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

Mar 12, 2026 Last reply: 2 months ago 17 Replies

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/

Great site.

Try this tidbit:

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.

LOL!

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

This is a handy thing to print out

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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,

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

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.

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

Hmmm. All the pix I see for the Pi Zero 2W are square pin 1, at least on one side.

That site includes a graphic showing the orientation

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

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...

Really? I haven't uses a 2 W yet, only the W... But they are supposed to be pin compatible

https://pico2.pinout.xyz/

If only there was an FM...

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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.

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?

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