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    A New Chapter for MagicMirror: The Community Takes the Lead
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    Smartmirror power supply and i2cDetect

    Scheduled Pinned Locked Moved Troubleshooting
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    • C Offline
      Chilred
      last edited by Chilred

      Hey,

      I built my first smartmirror and have two problems that may be related.

      First my setup
      RASPBERRY PI 3 Model B
      Raspberry Official Pi 3 Power Supply
      LG-Philips LP173WF1 (TL)(B2) 17,3" LED Display Screen (non-glossy) Full HD
      Hdmi Controller
      Ktec Universal AC DC Power Supply 12V 3A

      The Raspberry has its own power supply. It is connected to the Hdmi controller via HDMI cable. The Hdmi controller has its own power supply and is connected to the monitor.

      1. Display Turns On/Off
      The mirror actually works fine, but the display turns on every now and then. In the console I get the output “The Voltage is low”. However, the Raspberry Pi never restarts, only the display turns on/off.
      Actually I assume that the power is sufficient. Can you give me some advice? Possibly the power supply is not enough.

      2. Witty Pi Mini und i2cDetect
      I bought the Witty Pi Mini and installed it according to the instructions. I would like to start the Raspberry Pi in the morning and turn it off in the evening.

      I have built the controller on the Raspberry Pi. So the USB cable from the HDMI controller is connected to the PI.

      I can also start the mirror via the switch. However, nothing is detected with i2cdetect - 0 or 1.

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      60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
      
      70: -- -- -- -- -- -- -- --
      

      Does anyone have any experience on these topics? I am quite a newbie and this is my first project (so don’t blame me)

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