I've just installed Raspbian to my new RPi2 B+. Shutdown and connect Adafruit Neopixel Ring (3 connectors: 4th pin - 5v, 6th pin - GND, 12th pin - DATA IN) and boot the RPi. Then it has reset itself and hasn't booted anymore. Red pwr led lights faint, and the green just a bit. Power supply is 5V, 2A.

Edit: After all found the recommendations to not supply Neopixels by the 5V rpi's output. The question is - is it possible to recover RPI or better throw to trash?

  • Hello and welcome. Do you have a multi-meter available to check the voltage of your power-supply?
    – Ghanima
    Dec 23 '15 at 16:40
  • Hello, unfortunately not. Dec 23 '15 at 16:45
  • 1
    Do you have a reference WRT how you decided it should be hooked up that way? Supplying 5V and then attaching a GPIO pin directly may not have been wise. learn.adafruit.com/neopixels-on-raspberry-pi/wiring
    – goldilocks
    Dec 23 '15 at 17:30
  • Are you also using the Adafruit "neopixels-on-raspberry-pis" article for reference at all?
    – SlySven
    Dec 23 '15 at 17:33
  • Does it boot up okay without the Neopixels? If so, there is insufficient power.
    – joan
    Dec 23 '15 at 17:36

Remove all the neopixel bits. If the pi boots with no issues then thank the relevant god(s) and continue.

If the pi does not boot, do not worry. You have made your sacrifice of magic smoke - buy a new pi.

Edit to add: Check really carefully that the pins you soldered to the Neopixel Ring are what you think they are. If mixed them up... magic smoke risk.

  • All of that was discussed in comments above. Not helpful answer. Dec 24 '15 at 14:33
  • What was discussed in the comments was the relative wisdom of using a neopixel at 5v on a pi. I was trying to answer the question of "Do I need a new pi?", as per edited question. Either a pi works...or you fried it. Dec 24 '15 at 19:18

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