Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: "R.Wieser" Newsgroups: comp.sys.raspberry-pi Subject: Re: USB controlled mains switch Date: Mon, 20 Jan 2025 07:26:39 +0100 Organization: A noiseless patient Spider Lines: 36 Message-ID: References: Injection-Date: Mon, 20 Jan 2025 07:27:00 +0100 (CET) Injection-Info: dont-email.me; posting-host="eaee3a0ebdf2f9197d0781e922a0a727"; logging-data="3081589"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/L5DuUu+gCsKqZvRbKRu0RPxkFPvmFAorfq//BTB7+Jw==" Cancel-Lock: sha1:hylyHxpvlaAwLkNRX7dLKjyNHwo= X-Newsreader: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5512 X-Priority: 3 X-MSMail-Priority: Normal X-RFC2646: Format=Flowed; Response Bytes: 2216 Chris, >> Also, you say USB controlled. How do you imagine that ? As some kind of >> special USB device (for which it is hard to find a driver) ? > > As I have said previously, it's easy. E.g. > https://www.amazon.co.uk/Control-Intelligent-Channel-Controller-Support-default/dp/B07PWPF2DT Whohoo! They actually did it, a hobby-level relay driven by USB. I'm amazed. And I see there are no drivers needed as long as its used with Win XP or 7. I stand corrected. > Load 'usbrelay' to control (apt-get install usbrelay') One question though : (where and) how did you find that Linux driver ? Wait, what ? Under "Technical details" : Voltage ?5 Volts Wattage ?50 watts Something is fishy there ... and I only now realize that I do not see any mentioning for which voltage its output is rated. If the above is correct than they have rated it for 5 volts (5V x 10A = 50W), not 220 ... Do *NOT* use stuff above its voltage rating. The electrical track seperation between the (low voltage) driving electronic and (high voltage) output circuits might not be large enough. Regards, Rudy Wieser