Trim Wheel

Elevator Trim

I made a trim wheel to use for elevator trim control.
Built in next to the throttle. Mobiflight is convenient for control, but this throttle & flap etc. is used by putting Sketch of her analog input in Arduino Leonardo. It seemed good to use a rotary encoder, but since Sketch is difficult, I control it with an analog input using a variable resistor.
The wheel is made by wood cutting out a round plate. I made 16 notches around it with a thin file.
A gear is used to earn the angle of rotation. Wheel can rotate about 510° for a variable resistor that rotates 300°.
This gear was probably taken from a failed inkjet printer.

control

I added it to the throttle, I ran out of control lines connected to the yoke body.
It is difficult to connect to the socket and plug with the Mini-DIN connector and it becomes unstable, I decided to change the connection to the D-sub 9pin connector and use it, and it is connected firmly.
A shielded wire is used from the connector to Arduino Leonardo. Analog voltage is used as the input control, the influence from the digital circuit is reduced as much as possible.