Im a baseball coach at a high school and when we use our pitching machine our players want to hit more balls than they should. I would like for an alarm to go off after a pre-determined amount of pitches. The machine has an arm connected to a wheel that rotates. Each full revolution equals one ball pitched. I would like to count each revolution (pulse) of the wheel either by a limit switch or even a reed switch with a magnet on the wheel. Maximum pitches would be somewhere around 10. There is 110 vac at the machine so I can run most any dc voltage through a transformer to run a circuit. I have played around with the 4017 counter/divider and the 555 timer but I dont seem to be getting anywhere. What would be the correct type of circuit to use for this type of application? Im not real experienced with electronics but I can follow a schematic and build a circuit. I would have to have a complete schematic in order for me to do this. Im not sure how much time it would take to make a schematic of this sort but any information would greatly be appreciated.
Thank You for Your Time
Thank You for Your Time