Hardcoding BLE TX Power

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forum_user
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Joined: Thu Jan 30, 2020 11:14 pm

Hardcoding BLE TX Power

Post by forum_user » Mon Feb 10, 2020 6:43 pm

I'm interested in hardcoding the maximum supported TX power value for BLE scans for hardware testing. According to a recent post, +9db is the max supported value via the esp-idf API:

https://github.com/espressif/esp-idf/is ... -493992705

It seems this has been briefly discussed previously and is a planned feature:

https://github.com/micropython/micropyt ... -503046267
https://github.com/micropython/micropyt ... -540526800

I don't need to modify it on the fly, so hardcoding this prior to firmware compilation is fine. Could anyone give me some basic guidance on how to achieve this?

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jimmo
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Re: Hardcoding BLE TX Power

Post by jimmo » Sat Feb 15, 2020 5:11 am

I think you should be able to add the call to esp_ble_tx_power_set in ports/esp32/nimble.c / mp_bluetooth_nimble_port_preinit()

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