QUERY · ISSUE

ESP32 WiFi AP Channel Width

openby gigawattsopened 2020-05-13updated 2024-05-27

port-esp32

It seems when creating a WiFi AP, it defaults to a 40 MHz channel bandwidth.

import network
ap = network.WLAN(network.AP_IF)
ap.active(True)
ap.config(essid="TEST")
ap.config(authmode=0, channel=2)

In the above example, when viewing the broadcasted SSID with an Android app such as "Wifi Analyzer", shows "CH 2+6" and "2447 - 2407 = 40 MHz".

Is there a setting that can be changed to set this to 20 MHz, so it only uses one channel?

CANDIDATE · ISSUE

wifi channel selection in access point mode is ignored

closedby stanelieopened 2024-11-06updated 2024-11-28

bugport-esp32

Port, board and/or hardware

Waveshare ESP32-S3-ZERO

MicroPython version

MicroPython v1.24.0 on 2024-10-25; Generic ESP32S3 module with ESP32S3

Reproduction

Here is the code I use to test :

import network

wlan = network.WLAN(network.AP_IF)
wlan.active(True)
wlan.config(ssid='potato',password='password',channel=6)

while True
    print(wlan.config('channel'))

Expected behaviour

I expect this code to create an access point that will be on channel 6.

Observed behaviour

The returned print command indicates the channel is "1", and a wifi scanner also confirms the access point is being broadcasted on channel 1.

Additional Information

No response

Code of Conduct

Yes, I agree