chickens1127
New Member
I'm building a vending machine. Basically, I've designed a way that make sure the coin you put in is a quarter, but then I need an optical sensor. I can put electrical tape on the other side of the sensor, so there is very little light and the sensor will capture very little voltage. However, when a shiny quarter passes through, I need an optical sensor to send enough voltage to maybe a solenoid, which will momentairly let a little candy out of the opening. I have photo diodes, but would this work? Is there somewhere I can get a sensor and get it done with shipping for $10?
In addition, could I find a really BIG capacitator so it takes three quarters to store up enough energy?
Thanks
In addition, could I find a really BIG capacitator so it takes three quarters to store up enough energy?
Thanks
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