diff --git a/firmware/Add-sensors-to-repeaters.md b/firmware/Add-sensors-to-repeaters.md
index ed01102..cbb7a2a 100644
--- a/firmware/Add-sensors-to-repeaters.md
+++ b/firmware/Add-sensors-to-repeaters.md
@@ -8,15 +8,23 @@ PowerSaving firmware has powersaving feature and additional features.
- **8.5mA** power consumption for all NRF52 boards.
## 1. Quick Wiring
-Ping us to add your boards in [Discussion](https://github.com/IoTThinks/EasySkyMesh/discussions/categories/ideas)
+For PowerSaving 13 and above, you can enter CLI "sensor" to check I2C and GPS Serial pins
+* PowerSaving 13+ automatically selects addresses for BME280/680/BMP280 for you.
+
+
+
+
+
+This is the wiring for some common boards:
+* PowerSaving 13+ automatically selects addresses 0x76 or 0x77 for BME280/680/BMP280 for you.
| Board | Wiring for I2C sensors | Notes |
| ------------- | ------------- | ------------- |
-| Heltec v3 / v4 / WSL3 | 3.3v => 3.3v
GND => GND
17 => SDA
18 => SCL
GND => SDO (BME280/680) | On Heltec v3, the GPIO17 and 18 are tiny pads in the middle of the board bottom.
Check the [notes](https://github.com/IoTThinks/EasySkyMesh/blob/main/firmware/Add-sensors-to-repeaters.md#heltec-v3) |
-| Heltec T114 | 3.3v => 3.3v
GND => GND
**P0.8** => SDA
**P.07** => SCL
GND => SDO (BME280/680)| |
-| RAK4631 | 3.3v => 3.3v
GND => GND
SDA => SDA
SCL => SCL
GND => SDO (BME280/680) | Both firmwares work |
-| Xiao NRF52 | 3.3v => 3.3v
GND => GND
D7 => SDA
D6 => SCL
GND => SDO (BME280/680) | Both firmwares work |
-| Xiao S3 | 3.3v => 3.3v
GND => GND
D4 => SDA
D5 => SCL
GND => SDO (BME280/680) | Both firmwares work |
+| Heltec v3 / v4 / WSL3 | 3.3v => 3.3v
GND => GND
17 => SDA
18 => SCL | The GPIO17 and 18 are tiny pads at bottom board.
Check the [notes](https://github.com/IoTThinks/EasySkyMesh/blob/main/firmware/Add-sensors-to-repeaters.md#heltec-v3)
Not required for PowerSaving 13+
GND => SDO (BME280/680) |
+| Heltec T114 | 3.3v => 3.3v
GND => GND
**P0.8** => SDA
**P.07** => SCL |
Not required for PowerSaving 13+
GND => SDO (BME280/680)|
+| RAK4631 | 3.3v => 3.3v
GND => GND
SDA => SDA
SCL => SCL | Not required for PowerSaving 13+
|
+| Xiao NRF52 | 3.3v => 3.3v
GND => GND
D7 => SDA
D6 => SCL | Not required for PowerSaving 13+
|
+| Xiao S3 | 3.3v => 3.3v
GND => GND
D4 => SDA
D5 => SCL | Not required for PowerSaving 13+
|
## 2. Boards
This section is for boards with some notes.
@@ -34,7 +42,7 @@ This is the list of sensors currently supported by official MeshCore firmware.
### 3.1 GPS
This is for GPS sensor.
- For RAK boards: PIN_GPS_TX => 15 and PIN_GPS_RX => 16
-- [To be updated] For other boards: PIN_GPS_TX => XX and PIN_GPS_RX => YY. This depends on boards.
+- For other boards: Enter CLI "sensor" to see the TX and RX GPIOs.
### 3.2 AHTX0
This is AHT10 and AHT20 Humidity and Temperature Sensor.
@@ -42,18 +50,13 @@ This is AHT10 and AHT20 Humidity and Temperature Sensor.
### 3.3 BME680
The BME680 is a compact environmental sensor by Bosch that measures temperature, humidity, barometric pressure, and air quality (gas/VOC).
-* Note: As of 20 Dec 2025, MeshCore app can not show the Gas telemetry properly in Channel 1 or 2.
* I2C address: **0x76**
-* For Adafruit BME280, you need to solder the Addr pad to use I2C address 0x76.
-* For other BME280 boards, you are strongly recommended to wire **GND to SDO** to force to use address 0x76. Else, the I2C address may jump either 0x76 and 0x77.
### 3.4 BME280
The BME280 is a compact environmental sensor by Bosch that measures temperature, humidity, and barometric pressure.
* I2C address: **0x76**
-* For Adafruit BME280, you need to solder the Addr pad to use I2C address 0x76
-* For other BME280 boards, you are strongly recommended to wire **GND to SDO** to force to use address 0x76. Else, the I2C address may jump either 0x76 and 0x77.
