Aircraft radio remote control

Pat Alonzi

Hi everyone,

Does anyone know if it is easily possible to use an aircraft remote control set to switch a relay on and off? I know they use a PWM signal to control servos and I was hoping to basically have a threshhold so that it will toggle an output pin when the PWM> than a value. I know this can be done using a micro controller but i was hoping to do this with just a few IC's.

Thanks,
-Patrick

Franklin

Why not just use a servo to move a switch?

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- Stephen

skatj

It's definitely possible, and I've done it before.

I'm not sure what radio set you're using, but I'm using a 6-channel Futaba radio and channel 5 is the gear switch.

Connect the receiver channel directly to an I/O pin (I did this by snipping off the power/ground wires on a servo extension cable, plugging it in the breadboard, and running another wire into the pin port). You can then read the PULSIN value of that pin to find the current pulse value of the gear switch. For my radio, 1900 is the midpoint so have a conditional check for values below and above that number.

edit: Sorry, I did not see your comment about microcontollers. I'm not sure how to do it without one.

Pat Alonzi

I thought about using a servo to trigger a limit switch but it would be way too heavy for my application.

Thanks,

-Pat

RichardF

Go to RCATSYSTEMS.COM. They have just what you need.