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Topic: Connecting a relay? (Read 4804 times) previous topic - next topic

polishdude20


Pretty much a show stopper unless you can test with a 24vdc power source. If you do test at 24vdc be sure to remember to recalculate the LED's resistor size for the higher voltage.

Lefty






hmm well that's a bummer cause I don't have 24v to test with, oh well./

CrossRoads

Back home after long day of coaching fencing ...

Yep, 24V coil relay not going to turn on with 5V across it. Surprised it even clicks.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

polishdude20


Back home after long day of coaching fencing ...

Yep, 24V coil relay not going to turn on with 5V across it. Surprised it even clicks.


ok thx anyways

CrossRoads

Try a relay like this
http://www.dipmicro.com/store/842A-1C-S-5VDC
even get 10-20% discount on it if you can order now & be patient on delivery. (stock up a little - can get a ton of stuff for $20 with these guys).
inexpensive shipping too, like $2.50 in the US.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

retrolefty


Try a relay like this
http://www.dipmicro.com/store/842A-1C-S-5VDC
even get 10-20% discount on it if you can order now & be patient on delivery. (stock up a little - can get a ton of stuff for $20 with these guys).
inexpensive shipping too, like $2.50 in the US.


LOL, you might want to stay away from their 'bargain priced" 741 op-amp offering:

http://www.dipmicro.com/store/LM741CH

retrolefty

Well the National datasheet linked shows it's availblity in the round package, and the datasheet is dated 2000, so still in production 11 years ago?

http://cache.national.com/ds/LM/LM741.pdf


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