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    Can I use an Atom Echo to 'smarten' an LED string

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    • S Offline
      SilentSquirrel
      last edited by

      I have an Oliver Bonas LED light string that has stopped working after only 2 Christmases. I also have a spare Atom Echo that I'm not using. I was wondering if I can use one of the pin outs from the Atom to control the LED string?

      I have disassembled the control unit and the 3 AA (1.5v but series so 4.5v) batteries are wired straight to the LED +ve wire out so I thought the 5v output pin of the atom would work (with the right resistor) but I found a post that suggests that the 5v pinout is always powered. The same post said that the other output pins (G21 / G25) are only 3.3V which I don't think is enough power for the LEDs.

      Any advice would be greatly apricated! Including any where I can get some starting code to make them fade in / out - assuming that's even possible.

      Thanks.

      kurikoK 1 Reply Last reply Reply Quote 0
      • kurikoK Offline
        kuriko @SilentSquirrel
        last edited by

        @SilentSquirrel
        How do you control your LED? Is it simply on/off or is there a driver chip?

        Good morning, and welcome to the Black Mesa Transit System.

        S 1 Reply Last reply Reply Quote 0
        • robskiR Offline
          robski
          last edited by

          you would need something like PWM kit to do what you need ...

          https://shop.m5stack.com/products/atomic-pwm-base-fdd8447l

          M5StickC, M5StickCPlus, M5StickCplus2,M5GO, M5Core, M5Tough, M5Core2, M5 Demo Board, M5Dial, M5Paper, M5Atom, M5Cardputer, M5StampS3, CoreMP135, StamPLC, AirQ, M5Tab, M5CardputerAdv, M5StackChan

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          • S Offline
            SilentSquirrel @kuriko
            last edited by

            @kuriko

            Multi-pole switch and chip. The chip also dims the lights but that's not essential.

            Battery terminal > multi pole switch to different pins to a chip > LED

            1 Reply Last reply Reply Quote 0
            • S Offline
              SilentSquirrel @robski
              last edited by

              @robski

              Thanks, I'll have a look.

              1 Reply Last reply Reply Quote 0

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