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Sci.Electronics.Basics -> 4-8ch relay board ?
There are 7 messages in this thread.
You are currently looking at messages 1 to 7.
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Author: Jan NielsenDate: 17:06 12-06-07
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Hi,
Anyone know of a good relay board, that can be interfaced from a mcu
using either 1digital output (20ma max, or if need be I can include the
transistor) per relay, or simple serial comm at low baud rate.
Should run and trigger at 5VDC.
Needs 4-8outputs each capable of 230Vac 5amp
Preferably with a case included.
The board should include rectifiers, transistors, and other components
to make it work from a 5VDC source with 20ma triggers, or a serial protocol.
I would prefer a EU store, but any ideas is welcome.
/Jan
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Author: petrus bitbyterDate: 17:35 12-06-07
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"Jan Nielsen" <nospam@mora.dk.byt.om.paa.mora.og.nospam> schreef in
bericht
news:466f0af2$0$52151$edfadb0f@dread11.news.tele.dk...
> Hi,
>
> Anyone know of a good relay board, that can be interfaced from a mcu using
> either 1digital output (20ma max, or if need be I can include the
> transistor) per relay, or simple serial comm at low baud rate.
>
> Should run and trigger at 5VDC.
> Needs 4-8outputs each capable of 230Vac 5amp
> Preferably with a case included.
>
> The board should include rectifiers, transistors, and other components to
> make it work from a 5VDC source with 20ma triggers, or a serial protocol.
>
> I would prefer a EU store, but any ideas is welcome.
>
>
> /Jan
Elektuur, mei 2003
petrus bitbyter
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Author: JamieDate: 19:38 12-06-07
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Jan Nielsen wrote:
> Hi,
>
> Anyone know of a good relay board, that can be interfaced from a mcu
> using either 1digital output (20ma max, or if need be I can include the
> transistor) per relay, or simple serial comm at low baud rate.
>
> Should run and trigger at 5VDC.
> Needs 4-8outputs each capable of 230Vac 5amp
> Preferably with a case included.
>
> The board should include rectifiers, transistors, and other components
> to make it work from a 5VDC source with 20ma triggers, or a serial
> protocol.
>
> I would prefer a EU store, but any ideas is welcome.
>
>
> /Jan
if you're going through all that bother, how about a PLC brick that has
all of that already ?
Maybe a PLC can't be used, who knows.
--
"I'm never wrong, once i thought i was, but was mistaken"
Real Programmers Do things like this.
http://webpages.charter.net/jamie_5
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Author: Jan NielsenDate: 22:23 12-06-07
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Jamie skrev:
> if you're going through all that bother, how about a PLC brick that has
> all of that already ?
> Maybe a PLC can't be used, who knows.
>
Maybe it can, I havent used PLC before.
I want to make a networked relay box, so I can start, stop, cycle the
relays remotely.
I know such products already exists, I just want to make one myself,
partly for the price, and partly to learn.
/Jan
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Author: Si BallengerDate: 23:42 12-06-07
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On Tue, 12 Jun 2007 23:06:58 +0200, Jan Nielsen
<nospam@mora.dk.byt.om.paa.mora.og.nospam> wrote:
>Hi,
>
>Anyone know of a good relay board, that can be interfaced from a mcu
>using either 1digital output (20ma max, or if need be I can include the
>transistor) per relay, or simple serial comm at low baud rate.
>
>Should run and trigger at 5VDC.
>Needs 4-8outputs each capable of 230Vac 5amp
>Preferably with a case included.
>
>The board should include rectifiers, transistors, and other components
>to make it work from a 5VDC source with 20ma triggers, or a serial protocol.
>
>I would prefer a EU store, but any ideas is welcome.
http://www.electronickits.com/kit/complete/elec/ck1601.htm
http://www.electronickits.com/kit/complete/elec/ck1610.htm
http://store.qkits.com/moreinfo.cfm/QK74A
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Author: Jan NielsenDate: 01:35 13-06-07
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Si Ballenger skrev:
> On Tue, 12 Jun 2007 23:06:58 +0200, Jan Nielsen
> <nospam@mora.dk.byt.om.paa.mora.og.nospam> wrote:
>
>> Hi,
>>
>> Anyone know of a good relay board, that can be interfaced from a mcu
>> using either 1digital output (20ma max, or if need be I can include the
>> transistor) per relay, or simple serial comm at low baud rate.
>>
>> Should run and trigger at 5VDC.
>> Needs 4-8outputs each capable of 230Vac 5amp
>> Preferably with a case included.
>>
>> The board should include rectifiers, transistors, and other components
>> to make it work from a 5VDC source with 20ma triggers, or a serial protocol.
>>
>> I would prefer a EU store, but any ideas is welcome.
>
> http://www.electronickits.com/kit/complete/elec/ck1601.htm
> http://www.electronickits.com/kit/complete/elec/ck1610.htm
> http://store.qkits.com/moreinfo.cfm/QK74A
>
That 1601 is pretty damm close, I only need to convert the 8inputs to a
parallel header, and find a box for it.
I will wait and see if theres other surgestions, otherwise it looks like
a winner :)
Thanks,
Jan
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Author: NeilDate: 15:24 13-06-07
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Jan Nielsen" <nospam@mora.dk.byt.om.paa.mora.og.nospam> wrote in message
news:466f5529$0$52150$edfadb0f@dread11.news.tele.dk...
> I know such products already exists, I just want to make one myself,
> partly for the price, and partly to learn.
> /Jan
If you want to climb up the learning curve, how about
- a PIC16F877 (partly because I've used one and managed to make it work so
it must be reasonably easy) to take in an RS232 signal (could email you
some code if need be)
- or an FTDI245 usb-to-fifo device,
-- driving into a buffer (74hct540, with leds see what's supposed to be
happening))
--- controlling some chunky power rated relays
All points monitorable, upgradeable, make the serial link as simple or
complex as you like ...
hth
Neil
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