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Need Help on "Test" button circuit with multiple LEDs

Hi there,

I am in the process of completing a circuit design (trying to, I'm not an electronics technician), that has 8 sensors that are run through 8 LEDs to indicate the positions of 4 actuators.

In the circuit I have a 3 way toggle switch that is used to dim the LEDs at night, has a DAY position (normal operation), and a momentary TEST position.

Because the voltage is supplied directly from the sensors to illuminate the LEDs I'm having a tough time figuring out the TEST circuit.

I'm looking for some direction on a circuit I could use to momentarily test that all the LEDs are working using the toggle switch?

I am trying to keep the circuit as simple as possible.

Thanks in advance. G

Reply to
Gman
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Hi. You need to insert diodes between the sensors and leds, and feed each led with another inserted diode from the test switch. Miguel

Reply to
Externet

Thanks,

That is sort of what I figured, for some reason drawing a blank when trying to think of it. Truly appreciated.

G
Reply to
Gman

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