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Pi Zero 2W - which end is pin 1??????

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  Pi Zero 2W - which end is pin 1?????? Chris Green <cl@isbd.net> - 2026-03-12 16:41 +0000
    Re: Pi Zero 2W - which end is pin 1?????? Chris Townley <news@cct-net.co.uk> - 2026-03-12 17:38 +0000
      Re: Pi Zero 2W - which end is pin 1?????? Mike Easter <MikeE@ster.invalid> - 2026-03-12 11:11 -0700
        Re: Pi Zero 2W - which end is pin 1?????? Chris Green <cl@isbd.net> - 2026-03-12 19:20 +0000
          Re: Pi Zero 2W - which end is pin 1?????? Mike Easter <MikeE@ster.invalid> - 2026-03-12 12:54 -0700
          Re: Pi Zero 2W - which end is pin 1?????? Chris Townley <news@cct-net.co.uk> - 2026-03-12 20:15 +0000
          Re: Pi Zero 2W - which end is pin 1?????? The Natural Philosopher <tnp@invalid.invalid> - 2026-03-13 11:04 +0000
      Re: Pi Zero 2W - which end is pin 1?????? Chris Green <cl@isbd.net> - 2026-03-12 18:14 +0000
        Re: Pi Zero 2W - which end is pin 1?????? mm0fmf <none@invalid.com> - 2026-03-12 18:34 +0000
        Re: Pi Zero 2W - which end is pin 1?????? "R.Wieser" <address@is.invalid> - 2026-03-12 20:27 +0100
        Re: Pi Zero 2W - which end is pin 1?????? Brian Gregory <void-invalid-dead-dontuse@email.invalid> - 2026-03-18 14:50 +0000
    Re: Pi Zero 2W - which end is pin 1?????? The Natural Philosopher <tnp@invalid.invalid> - 2026-03-12 19:12 +0000
      Re: Pi Zero 2W - which end is pin 1?????? Chris Green <cl@isbd.net> - 2026-03-12 19:22 +0000
        Re: Pi Zero 2W - which end is pin 1?????? David Higton <dave@davehigton.me.uk> - 2026-03-12 22:31 +0000
        Re: Pi Zero 2W - which end is pin 1?????? The Natural Philosopher <tnp@invalid.invalid> - 2026-03-13 11:03 +0000
    Re: Pi Zero 2W - which end is pin 1?????? Sam Thomas <sam@noneya.com> - 2026-03-26 17:39 +0000
      Re: Pi Zero 2W - which end is pin 1?????? Sam Thomas <sam@noneya.com> - 2026-03-26 17:56 +0000
      Re: Pi Zero 2W - which end is pin 1?????? Daniel <me@sc1f1dan.com> - 2026-04-21 15:09 -0700
        Re: Pi Zero 2W - which end is pin 1?????? The Natural Philosopher <tnp@invalid.invalid> - 2026-04-22 09:55 +0100

#37815 — Pi Zero 2W - which end is pin 1??????

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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#37816

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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#37817

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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#37823

Mike Easter <MikeE@ster.invalid> 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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#37824

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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#37825

On 12/03/2026 19:20, Chris Green wrote:
> Mike Easter <MikeE@ster.invalid> 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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#37830

On 12/03/2026 19:20, Chris Green wrote:
> Mike Easter <MikeE@ster.invalid> 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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#37818

Chris Townley <news@cct-net.co.uk> 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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#37819

On 12/03/2026 18:14, Chris Green wrote:
> Chris Townley <news@cct-net.co.uk> 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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#37821

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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#37870

On 12/03/2026 18:14, Chris Green wrote:
> Chris Townley <news@cct-net.co.uk> 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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#37820

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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#37822

The Natural Philosopher <tnp@invalid.invalid> 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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#37827

In message <adgb8m-uc1t2.ln1@q957.zbmc.eu>
          Chris Green <cl@isbd.net> wrote:

> The Natural Philosopher <tnp@invalid.invalid> 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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#37829

On 12/03/2026 19:22, Chris Green wrote:
> The Natural Philosopher <tnp@invalid.invalid> 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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#37901

Chris Green <cl@isbd.net> 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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#37902

Sam Thomas <sam@noneya.com> wrote:
> Chris Green <cl@isbd.net> 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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#37927

Sam Thomas <sam@noneya.com> writes:

> Chris Green <cl@isbd.net> 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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#37929

On 21/04/2026 23:09, Daniel wrote:
> Sam Thomas <sam@noneya.com> writes:
> 
>> Chris Green <cl@isbd.net> 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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