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  • State Verified Answer
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New to the pi world

Former Member
Former Member over 11 years ago

So I've been scouring the internet for stuff to do with my new pi for about a week now and I've decided that what I need to do is get a small display with no audio, a compact laptop battery, and a compact keyboard. Then proceed to boot  with out Xwindows in a text environment and use it along side my Linux class for practice, until I learn how to really use this sucker. So now I'm stuck because not only can I not find the perfect display I also have no idea what I'm doing when it comes to the electricity part for the display and pi all in one. I'm normally the google, then do, then ask questions when its broken type of person, but, I would prefer not to start anymore fires. The display I will eventually find how ever the voltage regulators and this and that's to make sure that the power going to the pi, display, and speakers is correct is where I'm stuck. Advice on any sites or places to learn minor electrical engineering preferably with video lectures would be awesome.

 

Also, a start on what some options are for a medium to small size display would be awesome. Big enough to fit some text on the screen but small enough to be easily transported in some sort of rudimentary wooden case that I'm going to have to build up as well.

 

I have some minor understanding of how things work an what would be needed in order to get it all to work and I am going to find the voltage requirements and such for the speakers I decide on and soon a quick sketch of what I believe the 'schematics' should look like.

 

Any example builds would be nice to see too. I looked at few but nothing all that close to what I'm shooting for which I didn't know quite where to put this in at but I'm sort of going for a text based netbook/tablet.

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  • bluescreen
    0 bluescreen over 11 years ago

    Hi Tanner.

     

    Not sure if you already know about the PiFace Control and Display, but this might be a cool way for you to interface with your Pi. Also, check out our Raspberry Pi projects and beginner's series on the Raspberry Pi.

     

    Hope this helps!

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  • Former Member
    0 Former Member over 11 years ago in reply to bluescreen

    The PiFace Control and Display I did find to be interesting I was hoping to find a little bit bigger of a display but possibly a really good start.

     

    Thanks for the link to the beginner's series though going to watch those and see what I can find out.

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  • devinsheppard
    0 devinsheppard over 11 years ago

    Hi, if you decide to go with a keyboard you can fin inexpensive ones in amazon. Search the name Rii. Also on youtube theres a Brit in S Africa under the name mjlorton who has some great how too videos Ive learned a lot from. Try starting with electronics tutorial # 1. By about number 3 or so he will show you how to get the voltage you need from a battery. Hes also got other great videos. I especially like the ones on Arduino. Well hope this helps. Good luck.

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  • rew
    0 rew over 11 years ago in reply to Former Member

    We sell the "RPI_UI", the user interface. You get to chose the "bigger display" which has 20characters x 4 lines instead of the 16x2 of the piface.

     

    http://www.bitwizard.nl/catalog/product_info.php?products_id=123

     

    For the "control" part we have separate modules, so you can buy what you need instead of getting what the designer thought you might need. (which always ends up: "too much of these, too little of those").

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  • Former Member
    0 Former Member over 11 years ago

    Does anyone know where to find parts for something like a dvd player. The screen and speakers could potentially be compatible with a pi and they are the perfect size. The only problem is getting a hold of information on one of them.

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  • Former Member
    0 Former Member over 11 years ago in reply to Former Member

    Maybe you could try to make a system with SD cards to autorun a program in Raspbian Linux (you can google on how to do it) that runs a video. It's easier that way.

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  • Former Member
    0 Former Member over 11 years ago

    This might of some interest to you http://bit.ly/1bR1jur PiTFT screen which fits directly over the Raspberry Pi itself, perfect for portability.

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  • Former Member
    0 Former Member over 11 years ago

    Hi,

    Maybe you should try using the Motorola Atrix 4G Lapdock to make a raspberry pi laptop (Beginners Project)

     

    TIP: To open LXDE on Raspian type:

    startx

     

    P.S: Have you been able to boot the Pi (Just asking)

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  • Former Member
    0 Former Member over 11 years ago in reply to Former Member

    One thing, you dont need a non-audio screen you can just use a Television!!

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  • danielmcgraw
    0 danielmcgraw over 11 years ago

    Best thing to do (I've found) is to use the amazing method descrived on www.valdodov.com using this 3.2" screen which can be powered completely from the Raspberry Pi and a board can easily be made which just plugs in onto the GPIO header.

    http://www.sainsmart.com/arduino-compatibles-1/lcd-module/sainsmart-3-2-tft-lcd-display-touch-panel-pcb-adapter-sd-slot-for-arduino-2560.html

    Even has touch screen image If you like this and want to know how to do it, I can write a detailed blog post on a how to do it, or may even be able to make the circuit board for you with all the bits and sell it on ebay for about $30 + p+p if you would prefer.

    For the battery, a laptop battery would be OK, as long as any charging circuitry on the motherboard was removed as well. Best thing for this might be a Ni-Cad battery (less power than Li-ion but easier to charge correctly) with a low dropout voltage regulator or a switch mode power supply. If you got a 12V battery, the car cigarette lighter to USB adapter make excellent 12V to 5VDC converters.

    Any questions, let me know

    Dan McGraw

    M0WUT

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