Odroid W, or gutted a raspberry pie

    The other day, I was digging into the price list of a Moscow company in which I bought Malinka almost a year ago, and was surprised to find, among other things, Odroid W - the very same “Raspberry is three times smaller” board ...
    Given that there was money and I wanted a couple anyway pieces of these - I made an order and on Friday did pick it up ...

    This is a "survey" for feeling the paws of a new board and revealing some things that were not obvious at first glance.


    Where are my connectors ?!

    Approximately 90% of the bug when discussing the new board was due to the fact that it was “bald” - USB was not soldered, there was no pio comb, no Ethernet, etc.
    For me - this was what became decisive when buying: I needed a really FLAT comp! A number of things bothered me stupidly, USB stuck out and threatened to break out, the reliability of the connector for the ports did not inspire confidence (and I stupidly soldered on it!), And the power supply through the micro-USB was incredibly infuriating: well, what kind of reliability can we talk about with this little stick ?!

    At the moment, to be honest, only the absence of Ethernet is frustrating, because I worked with raspberries through the network ...

    Actually, Odroid W is a little “inside” thing: yes, it’s not so easy to make a cluster out of it, you cannot turn it on and play out of the box, it needs at least a soldering iron, but ...
    But, yes, this is the same “little thing for geeks” that was expected from the first Raspberry and which it didn’t justify, becoming a “little thing for everyone and everyone”!

    Yes, all connectors can be soldered to hell with Raspberry, but there is a risk that something will be damaged.
    And here - the device is three times smaller in area and 3-4 times - in height !!! And don’t have to fuck in order to rid him of all the “superfluous”!

    Battery powered

    I understand that many stupidly used Raspberries in the "hospital", but the presence of the ability to stick the battery is brilliant!
    According to the specification of the board, you can connect a Li-Po battery of 3.7 Volts ("One Bank") with a capacity of up to 1000 mAh.
    On sale from the manufacturer - 750 mAh, in Moscow in half a day I found a maximum of 600 mAh ... I didn’t really look for it, to be honest ...

    And then the “joke” from the manufacturers begins: Molex 53398-0271 connector is for connecting the battery !! ! The answer on the side of the battery is Molex 51021-0200, which is really hard to find in Moscow ...
    As a result, I killed half a day in search of a connector, spat and decided to solder stupidly to the contacts ...

    Upon returning home and reading the detailed drawings, I realized that I had more respect manufacturer: yes, he put a filthy connector, but ...
    But on the opposite corner - it is duplicated by two contacts through through soldering !!! (on the connector diagram - “Battery” in the lower right)
    A tester dialing showed that it is true - He!

    SD vs MicroSD

    Five points! Definitely!
    As a minus, it would be possible to find that the connector is not on the edge and inside the device it will be difficult to change the card, but ... Damn, you often change the system hard in your computer, right? On many other microcomputers, the bootable flash drive is generally tightly soldered!

    A minor minus is that there is only a connector from the slot, as a result the card for the most part hangs in the air and if you don’t put a thread, there is a risk of breaking it.

    A sea of ​​hate, or "They hooted a composite signal!"

    I also longed for a long time - I wanted to make glasses, but then I saw: the second connector on the right, the bottom hole: Video Output !!! Composer! Native!

    “I have one USB maaalo! Two was fine, but I don’t want to set the hub! ”

    Visually - there is only one USB on the board, but in practice - TWO of them!
    On the right connector are 3 and 4 pins from the bottom: second USB!

    Actually, it is through it that the “standard” expansion card with Ethernet and 4 USB works: a banal hub with a network output!

    “But why was the UART removed in the top device?”

    14-15 GPIO - UART0. Actually there, where on Raspberry!

    Well, where is the audio output? We don’t play like that!

    In general, users of Raspberry are divided into 4, roughly, categories:
    1. “What the hell is the sound there ?!”
    2. “How can you listen to this muck ?! I stuck a little sound in there! ”
    3.“ And I'm listening through HDMI! ”
    4.“ Why are you ?! Normal sound! ”

    Actually for the latter - 4 Conders and 4 threads for 40 and 45 GPIOs (PWM TOUT0 (1)), and I left my SB Play to solder!
    Given that this is not a DAC, but stupidly PWM - it is clear why such a killed sound was on Raspberry!


    For myself - I found what I was looking for! Malinka is compact in size, without unnecessary things!

    PS I will not give a link to the store - the prices are still not quite humane, in order to advertise them more!

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