Connecting 6VDC relay with Arduino?

[NishantSood]

I bought a bunch of Relays that i want to connect with Arduino UNO they have an Operating value of 6VDC and switching capability of 240 VAC and having 5 connector's as in the
Picture:
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I wanted to know how can i connect it to arduino and as its 6VDC will it be able to work with arduino's 5 VDC or not or i have to provide external power source?

 

[bbgil]

normally u can used a pull up circuit. U can use a transistor acting as a switch to be trigger once the output of the arduino goes high. Some uses tri-state buffer or schmitt trigger but must make sure it can pull up the voltage up to 6 volts otherwise it will not be able to trigger the rel.ay

 

[pk_volt]

Hi there, I am currently doing the exact same thing as what you are doing, except my relays are 12 volts.

You can use the uln2003 interfaced to your arduino like this: http://www.digital-diy.com/digital-diy.net/Handy Tips/Resources/ULN2003.gif

I even stacked two chips on top of each other to double the current output of each driver

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