diff --git a/Debug-Serial.md b/Debug-Serial.md
index 5b32f72..1e513c2 100644
--- a/Debug-Serial.md
+++ b/Debug-Serial.md
@@ -7,6 +7,9 @@ Debug Serial can be enabled with DEBUG_SERIAL_USART parameter and will allow you
 
 Connect a [FTDI Serial adapter](https://s.click.aliexpress.com/e/_AqPOBr) or a [Bluetooth module](https://s.click.aliexpress.com/e/_A4gkMD) to the DEBUG_SERIAL cable (Left or Right) and monitor the output data using the [Hoverboard Web Serial Control](https://candas1.github.io/Hoverboard-Web-Serial-Control/) tool developed by [Candas](https://github.com/Candas1/) or any serial monitor.
 
+[HC-06](https://www.aliexpress.com/af/HC-06.html) works, connected to USART2 at 9600 bauds (define DEBUG_SERIAL_USART2 and USART2_BAUD=9600).
+For a more detailed troubleshooting you can use 
+
 ## Wiring:
 * Connect GND and RX of a 3.3v uart-usb/FTDI adapter to the left (USART2) or right sensor board cable (USART3) depending on config.h settings