rephrase

Author: mcmchris

content/hardware/03.nano/boards/nano-matter/tutorials/matter-relay-lightbulb/content.md

@@ -73,7 +73,7 @@ Use the following connection diagram for the project:
 
 ![Project wiring diagram](assets/diagram-v3.png)
 
-The relay module is powered by the Nano Matter `3.3V` pin and the relay is controlled with the `D4` pin. Wire the AC cable with the lightbulb so the relay interrupts the current path when open.
+The relay module is powered by the Nano Matter `3.3V` output pin and the relay is controlled with the `D4` pin. Wire the AC cable with the lightbulb so the relay interrupts the current path when open.
 
 ***Be careful when handling with main voltages.***
 

content/hardware/03.nano/boards/nano-matter/tutorials/matter-rgb-light/content.md

@@ -71,7 +71,7 @@ Use the following connection diagram for the project:
 
 ![Project wiring diagram](assets/diagram-v2.png)
 
-The RGB LED matrix is powered by the Nano Matter `3.3V` pin, and it is controlled using an I2C connection.
+The RGB LED matrix is powered by the Nano Matter `3.3V` output pin, and it is controlled using an I2C connection.
 
 ### Programming
 

content/hardware/03.nano/boards/nano-matter/tutorials/matter-temp-sensor/content.md

@@ -71,7 +71,7 @@ Use the following connection diagram for the project:
 
 ![Project wiring diagram](assets/diagram-v1.png)
 
-The OLED display and the DHT temperature sensor are powered by the Nano Matter `3.3V` pin. The OLED display uses I2C for communication and the DHT sensor uses a one-wire digital communication connected to `D4`.
+The OLED display and the DHT temperature sensor are powered by the Nano Matter `3.3V` output pin. The OLED display uses I2C for communication and the DHT sensor uses a one-wire digital communication connected to `D4`.
 
 ### Programming