From Newsgroup: comp.sys.raspberry-pi

This is ridiculous, I can find nowhere that tells me which end of the
40-pin header is pin 1. Can someone tell me please, or direct me to a
layout diagram which shows me.

Thank you.
--
Chris Green
·
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From Newsgroup: comp.sys.raspberry-pi

On 12/03/2026 16:41, Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of the
40-pin header is pin 1. Can someone tell me please, or direct me to a
layout diagram which shows me.

Thank you.

Try https://pinout.xyz/
--
Chris
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From Newsgroup: comp.sys.raspberry-pi

Chris Townley wrote:

Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of
the 40-pin header is pin 1. Can someone tell me please, or direct
me to a layout diagram which shows me.

Try https://pinout.xyz/

Great site.

Try this tidbit:

Pin 1 is the only pin with a square solder pad, which may only be
visible from the underside of your Pi.

--
Mike Easter
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From Newsgroup: comp.sys.raspberry-pi

Chris Townley <[email protected]> wrote:

On 12/03/2026 16:41, Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of the 40-pin header is pin 1. Can someone tell me please, or direct me to a layout diagram which shows me.

Thank you.

Try https://pinout.xyz/

How does that help?

Oh, am I supposed to work it out from that inset diagram below the
main one? If so it's too small to be sure on my laptop screen.
--
Chris Green
·
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From Newsgroup: comp.sys.raspberry-pi

On 12/03/2026 18:14, Chris Green wrote:

Chris Townley <[email protected]> wrote:

On 12/03/2026 16:41, Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of the
40-pin header is pin 1. Can someone tell me please, or direct me to a
layout diagram which shows me.

Thank you.

Try https://pinout.xyz/

How does that help?

Oh, am I supposed to work it out from that inset diagram below the
main one? If so it's too small to be sure on my laptop screen.

Facepalm!
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From Newsgroup: comp.sys.raspberry-pi

On 12/03/2026 16:41, Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of the
40-pin header is pin 1. Can someone tell me please, or direct me to a
layout diagram which shows me.

Thank you.

LOL!

It's in there buried at the bottom of the documentation

This is a handy thing to print out

https://i.sstatic.net/yHddo.png
--
"When a true genius appears in the world, you may know him by this sign,
that the dunces are all in confederacy against him."

Jonathan Swift.

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From Newsgroup: comp.sys.raspberry-pi

Chris,

Try https://pinout.xyz/

How does that help?

If nothing else, you *could* have concluded from that reply that googeling
for it yourself could give you what you are after.

Oh, am I supposed to work it out from that inset diagram below
the main one?

What ? From the "Legend" just below it with the text, "A+", "Zero: and "B+"
in *big* letters in the graphic to its right ? Yes, from that one.

Hint : notice the colors of the pins in both the pinout section and the
image in the legend below it.

If so it's too small to be sure on my laptop screen.

That sounds like a "you" problem.

Maybe you should find out how you can "zoom in" with your browser (in my FireFox its ctrl + ). Or use a software or even a hardware magnifying glass (the former is build into Win11).

Heck, you could even take a screenshot, dump it in some image-editing
program (paint?) and use its magnifying capabilities.

But no, instead of saying "thank you" you are whining about how it doesn't work for you, because you have next-to-zero idea about how your browser or google works.

Regards,
Rudy Wieser


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From Newsgroup: comp.sys.raspberry-pi

The Natural Philosopher <[email protected]d> wrote:

On 12/03/2026 16:41, Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of the 40-pin header is pin 1. Can someone tell me please, or direct me to a layout diagram which shows me.

Thank you.

LOL!

It's in there buried at the bottom of the documentation

This is a handy thing to print out

https://i.sstatic.net/yHddo.png

Yes, **that** is what I wanted, thank you! :-)
--
Chris Green
·
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From Newsgroup: comp.sys.raspberry-pi

Mike Easter <[email protected]d> wrote:

Chris Townley wrote:

Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of
the 40-pin header is pin 1. Can someone tell me please, or direct
me to a layout diagram which shows me.

Try https://pinout.xyz/

Great site.

Try this tidbit:

Pin 1 is the only pin with a square solder pad, which may only be
visible from the underside of your Pi.

Yes, that was the first thing I tried. My other Pis have a square pad
but the Pi Zero 2W doesn't, so no help there.
--
Chris Green
·
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From Newsgroup: comp.sys.raspberry-pi

Chris Green wrote:

Mike Easter

Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of
the 40-pin header is pin 1. Can someone tell me please, or direct
me to a layout diagram which shows me.

Try this tidbit:

Pin 1 is the only pin with a square solder pad, which may only be
visible from the underside of your Pi.

Yes, that was the first thing I tried. My other Pis have a square pad
but the Pi Zero 2W doesn't, so no help there.

Hmmm. All the pix I see for the Pi Zero 2W are square pin 1, at least on
one side.
--
Mike Easter
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From Newsgroup: comp.sys.raspberry-pi

On 12/03/2026 19:20, Chris Green wrote:

Mike Easter <[email protected]d> wrote:

Chris Townley wrote:

Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of
the 40-pin header is pin 1. Can someone tell me please, or direct
me to a layout diagram which shows me.

Try https://pinout.xyz/

Great site.

Try this tidbit:

Pin 1 is the only pin with a square solder pad, which may only be
visible from the underside of your Pi.

Yes, that was the first thing I tried. My other Pis have a square pad
but the Pi Zero 2W doesn't, so no help there.

That site includes a graphic showing the orientation
--
Chris
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From Newsgroup: comp.sys.raspberry-pi

In message <[email protected]>
Chris Green <[email protected]> wrote:

The Natural Philosopher <[email protected]d> wrote:

On 12/03/2026 16:41, Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of the 40-pin header is pin 1. Can someone tell me please, or direct me to a layout diagram which shows me.

Thank you.

LOL!

It's in there buried at the bottom of the documentation

This is a handy thing to print out

https://i.sstatic.net/yHddo.png

Yes, **that** is what I wanted, thank you! :-)

Also note that the rectangular legend around the connecter has one mitred corner; this has been a standard way to denote pin 1 for decades in the electronics indstry.

David
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From Newsgroup: comp.sys.raspberry-pi

On 12/03/2026 19:22, Chris Green wrote:

The Natural Philosopher <[email protected]d> wrote:

On 12/03/2026 16:41, Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of the
40-pin header is pin 1. Can someone tell me please, or direct me to a
layout diagram which shows me.

Thank you.

LOL!

It's in there buried at the bottom of the documentation

This is a handy thing to print out

https://i.sstatic.net/yHddo.png

Yes, **that** is what I wanted, thank you! :-)

I've been there etc.

There is a copious amount of online literature on this. The puzzle is
why you couldn't find it yourself...
--
"Strange as it seems, no amount of learning can cure stupidity, and
higher education positively fortifies it."

- Stephen Vizinczey


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From Newsgroup: comp.sys.raspberry-pi

On 12/03/2026 19:20, Chris Green wrote:

Mike Easter <[email protected]d> wrote:

Chris Townley wrote:

Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of
the 40-pin header is pin 1. Can someone tell me please, or direct
me to a layout diagram which shows me.

Try https://pinout.xyz/

Great site.

Try this tidbit:

Pin 1 is the only pin with a square solder pad, which may only be
visible from the underside of your Pi.

Yes, that was the first thing I tried. My other Pis have a square pad
but the Pi Zero 2W doesn't, so no help there.

Really? I haven't uses a 2 W yet, only the W...
But they are supposed to be pin compatible
--
“People believe certain stories because everyone important tells them,
and people tell those stories because everyone important believes them. Indeed, when a conventional wisdom is at its fullest strength, one’s agreement with that conventional wisdom becomes almost a litmus test of one’s suitability to be taken seriously.”

Paul Krugman

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From Newsgroup: comp.sys.raspberry-pi

On 12/03/2026 18:14, Chris Green wrote:

Chris Townley <[email protected]> wrote:

On 12/03/2026 16:41, Chris Green wrote:

This is ridiculous, I can find nowhere that tells me which end of the
40-pin header is pin 1. Can someone tell me please, or direct me to a
layout diagram which shows me.

Thank you.

Try https://pinout.xyz/

How does that help?

Oh, am I supposed to work it out from that inset diagram below the
main one? If so it's too small to be sure on my laptop screen.

https://pico2.pinout.xyz/
--
Brian Gregory (in England).
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From Newsgroup: comp.sys.raspberry-pi

Chris Green <[email protected]> wrote:

This is ridiculous, I can find nowhere that tells me which end of the
40-pin header is pin 1. Can someone tell me please, or direct me to a
layout diagram which shows me.

If only there was an FM... https://pip-assets.raspberrypi.com/categories/1088-raspberry-pi-pico-2-w/documents/RP-008304-DS-2-pico-2-w-datasheet.pdf

page 5.
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From Newsgroup: comp.sys.raspberry-pi

Sam Thomas <[email protected]> wrote:

Chris Green <[email protected]> wrote:

This is ridiculous, I can find nowhere that tells me which end of the
40-pin header is pin 1. Can someone tell me please, or direct me to a
layout diagram which shows me.

If only there was an FM... https://pip-assets.raspberrypi.com/categories/1088-raspberry-pi-pico-2-w/documents/RP-008304-DS-2-pico-2-w-datasheet.pdf

page 5.

sigh...wrong Pi flavor...on second pass, the Zero(2W) documentation
is sorely lacking, but it follows the convention of 1 being at the
end with the SD card slot. Square hole, like others have said.
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From Newsgroup: comp.sys.raspberry-pi

Sam Thomas <[email protected]> writes:

Chris Green <[email protected]> wrote:

This is ridiculous, I can find nowhere that tells me which end of the
40-pin header is pin 1. Can someone tell me please, or direct me to a
layout diagram which shows me.

If only there was an FM... https://pip-assets.raspberrypi.com/categories/1088-raspberry-pi-pico-2-w/documents/RP-008304-DS-2-pico-2-w-datasheet.pdf

page 5.

I bought some hardware yesterday, being shipped, a GPIO extender for my
pi500. Anyway, I also included a gpio guide for $2. If you go to pishop
and zoom in on the item, you may get enough detail to know which pin is
1

That's the best I can come up with.
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From Newsgroup: comp.sys.raspberry-pi

On 21/04/2026 23:09, Daniel wrote:

Sam Thomas <[email protected]> writes:

Chris Green <[email protected]> wrote:

This is ridiculous, I can find nowhere that tells me which end of the
40-pin header is pin 1. Can someone tell me please, or direct me to a
layout diagram which shows me.

If only there was an FM...
https://pip-assets.raspberrypi.com/categories/1088-raspberry-pi-pico-2-w/documents/RP-008304-DS-2-pico-2-w-datasheet.pdf

page 5.

I bought some hardware yesterday, being shipped, a GPIO extender for my pi500. Anyway, I also included a gpio guide for $2. If you go to pishop
and zoom in on the item, you may get enough detail to know which pin is
1

That's the best I can come up with.

I think we answered this several weeks ago?
--
The higher up the mountainside
The greener grows the grass.
The higher up the monkey climbs
The more he shows his arse.

Traditional

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