Meaning to run an average bath, I've yet again let it fill to the brim.
So what I need is: a pair of wires, a battery, and a buzzer. So I can hook a simple contraption over the side with the wires pointing downward and ending at the desired water level, and when the water reaches that level the buzzer sounds. Real cutting-edge physics this. (Even better would be a motor that could then automatically turn off the tap!)
Any ideas where to buy hobbyist type items like this? Obviously I can buy the wire and batteries anywhere, and perhaps the buzzer wouldn't be too hard (I could maybe extract one from a cheap smoke detector for example.) But perusing a good web site might give me other ideas.
Who knows, next year I could be on Dragon's Den, trying to flog a patent bath level detector.
So what I need is: a pair of wires, a battery, and a buzzer. So I can hook a simple contraption over the side with the wires pointing downward and ending at the desired water level, and when the water reaches that level the buzzer sounds. Real cutting-edge physics this. (Even better would be a motor that could then automatically turn off the tap!)
Any ideas where to buy hobbyist type items like this? Obviously I can buy the wire and batteries anywhere, and perhaps the buzzer wouldn't be too hard (I could maybe extract one from a cheap smoke detector for example.) But perusing a good web site might give me other ideas.
Who knows, next year I could be on Dragon's Den, trying to flog a patent bath level detector.
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