Date: Tue, 17 Sep 2024 17:39:28 +0200
MIME-Version: 1.0
User-Agent: Mozilla Thunderbird
Subject: Re: RP2040 reset idea
Newsgroups: comp.sys.raspberry-pi,sci.electronics.design
References: <biphejl03r86ebf5dkpcav9ud7u8vcjclj@4ax.com>
 <nnd$3cd397cd$6a5ab0b5@261ae0521dda81d4>
 <3h3jej5072rp8v7dou767q1k75j7jrneeu@4ax.com>
Content-Language: en-US
From: Arie de Muijnck <noreply@ademu.nl>
In-Reply-To: <3h3jej5072rp8v7dou767q1k75j7jrneeu@4ax.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Message-ID: <nnd$7b9deacc$65338948@16dfe35ab828c720>
Organization: KPN B.V.
Path: ...!weretis.net!feeder9.news.weretis.net!usenet.blueworldhosting.com!diablo1.usenet.blueworldhosting.com!feed.abavia.com!abe007.abavia.com!abp003.abavia.com!news.kpn.nl!not-for-mail
Lines: 15
Injection-Date: Tue, 17 Sep 2024 17:39:27 +0200
Injection-Info: news.kpn.nl; mail-complaints-to="abuse@kpn.com"
Bytes: 1469

On 2024-09-17 16:15, john larkin wrote:
> On Tue, 17 Sep 2024 10:49:58 +0200, Arie de Muijnck <noreply@ademu.nl>
> wrote:
................
>> I think your idea would work OK, just a bit complex. Just NEVER short a cap with a switch (or relay) without a series resistor.
> 
> I don't think the 10u cap will weld the contacts of the pushbutton.
> 

Probably not weld, but destroy the plating. The peak current is very high.
A 100R SMD resistor is not that expensive...

Arie