From 9c166ebefcb5cb7d794ad76019b4d225bd00a435 Mon Sep 17 00:00:00 2001
From: liquidraver <504870+liquidraver@users.noreply.github.com>
Date: Mon, 15 Jun 2026 11:14:16 +0200
Subject: [PATCH] revert BT back to 4dBm (no change in range)

---
 zephcore/boards/common/nrf52_common.conf  | 4 ++--
 zephcore/boards/common/nrf54l_common.conf | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/zephcore/boards/common/nrf52_common.conf b/zephcore/boards/common/nrf52_common.conf
index 1d59be0..588cd07 100644
--- a/zephcore/boards/common/nrf52_common.conf
+++ b/zephcore/boards/common/nrf52_common.conf
@@ -19,8 +19,8 @@ CONFIG_CDC_ACM_SERIAL_INITIALIZE_AT_BOOT=n
 CONFIG_UART_LINE_CTRL=y
 
 # ========== BLE: nRF52-specific controller settings ==========
-# TX power: +8 dBm (max for nRF52840 high-power radio front-end)
-CONFIG_BT_CTLR_TX_PWR_PLUS_8=y
+# TX power: +4 dBm (Zephyr open-source BLE controller)
+CONFIG_BT_CTLR_TX_PWR_PLUS_4=y
 
 # Data Length Extension — controller-side max (host-side in zephcore_common.conf)
 CONFIG_BT_CTLR_DATA_LENGTH_MAX=251
diff --git a/zephcore/boards/common/nrf54l_common.conf b/zephcore/boards/common/nrf54l_common.conf
index 0542227..67e5989 100644
--- a/zephcore/boards/common/nrf54l_common.conf
+++ b/zephcore/boards/common/nrf54l_common.conf
@@ -14,8 +14,8 @@
 CONFIG_CLOCK_CONTROL_NRF_HSFLL_LOCAL_REQ_LOW_FREQ=y
 
 # ========== BLE: nRF54L-specific controller settings ==========
-# TX power: +8 dBm (max — same open-source BLE controller as nRF52)
-CONFIG_BT_CTLR_TX_PWR_PLUS_8=y
+# TX power: +4 dBm (same open-source BLE controller as nRF52)
+CONFIG_BT_CTLR_TX_PWR_PLUS_4=y
 
 # Data Length Extension — controller-side max
 CONFIG_BT_CTLR_DATA_LENGTH_MAX=251