Fish Feeder With Shakin´Slider by willie42

Last crawled date: 3 years, 4 months ago

I loved the "Automatic Fish Feeder" by pefozzy (thing:2539750).
I used an old 40 x 20 servo that I had retrieved from an old rc-car. Pefozzys base for the big servo has no room left to mount the arduino nano. I could have glued it on top, but I wanted to add a button as well.
So I imported the stl into Freecad and drew this remixed design.
Mods
added space to mount the arduino (upright)
added space for a 6 x 6 push-button
changed the arduino-sketch:
added a parameter „shots“ to increase the amount of food dispensed
added a shaking to the code to make it more reliable - the shake helps lightweight flakes to slip down
added an interrupt for the button to manually give food or for testing reasons
added a flashing off the onboard-LED, so there is an additional optical feedback
I add the original arm and tank as well - so that the thing is complete here.
If you want to use a servo of a different size, a bigger tank or the original sketch, than have a look at the source and the other remixes as well.
Using it
When using it you should mount the downside at least a few centimeters above the water level and well ventilated. Otherwise water will condense and the food may stick. Maybe later I will add a slip or equivalent and mount the feeder even higher (idea: thing:2798949)
https://youtu.be/ObHfq6WmjdA
The sketch runs a counter from startup and dispenses food every 24 hours. You can feed manually by pushing the button.
Changing „shots“ in the sketch will influence the amount of food dispensed.
UPDATE: Bug in *.ino - new sketch 20.10.2020