Jogging Timers

  
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This circuit was developed since a number of visitors of this website requested a timer capable of emitting a beep after one, two, three minutes and so on, for jogging purposes. As shown in the Circuit diagram, SW1 is a 1 pole 9 ways Rotary Switch. Setting the switch in position 1, the Piezo sounder emits three short beeps every minute. In positio
Jogging Timers - schematic

n 2 the same thing happens after 2 minutes, and so on, reaching a maximum interval of 9 minutes in position 9.



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