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Recent content by oyvdahl

  1. oyvdahl

    led moving message display

    Sure! What do you need help with? Oyvind
  2. oyvdahl

    how to convert 12V dc to 5V DC?

    I don't think you need a current limiter. I would go for nitishn5's suggestion. Just use a 7805 for 5V and the battery directly for the motor.
  3. oyvdahl

    Some kind of controller, I need some direction

    I don't think there will be any problem with lag in response time. I've read somewhere that the xbox controller uses a proprietary technology, so I don't think that will be an option.
  4. oyvdahl

    Arduino Uno - VS1053 - SD card. No MP3 shield used!

    Playing an mp3 requires decoding of the mp3 files which I don't think the Arduino is fast enough to do. It's probably why the mp3 shield is a shield and not just a library.
  5. oyvdahl

    how to convert 12V dc to 5V DC?

    If you don't need to limit the current you can do something like this...
  6. oyvdahl

    Juggling two USB devices with one USB host (MAX3421E)

    I think there might be some problems with this. I believe the USB host will query USB devices from time to time to check if they are working properly (I haven't double checked this) I would suggest using a USB hub chip like this one https://www.ti.com/product/tusb2036 I used it a couple of...
  7. oyvdahl

    Looking for a 1"x1" Touchpad for Arduino

    Maybe you can use something like this: **broken link removed** It's a bit bigger, but maybe you can find some smaller ones on ebay or something. Cheers! Oyvind
  8. oyvdahl

    Voltage, Current, and Temperature measurement

    I just took a quick look at that link and it has a very descriptive schematic diagram that you can use for as your shopping list..
  9. oyvdahl

    051205 Measuring Speed Module

    I have no idea, but if I were you I would ask the people I bought it from.
  10. oyvdahl

    Some kind of controller, I need some direction

    Hey Kabona My initial thoughts are that there are two ways of doing this: 1. Make a circuit that takes the output of the controller as input, manipulate the input in the way you want, then forward the manipulated data to the xbox 2. Make a circuit that is implemented between the buttons and...
  11. oyvdahl

    Through-wall imaging on a robot

    I can't really give out any information on Novelda's products. I am under NDA. But if you contact them, you'll get an answer from them. I know they have had some cooperation with universities earlier..
  12. oyvdahl

    Through-wall imaging on a robot

    There is no online store, so you'll just have to contact them if you want to buy. But it is a bit expensive, so if you don't have a big budget, then that's probably not the way to go. Are you using a different radar module? Or are you developing the radar from scratch?
  13. oyvdahl

    Through-wall imaging on a robot

    Yes it's open source, but it is discontinued because we did not get enough interest in the project. We used a radar chip from Novelda (www.novelda.no) which is really good for this sort of project. You can contact them for more info.
  14. oyvdahl

    How to create your own Arduino shield

    I am teaching a free webinar on how to create your own Arduino shield. I thought it might be interesting for some of the people here on this forum. The focus is on the practical skills needed to create your Arduino Shield. More information: **broken link removed** There is still some time...
  15. oyvdahl

    Free eBook for beginners and hobbyists: "Creating Cheap Circuit Boards"

    Woho! I finished my first eBook =) It is a book aimed at beginner's and hobbyists where I explain how to create professionally-made circuit boards on the cheap ;) You can download it for free on my website www.build-electronic-circuits.com I would love to hear your feedback! All the best...

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