I am about to begin potty training multiple little boys. I thought of an idea and was hoping somebody knew what kind of hardware I could use...
Ideally there will be a button the size of a sticker in the "sweet spot" of the toilet. When someone urinates on that spot, it would trigger something on a Raspberry Pi GPIO (not sure what to use yet - recording of people cheering? lighting up colorful LED lights? - suggestions welcome).
Now, what can I use for this "sticker"?
Some ideas included moisture sensor, temperature sensor and even an ammonia sensor. I haven't found anything that is in the right form factor.
Happy for all suggestions and inputs, even complicated ones... I am not afraid of getting my hands a little messy ;-)
Thanks in advance! ~Mo