Happy Holidays to all of you.
I have an exciting project (we all believe that about what we're currently fiddlin' with) in which I want to operate a servo wirelessly with a homemade transmitter. It will eventually operate a rocker arm that actuates a door (open AND close it) for my son's hampster tunnel. I know, kids love the bizarre things and we love to build them.
I have an exciting project (we all believe that about what we're currently fiddlin' with) in which I want to operate a servo wirelessly with a homemade transmitter. It will eventually operate a rocker arm that actuates a door (open AND close it) for my son's hampster tunnel. I know, kids love the bizarre things and we love to build them.
- A basic, plain jane Futaba S3004 Standard Ball Bearing Servo
- Two GWS Receiver Crystal channel 65 UM-1 75.490 Mhz crystals to operate the RX and the TX:
- A GWS 75Mhz 4-Channel Pico Receiver - Vertical Pins, Futaba style
HERE'S THE CHALLENGE
Most of you that are familiar with R/C toys know the missing component is the transmitter. I own several R/C cars and could scavange the parts from my radio systems BUT my wife would cut off my allowance for destroying my cars...which were NOT cheap!
So fabricating a transmitter assembly is my goal. I know that there's one of you out there with the informational resources to steer me in the right direction.
My guess is I'd need a small circuit board (The part inside my pistol grip transmitter which I cannot pirate) which connects to a crystal, and battery. And not needing it to be digital, an analog type of device, upon which a dial can be affixed to send the "open and close" action signal to the servo.
Cost is a major factor as you can see from the links I posted. I want to keep the cost as low as possible since this is not a crucial project for Snaps the hamster...but dang it, I have to help contain this beast!