Arduino with NeoPixel Optocouplers Controlling Many Relays

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  • Stereo NeoPixel Ring VU Meter 11 days ago

    Hi Eric, excellent inspiring project and so many views and reactions, great!

  • Arduino Capacitive Soil Moisture Sensor (DIY) with ESP32 11 days ago

    Thank You!, Good to hear that it can be done on a Mega as well, very useful tip. The stainless steel welding rod is an excellent idea

  • Arduino with NeoPixel Optocouplers Controlling Many Relays 13 days ago

    Dear Stauffski, thank you for your message, indeed I used the strip that I had available and yes you are right, it is the resin that is causing the optical cross-talk. I solved that by reducing the luminance of the LED's (strip.setPixelColor(RelaisNo, RelaisState*15, RelaisState*15, RelaisState*15); and that works perfectly. Using a shift register is another approach, that could be considered depending on the application.

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