Newsportal USENET - Re: Going to use gpio for the first time

Sujet : Re: Going to use gpio for the first time
De : tnp (at) *nospam* invalid.invalid (The Natural Philosopher)
Groupes : comp.sys.raspberry-pi
Date : 22. Apr 2026, 20:40:58

Autres entêtes

Organisation : A little, after lunch
Message-ID : <10sb88a$2gl78$2@dont-email.me>
References : 1 2
User-Agent : Mozilla Thunderbird

On 22/04/2026 17:08, Michael Schwingen wrote:

On 2026-04-21, Daniel <me@sc1f1dan.com> wrote:
Are there any newbie things I should look out for while I dive in?
I'll be doing all the work on my trusty stock pi500.
Be careful about different voltage levels. The atmega *can* run on 5V, while
the raspberry's GPIO pins only tolerate 3.3V.

In theory., In practice they can tolerate 5V if not from an uber low impedance source

If you run the atmega from 3.3V too (ideally sourced from the pi, so they
come up at the same time), you have fewer problems.
cu
Michael

--
"Fanaticism consists in redoubling your effort when you have forgotten your aim."
George Santayana

Date	Sujet	#	Auteur
22 Apr 26	Re: Going to use gpio for the first time	8	Michael Schwingen
22 Apr 26	Re: Going to use gpio for the first time	6	The Natural Philosopher
22 Apr 26	Re: Going to use gpio for the first time	5	druck
22 Apr 26	Re: Going to use gpio for the first time	4	The Natural Philosopher
22 Apr 26	Re: Going to use gpio for the first time	2	Theo
23 Apr 26	Re: Going to use gpio for the first time	1	The Natural Philosopher
24 Apr 26	Re: Going to use gpio for the first time	1	Computer Nerd Kev
23 Apr 26	Re: Going to use gpio for the first time	1	rbowman

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