BBS:      TELESC.NET.BR
Assunto:  Re: Going to use gpio for the first time
De:       The Natural Philosopher
Data:     Wed, 22 Apr 2026 20:40:58 +0100
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On 22/04/2026 17:08, Michael Schwingen wrote:
> On 2026-04-21, Daniel  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


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