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Auto-Power On MINIX NGC-1

Discussion in 'NGC-1' started by Martin Hans, May 10, 2016.

  1. Martin Hans

    Martin Hans New Member

    Hi,

    on the X7 and Z64 there was a possibility to set a jumper on the circuit board so that the device auto powers on when plugged in.
    This is not the case anymore in the NGC-1. Does anyone know a workaround for this or have any idea how it could be implemented?
    (The NGC-1 acts as server)

    Best regards
  2. neobasil

    neobasil New Member

    Hello,

    i had the same problem with missing auto-power-on function on a Minix Neo-5.
    And I found no other solution as to install an additional circuit which simulates
    a 2-3 second long touch of the power button.
    This kind of technical solution should work with all MiniX with 5V DC-In and
    similar housing design.
    [Edit: 12V versions: see below]

    It was hard to figure out how to build it in a quite simple way, without programming
    and voltage adjustment and, of course, it has to fit into the casing.

    The solution was a Digital Timer Circuit which was adapted to our needs.
    Things you need are:

    - Digital Timer Board (Nr.507212 Conrad Electronic SE)
    - 1x 10uF capacitor and a 1x 1uF capacitor
    - 1x 100 KOhm resistor
    - 1x PCB-relay e.g. FTR-B3SA4.5Z (Nr.629462-62 Conrad Electronic SE)
    [Edit: or Fujitsu FTR-B3SA012Z for 12v-Minix-Versions]

    Primary, in order to fit all this into the housing, you have to remove the PCB-Clamps and exchange
    the 10uF-capacitor to a new one which has to be positioned horizontally.( see pictures)
    On the side of the J1-connector you have to solder an 1uF capacitor and an 100KOhm-resistor as parallel
    connection.(Simulates a keystroke on power-on)
    It´s better to connect a mini-relay to the output which decouple the switching procedure and provides a “cleaner” circuit design.
    The Voltage for the board can be directly tapped on the contacts of the DC-Plug. And the relay-output can be directly soldered to the contacts of the power switch.

    Add.:
    Due to the combination of resistor and capacitor values on J1, it will be necessary to wait for about 1 second to repower the unit after power loss otherwise the capacitor wouldn´t be fully discharged and a circuit reset wouldn’t happen.

    Please be informed, all use of modifications is done at your own risk.


    Happy soldering!

    Attached Files:

    Last edited: May 18, 2016
  3. Villa

    Villa Well-Known Member Super Moderator

    The NGC-1 has a 12V DC supply!
  4. neobasil

    neobasil New Member

    Ok, sorry,... shouldn´t be a problem.
    The only thing which has to be adapted is the mini-relay (e.g. Fujitsu FTR-B3SA012Z).
    The one which is mentioned above works fine only with 5v.
    Last edited: May 18, 2016
  5. SimbadDeZeeman

    SimbadDeZeeman New Member

    Just a question, before i order these components. Do they all fit in the NGC-1 ?