Just Set Tx Power?

[awneil]

I just want to globally set the power level, and forget about it.

I have seen this post, and it still seems unclear how to do this - or if it's even possible.

Is there a way that I can simply set this once at startup, and then it will never change - whether advertising, or connected, or whatever?

If so, how?

Peripheral and Central.

Not Mesh.

nRF52 SDK 15.0.0 SoftDevices S112 (Peripheral) and S132 (Central).

[Einar Thorsrud]

Hi,

The sd_ble_gap_tx_power_set() function was updated in version 6.0.0 of the SoftDevices, and now allows you to set the TX power per connection. This does not mean that you have to set it per connection, though.

As a peripheral, any connection inherits the TX power that was set for the advertising role (BLE_GAP_TX_POWER_ROLE_ADV), so you only need to set it once before the first connection is made to get the same behavior as before. For the central it is the same, you only need to set it once with the scanner/initiator role (BLE_GAP_TX_POWER_ROLE_SCAN_INIT), and then this is used for the connection as well unless you make a new call to sd_ble_gap_tx_power_set() with the BLE_GAP_TX_POWER_ROLE_CONN and a connection handle.

[awneil]

Einar Thorsrud said:

For the central it is the same, you only need to set it once with the scanner/initiator role (BLE_GAP_TX_POWER_ROLE_SCAN_INIT),

So, in the Central, I just need to do that before my first call to sd_ble_gap_scan_start() ?