Multiple Rasberry Pis to a Power Supply? August 08, 2014 04:55PM |
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Re: Multiple Rasberry Pis to a Power Supply? August 08, 2014 06:14PM |
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Re: Multiple Rasberry Pis to a Power Supply? August 08, 2014 06:48PM |
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Re: Multiple Rasberry Pis to a Power Supply? August 09, 2014 09:29AM |
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Re: Multiple Rasberry Pis to a Power Supply? August 11, 2014 02:27PM |
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Re: Multiple Rasberry Pis to a Power Supply? August 11, 2014 04:15PM |
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Re: Multiple Rasberry Pis to a Power Supply? August 11, 2014 04:47PM |
Registered: 10 years ago Posts: 102 |
Quote
3dkarma
Starting at the power supply, it looks like he's run a red wire from a positive terminal to a power distribution block and run 6 or 7 from there to a chop block, which then connects to wires leading to the positive power supply pins of individual raspberry pi's (although the last part is a guess). Ditto for black / negative terminal, rinse and repeat for each available negative and positive terminal and you're running lots of pi's from your power supply. Red and black alternate along the chop block so you get a pair of wires next to each other providing positive / negative to each individual pi respectively.
Is that the info you're after?
Re: Multiple Rasberry Pis to a Power Supply? August 12, 2014 03:16AM |
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Re: Multiple Rasberry Pis to a Power Supply? August 12, 2014 10:24AM |
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Re: Multiple Rasberry Pis to a Power Supply? August 12, 2014 03:40PM |
Registered: 10 years ago Posts: 102 |
Quote
cdru
You can power the rpi via the GPIO header, but it's not recommended. You're bypassing the internal fuse, diode, voltage regulation, and capacitors for smoothing out the power. If you're careful, sure you might be able to get by with a decent power supply. But one oops and you've got a fried pi and not one of those tasty ones with the fruit filling. Just get some cheap usb cables from Monoprice of the length you need, cut off one end, and use the red and black wires to power the pi the proper way via the USB port and your power supply. Or you could get a bunch of usb connectors, solder them to a circuit board, and make a custom "outlet strip" of sorts.
Re: Multiple Rasberry Pis to a Power Supply? August 13, 2014 09:25AM |
Registered: 10 years ago Posts: 869 |
As long as you won't need to quickly add and remove additional cables, strip off an inch or two from each cable, twist them together, solder them along with a pigtail that goes to the power supply. Wrap the soldered connector in electrical tape or shrink tubing. You may be able to just use a big enough wire nut since the wires are small, but with that many a soldered connection would be more reliable.Quote
kfootball15
I think I would run into a similar problem with connecting all the USB cables to the power supply. How do I go about connecting all of those red and black wires to the power supply at the same time?
Re: Multiple Rasberry Pis to a Power Supply? August 14, 2014 02:55PM |
Registered: 9 years ago Posts: 117 |