diff --git a/Tools/Linux_HAL_Essentials/RCInput_UART/pic_firmware.asm b/Tools/Linux_HAL_Essentials/RCInput_UART/pic_firmware.asm
index e8c440b9bb..28b6836d42 100644
--- a/Tools/Linux_HAL_Essentials/RCInput_UART/pic_firmware.asm
+++ b/Tools/Linux_HAL_Essentials/RCInput_UART/pic_firmware.asm
@@ -348,6 +348,10 @@ SendLoop:
     goto    SendLoop
 
     bcf     STATUS, IRP
+
+    ; set led on
+    bcf     PORTC, RC1
+
     goto    MainLoop
 
 Send: