PushUp Counter

This is a simple circuit for hobbyists. Here i have made a 99 counter with IC's 4026. It counts one when the clock input is supplied with a high to low input, and so on. The clock input is really acting as a switch. So i converted this circuit in to a pushup counter by attaching an IR sensor to the clock input. The IR sensor has a range of 15 cm to 150cm, but only the sufficient clock input is generated by the IR sensor only when some reflective body comes close to it at-least 15cm's. That is the IR sensor acts like a touch-less switch.
Here is the circuit diagram

IR sensor packing

Package size : 29.5×13×21.6 mm




If this IR sensor is kept below your forehead, it will generate clock pulses for the counter when your head comes close to it.