Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: David Higton Newsgroups: comp.sys.raspberry-pi Subject: Re: latching relays Date: Mon, 10 Feb 2025 18:47:21 GMT Organization: Home Lines: 14 Message-ID: <6f361eed5b.DaveMeUK@BeagleBoard-xM> References: Injection-Date: Mon, 10 Feb 2025 19:47:28 +0100 (CET) Injection-Info: dont-email.me; posting-host="a9555540c08ab388f51b427ac6bd2928"; logging-data="1415588"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+E0J3kvtrXbcTMgafdJ9KmRlXGaAUA0Zw=" User-Agent: Messenger-Pro/8.03 (MsgServe/8.01) (RISC-OS/5.31) NewsHound/v1.55 Cancel-Lock: sha1:taUAFkMtDi8vxPdtmcmmLH8JJWY= Bytes: 1408 In message Mike Scott wrote: > Hi all. I think a latching relay is the way to go for a pico-based job I > have in mind. However the prevalent ones all seem to be controlled by a > pulse on a single input wire which flips and flops the state. > > No doubt they reset to a known-state at power-up. It has always been my understanding that they retain their current state indefinitely, until the next pulse. So there is no such thing as a reset state. David