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    Controller that can be powered with 5v through GROVE

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    • A Offline
      amateur58
      last edited by

      I'm looking for a controller that accepts 5v through GROVE. This is to use it with a heat pump that sends 5v over the 5v line. I know the Atom S3 Lite does. I would be particularly interested in either the M5stickC Plus 2 and the Nano C6. Now I have some basic knowledge of schematics but I can't decide wether these can be powered over GROVE. I looked up all schematics.

      Atom S3 Lite schematics
      M5StickC Plus2 schematics
      Nano C6 schematics

      I can't read the schematics well enough to decide wether the Stick and Nano can be powered over GROVE. If I look at the Atom S3 Lite schematics I see the GROVE port is wired differently. But that's all I can conclude. It would be great if anyone could help me in wether the Stick and Nano are fit for my purpose and how you came to that conclusion so I can learn from it. Thanks!

      felmueF 1 Reply Last reply Reply Quote 0
      • felmueF Offline
        felmue @amateur58
        last edited by

        Hello @amateur58

        as you already found out M5AtomS3 can be powered via 5 V through Grove. The same is true for M5NanoC6 as VBUS (from USB-C) is connected to 5 V of the Groove port.

        However M5StickCPlus2 is different as it has a dedicated 5 V IN and 5 V OUT. It can only be powered via 5 V IN (which is not on the Grove port).

        Thanks
        Felix

        GPIO translation table M5Stack / M5Core2
        Information about various M5Stack products.
        Code examples

        A 1 Reply Last reply Reply Quote 1
        • A Offline
          amateur58 @felmue
          last edited by

          @felmue
          Thanks! How did you see that in the schematic for the M5StickC Plus2?

          felmueF 1 Reply Last reply Reply Quote 0
          • felmueF Offline
            felmue @amateur58
            last edited by

            Hi @amateur58

            you need to open the PDF of the schematic, else you don't see all of it. +5VOUT going to the Grove port comes out of U6 going through diode D20. So if you were to feed 5 V to the Grove port it would end at the diode.

            Thanks
            Felix

            GPIO translation table M5Stack / M5Core2
            Information about various M5Stack products.
            Code examples

            A 1 Reply Last reply Reply Quote 2
            • A Offline
              amateur58 @felmue
              last edited by

              @felmue Thank you! I learned something today by downloading the PDF's and applying what you explained :)

              1 Reply Last reply Reply Quote 1

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