Please help.
I have setup my camera trigger according to Arducopter wiki pages. I am using pin AN9 and also use ch7 (trigger camera). Good news is if I measure the signal pin of AN9 I can see it goes high (4.65V) when I trigger ch7. Bad news if I connect my relay (HFD23) to ground and signal pin it will not switch relay? The voltage drop falls to about 0.325V with no switching. I only need about 35mA to switch the relay. I tested the relay by just connecting it to 5V and ground on AN9 and it does switch with no problems.
I am now wandering if the port (AN9) is setup correctly during camera trigger to supply enough current? Do I need an external transistor to switch my relay?
Please help.
Greetings,
Hein
Replies
I manage to get it working. Just follow the LED connection section and then use the same electronic chip as recommended for the apm1. Instead of 12V I use the 5V from the APM2.5 as power source and it works fine.