diff --git a/Variant-USART.md b/Variant-USART.md
index 90e7aa0..8a7d28a 100644
--- a/Variant-USART.md
+++ b/Variant-USART.md
@@ -14,8 +14,8 @@ The default baud rate is 115200.
 ## Input:
 Commands are send as binary frames with following structure:<br />
 - Start frame(unsigned int16) : 0xABCD
-- Steer(signed int16) : Steer or Brake(hovercar) with range -1000 to 1000
-- Speed(signed int16) : Speed or Throttle(hovercar) with range -1000 to 1000
+- Steer(signed int16) : Steer with range -1000 to 1000 or Brake(hovercar) with range 0 to 1000
+- Speed(signed int16) : Speed  with range -1000 to 1000 or Throttle(hovercar) with range 0 to 1000
 - Checksum(unsigned int16) : XOR checksum
 
 The FOC firmware will discard frames that are not starting with proper start frame and not ending with correct checksum.<br />