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ESP32 wroom32 Bluetooth dBm

louiselectron

Jan 29, 2023
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Jan 29, 2023
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Hi

I am trying to find out what the default dBm is of the esp32 wroom ble.
From research it seems it's only possible to find this info or change the transmitting power using ESF IDF and can't be done using Arduino IDE.
I want to get max power from my esp32 wroom to extend Bluetooth range.
 

Delta Prime

Jul 29, 2020
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Look at page 12 there's no default .it's normally a range (minimum, typical, maximum) Max transmitting power is +10 dBm that is the Gain of the transmit amplifiers output with reference to its input which is one milliwatt. That's what the m stands for in dBm. And this all depends type of Wi-Fi if you notice it is also referred to as 802.11 a, b, c, d, etc.
And to extend your range involves many factors you notice it operates between 2.4 and 2.5 gigahertz approximately. And that frequency can be absorbed,reflected and can interfere with other devices depending on your environment. I hope this helps in your research.
ESP32-WROOM-32E - FCC Report https://fcc.report/FCC-ID/2AC7Z-ESP32WROOM32E/4684794.pdf
 

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Delta Prime

Jul 29, 2020
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seems it's only possible to find this info or change the transmitting power using ESF IDF and can't be done using Arduino IDE.
You could use repeaters. Or external power amplifiers DIY or buy off the shelf that goes for any adreno or raspberry pi
But you wouldn't want the FCC knocking on your door.
That's going to the dark side , I did read somewhere the dark side has cookies. Yummy!
 

bidrohini

Feb 1, 2023
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You can post your question to ESP32 forum if you already have not.
 
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