BLE TX POWER LEVEL ADJUST

jp.leriche@gmail.com
Posts: 2
Joined: Fri Jul 03, 2020 9:36 am

BLE TX POWER LEVEL ADJUST

Postby jp.leriche@gmail.com » Fri Jul 03, 2020 10:02 am

No matter what I do, I have been through every discussion on this forum, I can not increase the TX power level on my ESP32-Wroom 32D.
I do not need to connect, just transmit advertising data, but the maximum distance I get is about 4m!
Can someone please provide more information and maybe a working example?

ESP_Sprite
Posts: 3720
Joined: Thu Nov 26, 2015 4:08 am

Re: BLE TX POWER LEVEL ADJUST

Postby ESP_Sprite » Fri Jul 03, 2020 12:10 pm

Why do you think the issue is your Tx level? What hardware are you running on? Are you sure you're not shielding the antenna or something?

jp.leriche@gmail.com
Posts: 2
Joined: Fri Jul 03, 2020 9:36 am

Re: BLE TX POWER LEVEL ADJUST

Postby jp.leriche@gmail.com » Fri Jul 03, 2020 12:30 pm

Because no matter what TX power level setting I enter, the power level stays the same as the default.
Definitely not shielded.
Using the ESP32-WROOM-32D and NRF BLE App to check the reception.

hhelmbold
Posts: 7
Joined: Wed May 27, 2020 3:12 pm

Re: BLE TX POWER LEVEL ADJUST

Postby hhelmbold » Sat Jul 04, 2020 7:46 am

Can you give a bit more info on the "power level" you referring to? Is this the baud rate? I don't have enough info but I believe the voltage is more the issue here. Assuming you using the ESP32 directly you have 3.3V - The max distance on 5V is 5m with a high quality cable (using USB as reference), so 4m sounds correct with 3.3V. I am no pro on this but this is just my first thoughts. Maybe something like a Logic Level Converter may help?

ESP_Sprite
Posts: 3720
Joined: Thu Nov 26, 2015 4:08 am

Re: BLE TX POWER LEVEL ADJUST

Postby ESP_Sprite » Sat Jul 04, 2020 8:03 am

@hhelmbold: BLE is Bluetooth Low Energy, so no cables involved.

hhelmbold
Posts: 7
Joined: Wed May 27, 2020 3:12 pm

Re: BLE TX POWER LEVEL ADJUST

Postby hhelmbold » Sat Jul 04, 2020 11:27 am

OH!!! LOL! And so I learn :lol: I am still trying to get cables to work, nevermind wireless

chegewara
Posts: 1174
Joined: Wed Jun 14, 2017 9:00 pm

Re: BLE TX POWER LEVEL ADJUST

Postby chegewara » Sun Jul 05, 2020 9:13 am

Maybe here you can find some answers:
https://github.com/espressif/esp-idf/issues/2390

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