Red hot pi, normal?

Lpoolm · Post by **Lpoolm** » Thu Dec 08, 2016 2:01 pm

abrugsch wrote:Have you got a volt meter? Is it putting out the right level?

I will give that a check tomorrow, thanks again.

fcib · Post by **fcib** » Fri Dec 09, 2016 5:35 am

abrugsch wrote:Have you got a volt meter? Is it putting out the right level?

The PAM2306 regulator used in the pi zero accepts up to 6.5V input, so if the voltage from your power source exceeds this, you have a problem.

Lpoolm · Post by **Lpoolm** » Fri Dec 09, 2016 9:39 am

changed my powerboost over and have same issue, still overheats.
can not seem to get my multimeter to get me a good reading? (maybe i cant use it?)
i will post a picture in a bit of wiring to powerboost see if that helps.

abrugsch · Post by **abrugsch** » Fri Dec 09, 2016 11:59 am

fcib wrote:
abrugsch wrote:Have you got a volt meter? Is it putting out the right level?
The PAM2306 regulator used in the pi zero accepts up to 6.5V input, so if the voltage from your power source exceeds this, you have a problem.

Unless he's not powering via micro usb and is hitting the power rail directly and bypassing the regulator

fcib · Post by **fcib** » Fri Dec 09, 2016 6:36 pm

abrugsch wrote:
fcib wrote:
abrugsch wrote:Have you got a volt meter? Is it putting out the right level?
The PAM2306 regulator used in the pi zero accepts up to 6.5V input, so if the voltage from your power source exceeds this, you have a problem.
Unless he's not powering via micro usb and is hitting the power rail directly and bypassing the regulator

Ah, interesting. I thought the test pads for power would go through the same regulator as the microusb plug. Are you saying they dont?

abrugsch · Post by **abrugsch** » Fri Dec 09, 2016 10:49 pm

I don't know. But it's worth considering. Powering via the 40 pin header 5v rail certainly bypasses it....

Oxodao · Post by **Oxodao** » Sat Dec 10, 2016 2:04 am

That feels like a shortcut to me...
Try testing every elements individually and give the results.

abrugsch · Post by **abrugsch** » Sat Dec 10, 2016 9:02 am

Oxodao wrote:That feels like a shortcut to me...
Try testing every elements individually and give the results.

I wasn't suggesting bypassing it, just that he may have. I'm still advocating testing all the things...

Lpoolm · Post by **Lpoolm** » Sat Dec 10, 2016 9:12 am

thanks for the input. i went back to basics and had the following set up but missed off the powerstrip just had it direct to the pi. left it on for a few hours and just got warm/not hot. obviously had no screen/controller or anything else so it shouldnt.
i feel like it has to do with everything connected to the powerstip?

: Banggood Power Supply Wiring.jpg (344.24 KiB) Viewed 10316 times

so i have made a "very" rough pic below, does anyone see a problem with me powering my pi direct as above than also have seperate wires coming off the powerboost to a seperate powerstrip?

: FreshPaint-7-2016.12.10-03.53.54.png (767.32 KiB) Viewed 10316 times

so the pi gets wired direct and than seperate all the other bits draw there power, screen, usb hub and rest?

Lpoolm · Post by **Lpoolm** » Sat Dec 10, 2016 2:21 pm

Well... It didn't work?
Still overheats.
However when I have the pi out of the gameboy case it doesn't overheat? So it's to do with it being enclosed....
I'm finding it frustrating as there are so many builds with the same parts in the show off corner that work perfect.
Should I replace all the wires within my circuit with thicker wires? Is this my next option?

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