diff --git a/Variant-IBUS.md b/Variant-IBUS.md
index 1dbbdd9..a9d7a2a 100644
--- a/Variant-IBUS.md
+++ b/Variant-IBUS.md
@@ -1,9 +1,10 @@
 This variant can be used with Flysky RC Receivers compatible with IBUS protocol.<br />
 It will send all channels on a single wire like PPM, but is more reliable as it is a digital protocol using a USART frame and checksum.<br />
-Default number of channels for IBUS in config.h is 14.
+Default number of channels for IBUS in config.h is 14 (successfully tested with Flysky fs-I6AB and RX2A).
 
 ## Wiring:
 * Connect green wire to IBUS port of your receiver on right sensor cable(shorter)
+* If you want to use the left cable instead, replace CONTROL_SERIAL_USART3 by CONTROL_SERIAL_USART2 and FEEDBACK_SERIAL_USART3 by FEEDBACK_SERIAL_USART2 in config.h
 
 ⚠ Red wire from sensor cable delivers 15v !!!
 Use 3.3v from programming port, 5v from hall sensor cable, or a voltage regulator.
@@ -15,6 +16,6 @@ Proceed with [calibration](https://github.com/EmanuelFeru/hoverboard-firmware-ha
 
 If the board is beeping
 * Check the number of channels, even if you transmitter only handles 6 channels, you receiver might transmit more channels
-* Make sure you enabled PPM on your transmitter
+* Make sure you enabled IBUS on your transmitter, on some models it is activated together with PPM
 * Make sure you are using the sensor cable(left or right) selected in config.h
 * On some boards the wire colors might differ, try the blue wire
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