Arduino FIO (powerswitch) using a Relay+Reed Switch & magnet

Arduino FIO (powerswitch) using a Relay+Reed Switch & magnet#114873

By donzi - Sat Dec 04, 2010 9:48 pm

- Sat Dec 04, 2010 9:48 pm #114873

Hi All,
I would like to put a power switching system between an Arduino FIO and it's battery made up ofthe following:

-Arduino FIO
-Relay
-Reed Switch & Magnet

Would someone be able to recomend a relay that the coil of the relay could be driven with the Arduino FIO 3.3V analog/digital pins and handle the power comming from the battery?

I have attached a rough schematic.

https://picasaweb.google.com/lh/photo/7 ... directlink

Thanks for any help you can provide.
Don Anderson

Last edited by donzi on Sun Jan 15, 2012 6:32 pm, edited 2 times in total.

Re: Arduino FIO (powerswitch) using a Relay+Reed Switch & magnet#114943

By Thric - Sun Dec 05, 2010 9:04 pm

- Sun Dec 05, 2010 9:04 pm #114943

all you have to do is search a relay with a coli driven at 3.3v and 40ma. Try searching digi key or mouser

Re: Arduino FIO (powerswitch) using a Relay+Reed Switch & magnet#114998

By MEDERelectronic - Mon Dec 06, 2010 11:47 am

- Mon Dec 06, 2010 11:47 am #114998

According to my design engineer, all that is required is a 3V reed relay. Recommendation is a single-in line reed relay MEDER SIL03-1A72-71L. Datasheet for your reference http://meder.com/fileadmin/products/en_ ... 72071e.pdf Diode option is also available.

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