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Microcontroller › 8051 › Bi Directional Visitor Counter circuit has problem
The project of automatic bi-directional visitor counter has lots of issues.
1. The LM358 shown on the circuit : shows 2&3 as input but out put is taken from pin-7, it should be pin-1.
2. In the circuit P1.5 & 1.6 are shown for up and down, wheras in the code P3.5 & 3.6 are used.
also it assumes that when there will be an obstruction between IR-TX & IR-RX the output will be high, which is wrong, the output from OPAMP will be low.