diff --git a/Debug-Serial.md b/Debug-Serial.md
index 0c89fb8..8f588df 100644
--- a/Debug-Serial.md
+++ b/Debug-Serial.md
@@ -5,13 +5,16 @@ Debug Serial can be enabled with DEBUG_SERIAL_USART parameter and will allow you
* Debug
* Plot the results
-Connect a [FTDI Serial adapter](https://s.click.aliexpress.com/e/_AqPOBr) or a [Bluetooth module](https://s.click.aliexpress.com/e/_A4gkMD) (eg. AT-09, HM-10, HC-06,...) 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.
+Use a [FTDI adapter](https://s.click.aliexpress.com/e/_AqPOBr) or a [Bluetooth module](https://s.click.aliexpress.com/e/_A4gkMD) (eg. AT-09, HM-10, HC-06,...) and monitor the output data using the [Web Tool](https://github.com/Candas1/Hoverboard-Web-Serial-Control) tool 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
+
+## Configuration:
+Use DEBUG_SERIAL_USART2 for the left cable or DEBUG_SERIAL_USART3 for the right cable.
+Different variants can have it already enabled on a different cable depending on which cable is use by this variant by default.
## Wiring:
-* Connect GND and RX of a 3.3v uart-usb/FTDI adapter to the left (DEBUG_SERIAL_USART2) or right sensor board cable (DEBUG_SERIAL_USART3) depending on config.h settings
+* Connect GND and RX of a 3.3v FTDI adapter/Bluetooth module to the blue wire on left (DEBUG_SERIAL_USART2) or right sensor board cable (DEBUG_SERIAL_USART3) depending on config.h settings
⚠ Red wire from sensor cable delivers 15v !!!
@@ -36,9 +39,6 @@ The above is done in `main.c`, see [lines 440](https://github.com/EFeru/hoverboa
## Debug Protocol:
If enabled with parameter DEBUG_SERIAL_PROTOCOL in [config.h](https://github.com/EmanuelFeru/hoverboard-firmware-hack-FOC/blob/master/Inc/config.h), debug protocol lets you send Ascii commands.
-All commands can be used for parameters.
-Variables cannot be Set,Initialized or Saved.
-Values are being translated to external<>internal format automatically.
### Commands
|Command|Usage|Description|
@@ -52,6 +52,9 @@ Values are being translated to external<>internal format automatically.
### Parameters/Variables
+All commands can be used for parameters, but variables cannot be Set,Initialized or Saved.
+Values are being translated to external<>internal format automatically.
+
|Type|Name|Description|Can be Set|Can be saved to EEPROM|
|----|----|----|----|----|
|Parameter|CTRL_MOD|Ctrl mode 1:Voltage 2:Speed 3:Torque|Yes|No|
@@ -89,5 +92,10 @@ Values are being translated to external<>internal format automatically.
|Variable|BATV|Calibrated Battery Voltage *100|No|No|
|Variable|TEMP|Calibrated Temperature °C *10|No|No|
-
+## Troubleshooting:
+* Make sure the baud rate is 115200
+* Make sure you are using the sensor cable(left=DEBUG_SERIAL_USART2 or right=DEBUG_SERIAL_USART3) selected in config.h
+* TX can be defective on your mainboard, you can switch to other sensor cable if not used already in config.h
+* On some boards the wire colors might differ, try switching the green wire
+* Make sure the RX on your FTDI is working. You can connect the RX and TX on the FTDI and check if you received the commands you send in the [Web Tool](https://github.com/Candas1/Hoverboard-Web-Serial-Control) tool or any serial monitor