Arduino: API to set RF TX Power Level

Created on 9 Sep 2015 · 5Comments · Source: esp8266/Arduino

I have looked around and can not find an API to set the Wifi RF TX Power Level. According to this post, the SDK esp_iot_sdk_v1.1.0_15_05_22 added this capability.

Is this already exposed someplace, or can this API be exposed? I have not been able to locate it in any documentation here.

http://www.esp8266.com/viewtopic.php?f=13&t=3072&sid=39bf5cb2ff5f17bbc6faf06503064cc3&start=5#p18209

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Source

Humancell

Most helpful comment

use WiFI.setOutputPower
https://github.com/esp8266/Arduino/blob/41074245a8d3029270622a8b489d53fdfedb2a22/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp#L169-L179

chaeplin on 28 Jan 2016

👍3

All 5 comments

Any update? i am looking for the same thing. Also wondering what is the default max power in case the set api is not explicitly called?

avivgr on 5 Dec 2015

use WiFI.setOutputPower
https://github.com/esp8266/Arduino/blob/41074245a8d3029270622a8b489d53fdfedb2a22/libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp#L169-L179

chaeplin on 28 Jan 2016

👍3

What happens if you never call setOutputPower? What is the default transmission power set?

babylonx on 10 Jul 2016

@babylonx
from measurements I can tell that it sets to maximum TX power.
I see 19dBm difference between default and using setOutputPower(0)

Stefano-Orsolini on 9 Aug 2016

The NONOS SDK api reference for SDK v2.1.0 explains that the function takes values in the range [0-82], which means the argument for our wrapper is in the range [0-20.5].
Closing.