a little update. have all of the relay functions working via touchscreen. having a tiny issue with the swipe. ever once in a while it'll execute a swipe command when i tap the screen. gonna have to look deeper into the code. its not a huge issue at the moment though.
decided to explore using a rotary encoder for wedge input instead of the more complicated motorized potentiometer. It's very cool to have but it has a larger overhead during the wedge positioning. I ordered a 74xx74 ic that i'll wire up to the potentiometer to give me a square wave digital input. (for each step it'll go high/low on input 1 for ccw and high/low on input 2 for cw). this will let the arduino spend more time reading the wedge angle sensor and controlling the actuators and less time monitoring the rotary encoders for changes in position.
another issue i was having is that updating the display to match the wedge angle wasn't as clean as i would have liked and wasn't very accurate. And knowing if the ballast pumps were on/off/filling/emptying was a bit of a pain. i'd have to go to draw my attention to the screen and navigate to the ballast control screen. I decided to order up some switec stepper motors (the same ones the stock gauges use) and a couple of rgb leds. The revised plan is to replace one of the two speedos (no need for the second one) with this:
The stepper will have a needle attached to show wedge position and there will be 3 leds to give me instant feedback of the ballast pump state.
i also added control for two high current (350 amp) battery relays to 'replace' my battery switch, finilzed the code to control the lighting (nav, dash, int) as well as two thermistors to give me air and water temp readings.
I'll try to upload a wip video soon
for your hard tanks, could you just use a fuel tank gauge? or you could build your own with an ip67 potentiometer and rod with a float on the end of it.
Originally Posted by Darude
just a small update. have a work in progress video of the new gauge for the power wedge hydrofoil.
Looks great Scott_fx!
But display is not too small? On the water it will be not so easy to push needed place of the screen? And aslo read sign of button....