mjack
Posts: 2
Joined: Mon May 20, 2013 5:57 am
Location: Denmark

Display power and Pi Cobbler Plus

Thu Apr 18, 2019 5:35 am

I've installed the display in a Pibow frame, and I'm using a micro-USB power supply to power the Pi, and then two jumper wires to power the display, as seen in this photo:

PiBow back

Now I want to connect a Pi Cobbler so I can work with a breadboard in front of the display, similar to what is seen in this photo:

PiBow front

The 40-pin ribbon cable (obviously) uses all 40 pins on the Pi, so could I simply solder the two jumper wires to the proper pins, bottom-side of the Pi board?

A Dual microB USB Power Cable seems to take up too much space on top of the display.

Andyroo
Posts: 3284
Joined: Sat Jun 16, 2018 12:49 am
Location: Lincs U.K.

Re: Display power and Pi Cobbler Plus

Thu Apr 18, 2019 10:06 am

The GPIO pins are often all covered - a bane of my Pi life :lol:

You can get multiplexers in two or three strips that duplicate the pins but it begins to look messy and may hang below the bottom of the monitor :lol:

I’ve soldered onto the pins directly and as long as you do not melt the plastic block you should be fine BUT you may find this cable saves you a little job https://thepihut.com/products/short-mic ... pi-display
Need Pi spray - these things are breeding in my house...

mjack
Posts: 2
Joined: Mon May 20, 2013 5:57 am
Location: Denmark

Re: Display power and Pi Cobbler Plus

Thu Apr 18, 2019 2:00 pm

you may find this cable saves you a little job https://thepihut.com/products/short-mic ... pi-display
A few commenters mention that they have problems with power demands due to 0.5A max through the USB connection display -> Pi.

When I'm prototyping, I don't need additional challenges due to power delivery 8-)

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