Update creating-configuration.mdx (#247)

* Update creating-configuration.mdx * Update creating-configuration.mdx
betaflight · Dec 6, 2023 · bb06a37 · bb06a37
1 parent 3c5de7f
commit bb06a37
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/docs/manufacturer/creating-configuration.mdx b/docs/manufacturer/creating-configuration.mdx
@@ -146,7 +146,13 @@ The following example shows how to configure the serial ports for a flight contr
     #define VTX_SMARTAUDIO_UART SERIAL_PORT_USART3
     #define GPS_UART SERIAL_PORT_USART4
 
-Note: serial command is zero index based, so the first serial port is `SERIAL_PORT_USART1` and not `SERIAL_PORT_USART0`.
+:::note
+
+Serial command is zero index based, so the first serial port is `SERIAL_PORT_USART1` and not `SERIAL_PORT_USART0`.
+
+The USART is meant to do all of the “heavy lifting” serial communication during periods of “high” energy consumption. When the microcontroller is asleep and in a low power mode, though, the UART peripheral can handle low speed communications while offering a reduced energy footprint. Betaflight has UART4 and UART5. Other serial ports are USUART as some board provide LPUART1
+
+:::
 
 ### Serial Receiver Provider