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Need help to make a project Answered

I need to build a project where a proximity sensor of a person (1 - 3 ft) would cause a very small motor to press a plastic bottle once per cycle. The cycle should only be able to be activated once between 10 - 15 minutes.  The soft plastic bottle would be no more that 2 - 4 cm diameter 7 - 8 cm long with a tube connected to it's tip and the bottle would be inverted to allow gravity to allow the liquid to move down the tube. The idea is to get just 1 drop to drip from the tube. I would want the power source to be a rechargeable  AA 1.4v up to 8 - 9v rechargeable battery.  This will be my first electronics project so please keep it as simple as possible.

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Downunder35m
Downunder35m

4 years ago

Just get one of the automatic air fresheners ;)

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fred.salivia
fred.salivia

Answer 4 years ago

They use a totally different concept. They have a pressurized can. I need to use it to release a drop of liquid.

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Downunder35m
Downunder35m

Answer 4 years ago

So?
It is motor doing a short push onto the release valve.
What's the difference?
You need something to get your stuff out, if gravity fed use a simple valve instead of the motor, if you need slight pressure to get it out leave the motor.
They only cost a few bucks, comes with all you need including a motion sensor.
If you want to start with electronics you start simple and easy and not by trying something you can't fully understand and put into reality ;)

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iceng
iceng

Answer 4 years ago

I don't think Fred has the were-with-all to do electronics even if it is hanging on the shed