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Room Visitor Counter with Relay Control
I use MSP430G2231 microcontroller generates two direction switch signal output, how to achieve
When someone via IR-P1.3, then by IR-P1.6, P2.6-LED1 lit, it indicates to enter,
When someone via IR-P1.6, then by IR-P1.3, P2.7-LED2 is lit, the exit
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