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My project Development case Idea

chrisdracko

My project Development case idea


Due to limited space this case would be quick to set up as a multi functional development flight case


The case lid will be holding a 7“ vga lcd display this display works on 12v  the case lid will also have access to the raspberry pi gpio pins and the arduino gpio pins  and have the ability to connect the leds under then with jumper cables there will also be two  20mm speakers available that is connected to the raspberry pi via a small amplifier running about 5v i'm guessing


image


The bottom of the flight case will have to levels the bottom level will hold the raspberry pi and the arduino as well as a usb hub.

the top level would be interchangeable to allow for expansion  like holding a breadboard or led matrix. or relays   image


Can you help


I want to power the main components with one power supply this will need at least one 12v line as well as three  5v lines able to supply the opriate amps


lcd  Supply Voltage: DC 9-35V

Arduino 5v

Raspberry Pi 5v

usb hub 5v


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  • 0 in reply to chrisdracko

    I like how your project is going image

     

    To supply projects, I find using 115 wall voltage and a power supply with IEC type input is the best. I've used these as well as cannibalized power supplies out of laser printers. Just note that Arduinos really prefer not to be supplied 5V, instead wanting 7 or 9V. I have found timing behavior changes on Arduinos when powered on USB VS DC in.

     

    Another thought: search local plastic supply houses for scrap plastic signboard. It makes fantastic mounting plate for projects. You can drill and tap the sign board and mount boards to it with nylon spacers or via standoffs. Additionally, you can use "P straps" to fix cabling into place.

     

    image Chris

  • 0 in reply to Former Member

    Thank you for your interest in my little project and your input i'm only starting getting back into electronics recently and am having trouble getting to grips with it all. i wanted to use clear plastic for the case but due to cost and availability I'm having to make alterations in my idea as I come across them but learning as I go. as for powering the Arduino I wasn't shore what the voltage was for the dc jack or if i could have USB plugged in at the same time but even as a newbie  I seem to be making progress on this project regardless or my disabilities.

  • 0 in reply to chrisdracko

    You can power Arduino from USB and/or the DC jack at same time. But, like I mentioned if DC jack < 7V, when unplugging the USB jack, the board may behave differently. As most of my projects are not connected to computer afterwards, I have one Arduino Uno for development in which I removed the fuse between USB and the DC input. This means the board is only powered by the DC input.

     

    IMHO, interconnecting boards and power routing is among the more difficult part of small electronics.

  • 0 in reply to Former Member

    So I could just create a USB lead without the power lines connected that way i wouldn't have to modify the board directly.

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