ThomasDr
Posts: 55
Joined: Tue May 20, 2014 2:16 pm

Best way to Power a Pi3 without USB?

Tue May 17, 2016 10:59 am

Hallo,

Where is the best place to supplied a Rpi 3 with power, when i not use the micro USB?
Over the GPIO or solder parallel to D5?

regards
Thomas

darkbibble
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Re: Best way to Power a Pi3 without USB?

Tue May 17, 2016 12:10 pm

you can power the pi via GPIO by connecting to the +5v and the grnd pins, BUT this can be risky as it bypasses the pi safety fuse.
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klricks
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Re: Best way to Power a Pi3 without USB?

Tue May 17, 2016 1:00 pm

ThomasDr wrote:Hallo,

Where is the best place to supplied a Rpi 3 with power, when i not use the micro USB?
Over the GPIO or solder parallel to D5?

regards
Thomas
Solder +5V to test pad PP1 or PP2 or to fuse pad closest to the edge of the board. Any of these 3 points are before the fuse ....same as using micro USB. (D5 or GPIO is after the fuse).

For Ground I would use any of the port shield hold down tabs on the bottom of the board. RJ45..HDMI etc.
Unless specified otherwise my response is based on the latest and fully updated Raspbian Buster w/ Desktop OS.

davenull
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Re: Best way to Power a Pi3 without USB?

Tue May 17, 2016 2:42 pm

hello,
just out of interest:
what and where is PP1 or PP2 ?
#define S sqrt(t+2*i*i)<2
#define F(a,b) for(a=0;a<b;++a)
float x,y,r,i,s,j,t,n;int main(){F(y,64){F(x,99){r=i=t=0;s=x/33-2;j=y/32-1;F(n,50&S){t=r*r-i*i;i=2*r*i+j;r=t+s;}if(S){PointOut(x,y);}}}for(;;);}

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Mandrewpi
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Re: Best way to Power a Pi3 without USB?

Tue May 17, 2016 2:50 pm

davenull wrote:hello,
just out of interest:
what and where is PP1 or PP2 ?
They are labeled on the back side of the board under the micro usb input.
A computer is only as smart as its programmer. ;)

I own:
Pi B rev.2, Pi 2 B, Two Pi 3 B, Two Pi 3 b+, Pi 4 2Gb, Pi Zero 1.2, Pi Zero 1.3, Two Pi Zero Ws.
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davenull
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Re: Best way to Power a Pi3 without USB?

Tue May 17, 2016 2:55 pm

aha, thank you!
#define S sqrt(t+2*i*i)<2
#define F(a,b) for(a=0;a<b;++a)
float x,y,r,i,s,j,t,n;int main(){F(y,64){F(x,99){r=i=t=0;s=x/33-2;j=y/32-1;F(n,50&S){t=r*r-i*i;i=2*r*i+j;r=t+s;}if(S){PointOut(x,y);}}}for(;;);}

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