I just swapped out the batteries in the transmitter. It has an indicator for battery level and is green, which means full power.As far as led feedback from the arduino, I am using something like that already. The arduino engages and disengages the brakes by throwing a relay. The relay has an LED. When link is established the brakes are disengaged and do not time out to give me time to start the mower. No matter how I m9ve the stick and wait the led never turns off. Which meand the arduino is not seing a varying signal, only the link.Sorry for sp3lling... on the phine and editing is a pita.
So are you saying that the receiver or transmitter has failed and the Arduino part is working properly?
In your original post you said " though it is still linking to the transmitter and also putting out something on the PPM out." What is that something?
Have you any way (such as another Arduino) to simulate the output from the receiver?