Gambino's Pi3b+ Build

gambino37 · Post by **gambino37** » Tue Apr 23, 2019 10:40 am

Haven't posted a build in forever.

KonnorJ · Post by **KonnorJ** » Tue Apr 23, 2019 10:48 am

Looks great, have you tried exploring the 3A option?

rodocop · Post by **rodocop** » Tue Apr 23, 2019 10:49 am

Saw this on FB, but i'll say it again, very nice work.

gambino37 · Post by **gambino37** » Tue Apr 23, 2019 10:53 am

Thanks! And special thanks to rodocop for all your help on the battery monitor..... sadly it has pretty much been determined that one or both of Tinkerboy's components are causing massive voltage surges and throwing off the scripts.

gambino37 · Post by **gambino37** » Tue Apr 23, 2019 10:54 am

KonnorJ wrote: ↑
Tue Apr 23, 2019 10:48 am
Looks great, have you tried exploring the 3A option?

I'm going to in the future for sure.

infinitLoop · Post by **infinitLoop** » Wed Apr 24, 2019 7:14 am

do you have the tinkerboy dpi in there for the screen?

gambino37 · Post by **gambino37** » Wed Apr 24, 2019 7:37 am

infinitLoop wrote: ↑
Wed Apr 24, 2019 7:14 am
do you have the tinkerboy dpi in there for the screen?

Unfortunately, yes. Helder and I think it could be the main source of the surging problems. Mine was pulling an awful lot of voltage at times as well. At boot for sure, just like yours was. And also throughout operation. HoolyHoo showed me how to log what the battery monitor script was reading. It was insanely low at times and fluctuated the entire time it was on. Never did get the battery monitor to work. Funny how there is a brand new DPI adapter model on his store now.

Jonasbeavis · Post by **Jonasbeavis** » Thu Apr 25, 2019 6:14 am

Hi , what battery size and what cooling fan did you use? Im gonna make one with custom PCB and RPi3 A+

Great job there. Looks awesome!

gambino37 · Post by **gambino37** » Thu Apr 25, 2019 6:20 am

Helder Megabat and this fan. https://www.amazon.com/dp/B01DA3OFZE/re ... WCbNGV96Q7

tinkerBOY · Post by **tinkerBOY** » Mon May 06, 2019 9:08 pm

gambino37 wrote: ↑
Wed Apr 24, 2019 7:37 am

infinitLoop wrote: ↑
Wed Apr 24, 2019 7:14 am
do you have the tinkerboy dpi in there for the screen?
Unfortunately, yes. Helder and I think it could be the main source of the surging problems. Mine was pulling an awful lot of voltage at times as well. At boot for sure, just like yours was. And also throughout operation. HoolyHoo showed me how to log what the battery monitor script was reading. It was insanely low at times and fluctuated the entire time it was on. Never did get the battery monitor to work. Funny how there is a brand new DPI adapter model on his store now.

The new DPI Adapter on my website is basically the same with the previous version. I just re-designed it for easier soldering(cooking). Both uses around 160mA which is very little.

If you’re getting a low voltage warning then it’s either two things:
1. Something is consuming too much power more than your power supply can provide.
2. Or the power supply is not providing enough power.

Gambino's Pi3b+ Build

Gambino's Pi3b+ Build

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