Introduction: Solder USB Power Cable to Raspberry Pi

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.

Comments

author
ElegantAndrogyne (author)2014-04-06

Why not use the GPIO pins 2 or 4 for +5VDC and 6 or 9 for GND?

author

I want to keep the fuse in action.

author

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...)

author
hillary3 (author)2017-02-24

works fine, i used same model in this guide.

author
Victor805 (author)2016-04-18

Thanks, it worked with my Raspberry model B

author
LP700-4 (author)2015-05-20

It works.

author
ochâtelain (author)LP700-42015-05-20

Thank you for the feedback

author
fourleggedostrich (author)2015-01-26

Anyone know how to do this with the model A+ (or B+)?

author
Amaury Van Espen (author)2014-07-12

Easy to DIY. Very usefull with an USB HUB or switchable power supply

author
Erisick (author)2014-04-09

is this for power?

author
ochâtelain (author)Erisick2014-04-16

To supply power

author
Hoagie (author)2014-04-06

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.

author
msmiley2 (author)2014-04-03

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

author
app0 (author)msmiley22014-04-06

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

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

author
Obi-Wahn (author)2014-04-06

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

author
LeeG (author)2014-04-03

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

author
Penolopy Bulnick (author)2014-04-02

What happens to the white and green ones? How come you do not need them?

author

They are Data cables, no useful voltage comes from them.

author
jbrown120 (author)2014-04-01

Awesome for saving space

About This Instructable

59,887views

317favorites

License:

More by ochâtelain:Solder USB-cable to Arduino UNO (clone)Arduino command-line tool "MiniPirate"Chalieplexing 4 RGB-LEDs with 4 wires on Arduino
Add instructable to: