maybe someone (maybe me) would be able to implement it in esp32 branch in time for 2.0 release ?

Anyhow, thanks to have shared.

I have made some tests, and confirm it save some RAM : import gc import micropython class MyClass(object): #__slots__ = ['name', 'identifier'] def __init__(self, name, identifier): self.name = name self.identifier = identifier def MyPrint(self): print('{}:{}'.format(self.name,self.identifier)) gc.co...

Better here:

https://docs.micropython.org/en/latest/ ... ained.html

in RAM section

Interesting,

Shouldn't it be mentioned in the docs (maybe in the Maximising Micropython Speed) ?

As I have I understand it could help save RAM. It not exactly speed optimisation, but it could help as I have frequently hit the RAM limit...

Am I wrong ?