diff --git a/Variant-USART.md b/Variant-USART.md
index 470c3b0..21436dc 100644
--- a/Variant-USART.md
+++ b/Variant-USART.md
@@ -25,8 +25,8 @@ By default, USART is configured with 115200 baud, 8 data bits, no parity, one st
 ## :joystick: Input Command Structure:
 Commands are send as binary frames with following structure:<br />
 - Start frame(unsigned int16) : 0xABCD
-- Steer(signed int16) : Steer with range -1000 to 1000
-- Speed(signed int16) : Speed  with range -1000 to 1000
+- Steer(signed int16) : Steer input or Left input with [tank steering](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Parameters#-tank-steering)[-1000 - 1000]
+- Speed(signed int16) : Speed input or Right input with [tank steering](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Parameters#-tank-steering)[-1000 - 1000]
 - Checksum(unsigned int16) : XOR checksum
 
 The least significant byte comes first (little endian).<br>