MicroPython Forum (Archive)

Hello, Is there any way to download files from web by chunks? In normal python, you can use requests.get(url, stream=True) and then you iterate over that response chunk by chunk. Is there any way to do the same in micropython, or you can only downlaod whole file at once? urequests library seems to a...

Ok, so I did some testing, and I found that my device can see the 12 and 13 channels, but it can't connect to them (it just tries without any result). Is there something that's not allowing it to connect? Or is it intended?

I made a mistake, I live in EU, so shouldn't there would be possible?

pythoncoder wrote: ↑

Mon Apr 26, 2021 5:24 pm

Permitted channels vary between countries. For example if your ESP32 has been localised for the USA it won't see channels 12 or 13 which are not permitted there. Japan has an extra channel 14.

Hello, I live in usa, so shouldn't the microcontroller see that (13th) channel? Thank you!

Hello, when scanning wifi networks, I can't seem to find networks, that are in 13 channel. Is this normal, and is it possible to fix that?
Thanks for any help.

I tested the microcontroller, if it sends and receives any data, and it does. I tested it with seperate computer, which was kinda wired to the wires, going from my rs485, which is connected to my sensor, but I can't figure a way to read the data from my meter.

I added line to ouput my created modbus, and it doesn't show my assigned tx/rx pins. Am I doing something wrong here? Also, on the manufacturer website of the electricity consumption meter, it writes about command codes, and command code 3 "Registers values reading". Do I have to pass that command s...

a) there is no uart.deinit() method for ESP8266 b) you call machine.UART() instead UART() when initing the uart again. Both would be visible in the webrepl, which continues to work when you detach REPL from UART Changed code: from machine import Pin, UART import utime import uos def test(): #modbus...

With the ESP8266 you cannot assign UART to different pins. You have to use GPIO1 and 3. While that might not be a problem for TX in your case, RX may be hard, since it is connected on many boards to the USB/UART bridge. On some boards lime the Wemos D1 there is a resistor between the ESP8266 and th...

UART1 has no RX part, only TX. For a full duplex UART communication you have to use UART0. For that, you can detach UART0 from the REPL prompt using uos.dupterm() and use REPL with the WiFi webrepl app. See http://docs.micropython.org/en/latest/esp8266/quickref.html?highlight=dupterm Note about usi...