• Arduino Bytes 02: How to Use the Board Manager

  • How to prototype a gerber file with a software?

    Dear: Element 14

    You should know that my project is almost complete now. All I need to do for my rocket controller is to prototype it and to also to do the electrical mechanical part of the project. See I need to do that and then I am stuck on programming…

  • How to prototype a PCB #3

    Dear: Element 14

    You should know that prototyping my PCB is almost finished for my model rocket launcher. First of all today I decided to start a new PCB because my old one was too difficult to work with. Then I had a brilliant idea inspired by somebody…

  • How to prototype a PCB #2?

    Dear: Element 14

    Hello I have made many changes to my Rocket Controller since you last saw me. First of all I added voltage regulators to my PCB to make my PCB be able to amplify the current to 9 volts to detonate the ignition. Also I have made my PCB…

  • OT: Eagle Cad PCBs



    Sorry, this is not a direct Arduino question (but I am building the PCB for a arduino project). I could'nt find a discussion board on designs :-)


    I have Eagle CAD 6.3 and I would like to have multiple version of PCBs for my schematic. (To keep the…

  • Help with prototype


    I'm new to the Element14 community and I'm hoping for some advice. I'm trying to create a prototype for a product idea I have that doesn't exist on the market. I'm a high school bio teacher, so I don't have the knowledge on how to do the circuitry…

  • ultrasonic flow meter




    Me and my friend are mechatronics engineering students. We need to make a project about flow control.


    Our university have an aggrement with a valve company. So we can use their labrotary.


    We would like to make an electronic card which for see flow…

  • External button interface design help and review

    Hi, I made this schematic for my project of connecting multiple push buttons via TS/TRS/TRRS (mic jack) don’t ask why i didn’t just use TS lets just say check before you buy . 1 thing im not sure about is the 10k pull-up resistor do I only need that one…

  • Any recommendation about SMT machines?

    Since I and my friend wanted to start small batch production, we hope to get some suggestion from you guys about SMT production line, including a solder printer, a PnP machine and a reflow oven. But  we don't have too much budget, does anyone have any…

  • Tilt-Pan Low Cost MicroCamera

        • Introductory note
    • What this document is for
    • First step: mechanical parts for the camera structure
      • Component design: technology and material
      • Software
      • FInished components ready for assembly
    • Second step: camera assembly
    • Next step: the electronic…
  • Free Reference Design data for Arduino Uno & Arduino Uno SMD Rev3!

    For all the hobbyist, maker community, students and beyond - we're supplying free reference designs that you can work with, take from and build up to make

    your own designs!    No need to start from scratch!


    These PADS Arduino Uno & Arduino Uno…

  • Turn your face tanner into a pcb UV lamp

    Hello all,


    well, there is nothing new about using solarium lamps for photopositive coated pcbs and I wanted to do the same. So I bought me a used face tanner even with built-in time switch. In the tests it turned out that the steps of the time switch …

  • Toner Transfer method for inkjet printers?

    So I spent a rather fruitless Monday printing, ironing, cleaning, repeating, all in a bid to get the toner transfer method to work. I used an HP 7520, printing on photo paper, advertising circulars, and regular 20 pound bond printer paper, (using both…