search

pinout-xyz / Pinout.xyz

Source files for the Raspberry Pi Pinout documentation website.
http://pinout.xyz/
Creative Commons Attribution Share Alike 4.0 International
701 stars 198 forks source link

Unicorn Hats require Ground at pin 9 #185

Closed Pyroseza closed 7 years ago

Pyroseza commented 7 years ago

Title says it all

RogueM commented 7 years ago

is this a question or an affirmation?

... but, yes, affirmative: http://pinout.xyz/pinout/unicorn_hat

Pyroseza commented 7 years ago

An affirmation because I am trying to put jumpers between the hat and the pi so that I can use a motor hat alongside and couldn't figure out what was happening until I plugged the ground wire. Also read that all grounds are linked so it does not have to be at pin 9 bit can be any ground.

RogueM commented 7 years ago

hum, I'm pretty sure pin9 is a requirement. Some other may be connected to the ground plan but I don't think any other can be connected by themselves and the setup to work.

Pyroseza commented 7 years ago

Interesting, I'll test it and let you know. Do you think it's worth mentioning on the pages as requirement? I think it would have been quit handy to see it at a glance instead of googling for an hour. On Tue, 14 Feb 2017 at 17:57, RM notifications@github.com wrote:

hum, I'm pretty sure pin9 is a requirement. Some other may be connected but I don't think any other can be connected by themselves and the setup to work.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/Gadgetoid/Pinout.xyz/issues/185#issuecomment-279784081, or mute the thread https://github.com/notifications/unsubscribe-auth/AIElChf4dYg9--7BbUNjhtOrZVBATW0kks5rcerygaJpZM4L_yAS .

RogueM commented 7 years ago

that is what the blob next to pin9 means... obviously any and all electronic board requires vcc and ground. the pinout tell you all this info already, including which ground pins are electrically connected.

Pyroseza commented 7 years ago

Interesting I'll go read it now, I must've missed it.

Can you recommend a decent place on the web to read about gpio pins on the raspi?

I think I just confused myself earlier, also this is my first attempt with electronics. So I'm quite noob and have already burnt out 3 or so components for putting them in the wrong way.

Kind Regards, Jarrod Price

Sent from my iPhone

On 14 Feb 2017, at 19:38, RM notifications@github.com wrote:

that is what the blob means... obviously all and any elctronic board requires vcc and ground. the pinout tell you all this info already, including which ground are electronically connected.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

RogueM commented 7 years ago

I would recommend http://raspi.tv/rpi-gpio

Pyroseza commented 7 years ago

Thank you On Tue, 14 Feb 2017 at 19:51, RM notifications@github.com wrote:

I would recommend http://raspi.tv/rpi-gpio

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/Gadgetoid/Pinout.xyz/issues/185#issuecomment-279816089, or mute the thread https://github.com/notifications/unsubscribe-auth/AIElCh2Y2hx-nm9zH7Hy3Se1s-b3GKHsks5rcgWngaJpZM4L_yAS .