After a short time off, I am back with a simple object/visitor detecting and counting circuit, dedicated to all electronics hobbiests. This project counts how many objects or persons passed through its field of visibility. In order to keep the circuit simple, it is implemented with a single digit seven segment display, so it can count only up to 9. It is also possible to extend the count by interfacing more seven segment display and its driver IC’s (CD4033). This simple electronics project mainly consists of two sections
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