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by sallvadorrr
Thu Feb 06, 2020 12:30 pm
Forum: HATs and other add-ons
Topic: Detecting low voltage signal
Replies: 4
Views: 512

Re: Detecting low voltage signal

@PhatFil
Thank you for you response.

I don't need to see the LEDs. Would you suggest removing them from the board and having an optocoupler in this place?

Thanks
by sallvadorrr
Wed Feb 05, 2020 4:05 pm
Forum: HATs and other add-ons
Topic: Detecting low voltage signal
Replies: 4
Views: 512

Detecting low voltage signal

Hi, I have a sensor with a PCB board on which there are two diodes. I'd like to detect when the diodes are on and off. Red diode: - OFF: 0.58V - ON: 1V Green diode: - OFF: ~ 0V -ON: 2.7V I tried using an https://uk.rs-online.com/web/p/products/8116178?cm_mmc=UK-PLA-DS3A-_-google-_-PLA_UK_EN_CatchAll...

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