Hi
I'm trying to make a rc controller for my rc model
I could finally get everything to work, but I realized the two joystick modules are not accurate, many dead zones
Do you think replacing them with two thumb sticks from a ps4 controller will improve accuracy?
Many dead zones?
Post data sheets.
Like, it's not so accurate, when I push it, it turns the servo motors but not with a good resolution
000036 - datasheet KY-023-Joy-IT.pdf (696.6 KB)
Check the resistance with your DVM and see if the dead zones are really there! IF they are, they are the result of burning the resistance tracks by running too much current through the potentiometers. Is this the first time you have used this particular joystick and how do you have it connected?
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These joystick are not up to the task. An RC "joystick" has a non-linear retracting force and a "notch" in the center. Take a look at the detail foto #4 here:
https://de.aliexpress.com/item/1005007591222869.html
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Yes this is my first time, I just did everything the guy did here and his control looks so accurate in the video https://www.rcpano.net/2023/12/30/how-to-make-6-channel-radio-control-range-2000m/#google_vignette
You have options here with Arduino.
I don't know the steps but it's possible to make touchscreen phone apps that bluetooth to Arduino. You could go with touchscreen joystick and controls on a phone but how to watch that and an RC airplane?
You could adapt simulation gaming gear for high-end though at that level I'd want a POV camera in the RC.
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Are you certain this has nothing to do with bending pins (that probably touch now) on the joystick module?
What do you see as an output of one axis of the joystick when you are connected to an analog input pin? My KY40s have a deadband at the center between 50 and 100 bits... but the remainder of the movement seems linear.
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Many years ago I played flight sims that were combat based, but NOT M$ Combat Flight Sim. I had one stick that was always dead accurate and had a tight movement that centered very well... dead spot < 5. I won't say the name since they aren't made any more.
But it'd be possible to approach the same using Arduino as the controller and the heart of it is using optical encoding rather than analog. Note that most Office Stores do print B/W laser transparencies and that light detectors can have narrow aperture view though too narrow does get diffusion likely undesired.
Beyond that, I'm not ready to design such a stick... but I have Concepts!
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