On a slightly similar note.. I'm considering using a raspberry pi or similar to do variable paging messages for various "visitor" events at the manufacturing facility. For instance someone coming up the drive or pushing a doorbell.
Just never got beyond the doorbell and it's a lot of effort to go through when a stock door chime works. On Tue, Sep 6, 2022, 3:26 PM Chuck McCown <ch...@go-mtc.com> wrote: > IOT, will need a web interface and must have SNMP management too. > May as well put a screen and browser on it too. > > *From:* Forrest Christian (List Account) > *Sent:* Tuesday, September 6, 2022 2:40 PM > *To:* AnimalFarm Microwave Users Group > *Cc:* Chuck McCown > *Subject:* Re: [AFMUG] OT: Electronic question > > Hook the whole thing up to a PLC. Lots of control then. š > > On Tue, Sep 6, 2022, 10:18 AM Chuck McCown via AF <af@af.afmug.com> wrote: > >> Resistor in parallel will draw more current and perhaps allow the >> solenoid >> to work. Those solenoid door bells normally use up almost all of the >> power >> from those class 2 transformers. >> >> -----Original Message----- >> From: dmmoff...@gmail.com >> Sent: Tuesday, September 6, 2022 9:57 AM >> To: 'AnimalFarm Microwave Users Group' >> Subject: Re: [AFMUG] OT: Electronic question >> >> I'm thinking V=IR so if I add resistance to the newer bell would it draw >> more current and trigger the solenoid? Or would the resistor just be >> turning current into heat? >> >> >> -----Original Message----- >> From: AF <af-boun...@af.afmug.com> On Behalf Of Chris Fabien >> Sent: Tuesday, September 06, 2022 11:41 AM >> To: AnimalFarm Microwave Users Group <af@af.afmug.com> >> Subject: Re: [AFMUG] OT: Electronic question >> >> I think you are correct about the cause of the issue, probably the >> easiest >> solution is to leave the buzzer in the main circuit, and wire a 24vac >> relay >> in parallel with it, using the relay contacts to close and open the >> circuit >> to the ding-dong bell. >> >> On Tue, Sep 6, 2022 at 10:08 AM <dmmoff...@gmail.com> wrote: >> > >> > I know some of you are really good at this stuffā¦.. >> > >> > >> > >> > Iām in a 95 year old house. There are two doorbells. I just replaced >> the >> > front doorbell with a new cheapo from Lowes. Two chimes and two >> > solenoids. One solenoid fires when you press the button, and the other >> > fires when you release the button so you get the āding-dongā. >> > >> > >> > >> > Thereās an old doorbell in the back kitchen that sounds like an old >> school >> > bell. Two coils make the clacker move rapidly back and forth striking >> the >> > bell repeatedly. >> > >> > >> > >> > Well, when I hooked up both the old and new bell at the same time, the >> > school bell goes off when you press the button and the new one just >> goes >> > ādongā when you release the button. Either one works fine hooked up >> > separately. Iām guessing the first solenoid never fires on the new >> > doorbell because the school bell is a way heavier load and takes all >> the >> > current. I could just replace the school bell, but I kinda like the >> > nostalgic factor. And I suppose the other easy answer is put them on >> > separate transformers triggered by the same switch. >> > >> > >> > >> > Is there some simple nerd-gineer answer like ājust put a resistor hereā? >> > >> > >> > >> > >> > >> > -- >> > AF mailing list >> > AF@af.afmug.com >> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >
-- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
