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  • Author Author: apn201
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Something is still missing

apn201

A While ago I got a new shipment. It's a 8X8 LED matrix kit for Raspberry Pi. The idea is that I'll assembly the kit and use it to practice programming on the device - and then eventually I'll just replace the LEDs with resistors or something.. at least that's the theory.

I'm still missing something and that is the motivation to start. I know once I start, things will move quickly as I cannot leave any problem unsolved, but also, as I know that this project will consume all my free time for some weeks. I'm afraid to start.


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  • in reply to apn201

    The heat pad is effectively the same as what I was suggesting (resistance wire laid back and forth across the pad); I hadn't thought of repurposing something like that but it's a very easy way to get going if it does what you want it to do visually.

     

    Having slow dissipation of the heat (no forced cooling) could be interesting from a visual point of view - the images would appear quickly and then fade slowly over several minutes like lingering ghosts of themselves.

     

    I really ought to stop trying to do your project for you. Maybe I should join you and Dubbie as an independent participant and have a go myself.

  • in reply to jc2048

    That's a good idea. Frankly I have not yet been thinking so far. My plan was first to figure out how to control a matrix display with the LED-unit and maybe trying to connect it to the camera etc. Once that is ready I need to replace the LEDs with MOSFET's that control the actual load. If that is resistors or resistance wire loops, does not really matter. That is probably the easiest part.

    I have been thinking of different ways to insulate or cool down the heat elements to prevent "leaking" and to make changes more quick, but I have not yet tested it in real life. My early tests I made with a static heat pad. I also have a peltier element which could be used.


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  • in reply to dubbie

    Nice to know that I'm not the only one. The feeling of having "so much time" and "if I started, I could easily get this done" just makes it too comfortable to take it easy - until you notice there is one week left and you have not yet started.

     

    Also I have not made the official application - although if I did and was accepted, there would be more pressure to get things done.

  • in reply to neuromodulator

    As stated in my earlier post, I have not applied to be an official challenger. I just privately purchased the same stuff that comes with the kit and additionally this LED kit. Also I have some other components lying around from earlier projects.

  • Juha,

     

    I often find myself in a similar situation, especially when the sun is shining, as it is at the moment. I often tell my wife that I'm inversely powered by the sun - whenever it shines I just have to sit/lie down in the sun and have a doze.

     

    It is also the reason I have not made an official PiCasso Design Challenge application. I managed to get an old Raspberry Pi B running connected via Ethernet, for the purposes of gaining experience and then just stopped. There's still time for an unofficial entry though.

     

    Dubbie