Solder USB Power Cable to Raspberry Pi

64,956

320

19

Micro USB plugs are rare in my household, but a bunch of USB cables have been lying around. So maybe it is possible to solder a USB cable directly to the Raspberry PI? Yes it is, Paul Bealing describes it very well here: http://www2.pmb.co.nz/blog/?p=1767.

Step 1: Cut the USB Cable, Remove the Data Lines

We just need the red and black power wires from the USB cable. Remove about 5cm of isolation and cut the white and green data wires. 

Step 2: Wrap the Strain-relief

To avoid the wires to be torn away, the cable is wrapped once around the video out. Please keep the orientation as shown in the image to avoid unwrapping. Then plunge the two wires through the hole in the middle of the board.

Step 3: Solder the Supply

Finally solder the wires to the board. Red (+5V / Vcc) is connected to the polyfuse F3 and black (0V / Gnd) to the protection diode D17. - Enjoy.

Share

    Recommendations

    • Make it Glow Contest 2018

      Make it Glow Contest 2018
    • PCB Contest

      PCB Contest
    • First Time Author

      First Time Author

    19 Discussions

    Actually, that's exactly the reason why you want to use pin 2/4 and 6/9, when you want to make something much heftier/secure than the polyfuse, especially when higher voltages are involved like in automotive applications (you really want serious filters there) or when you need stronger (but related) power sources (the 2.5" hard disk or your Arduino/Servos kinda need to be on the same GND, but powering from the USB or the GPIO (suicidal option) is going to leave your RPi dry...)

    0
    None
    hillary3

    1 year ago

    works fine, i used same model in this guide.

    0
    None
    Victor805

    2 years ago

    Thanks, it worked with my Raspberry model B

    0
    None
    Hoagie

    4 years ago on Introduction

    You can also feed power into the GPIO with 5V on Pin 4 and Gnd on Pin 6, but BEWARE, it bypasses the input fuse. It does avoid soldering to the Pi though.

    0
    None
    msmiley2

    4 years ago

    no micro USB cable available but lightening, everything is possible in DIY oO

    1 reply
    0
    None
    app0msmiley2

    Reply 4 years ago on Introduction

    Yeah, especially looking at the prices of these lightning cables, lol.

    Offtopic: woah, i still have that Shana userpic here.

    0
    None
    Obi-Wahn

    4 years ago on Introduction

    And if you solder a Mini-B-USB-Plug onto the PI, you just need to connect that cable then to the PI and there you have it: infinite powered PI

    xD

    0
    None
    LeeG

    4 years ago

    Probably of more use for compact model a projects than for the model b.

    0
    None
    jbrown120

    4 years ago

    Awesome for saving space