I have a question about this low battery indicator circuit:

I have already built the circuit, I just have a question about setting the potentiometer (R4). I want the LED to turn on at 6.1v, so how do I set the pot to do that? It's a stupid question, I've just never known how to do this properly. Thanks

  • 4
    \$\begingroup\$ Set your variable power supply to 6.1V and adjust. \$\endgroup\$ – Ignacio Vazquez-Abrams Mar 26 '17 at 15:35
  • \$\begingroup\$ @Ignacio Vazquez-Abram Do I set the pot right when the Led turns on? Because the LED will remain on for about half of the pot's turn. \$\endgroup\$ – MH0517 Mar 26 '17 at 15:52
  • \$\begingroup\$ You set it for the threshold, yes. \$\endgroup\$ – Ignacio Vazquez-Abrams Mar 26 '17 at 15:55

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