LED Reverse Polarity detector with buzzer indicator

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Eugene
Posts:34
Joined:Mon Feb 20, 2017 11:09 am
LED Reverse Polarity detector with buzzer indicator

Post by Eugene » Wed Mar 08, 2017 10:22 am

Hi all,
Required your help to do a simple project to detect a reverse polarity of thru hole LED for testing 12 individual LED in a fixture .
Currently we use manual kit with pogo pin give which is connected seriously with external DC power supply source,so when we insert fixture with LED to the kit ,it will contact to the pogo pin and light up.
Required your assistance for building simple project to detect any reverse polarity or no light up with a buzzer sound

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