diff --git a/Variant-USART.md b/Variant-USART.md
index 36b9b17..e1768d1 100644
--- a/Variant-USART.md
+++ b/Variant-USART.md
@@ -57,6 +57,8 @@ Following feedback is sent every 10ms:
 - Led(unsigned int16) : Used to control the leds on the sideboard
 - Checksum(unsigned int16) : XOR checksum
 
+This other [fork](https://github.com/alex-makarov/hoverboard-firmware-hack-FOC/commits/master) also has hall ticks as feedback.
+
 The least significant byte comes first (little endian).
 
 ## :toolbox: Troubleshooting: