Hi,
I am looking for a circuit’s schematic for the 4026 counter (or any other similar Counter IC) to attach its circuit at the door of my refrigerator so that when we open the refrigerator door ten times the counter’s Buzzer will start beeping and will not stop until we hit the reset button. Those ten times events of opening the door should be random (for example, I open the door now and the second time could be after one second or even fifteen minutes later). The counting process will be through a magnetic switch placed at the Refrigerators door and connected to the counter’s circuit. Note: I don’t need a 7-sgment lcd to show count there.
Any assistance/help in this regard is highly appreciated.
Thanks
A.K.
I am looking for a circuit’s schematic for the 4026 counter (or any other similar Counter IC) to attach its circuit at the door of my refrigerator so that when we open the refrigerator door ten times the counter’s Buzzer will start beeping and will not stop until we hit the reset button. Those ten times events of opening the door should be random (for example, I open the door now and the second time could be after one second or even fifteen minutes later). The counting process will be through a magnetic switch placed at the Refrigerators door and connected to the counter’s circuit. Note: I don’t need a 7-sgment lcd to show count there.
Any assistance/help in this regard is highly appreciated.
Thanks
A.K.