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5V Relay Boards

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Here is an easy way to have the EZB control other electrical devices.

5v Relay Boards

These relay boards will connect to the EZB and using a digital control, you can have them switch other items (AC or DC up to 10amp) on or off.

I plan on using one to control an air solenoid valve for a pneumatic prop I'm building.

But I could seem them used to automate a household: lights, tv, coffee pot, etc. There are different sizes (number of relays) available for as cheap as $3 USD.

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#1  

does anyone have one of these relay boards?

I have one and can not get any more than the led's to work. The relay wont switch.... can you explain how it should be wired or connected to ezb.

#2  

Never mind..... I figured it out when i cut the relay box apart. Closed the contacts twords the magnet a bit and it started working fine. glued the box back together and it is still working...

so its all good again.

#3  

There is a jumper on the side that needs to be set unto allow the 5v to go to the relay. I have one and it works perfectly.

Great way to control other voltages with the EZB.

#4  

I realize now why the relay boards i bought did not work.....

I bought 5v relay boards from this guy link

Turns out the relay switch on them is 12v just like in the picture. I found the same switch in 5volt and replaced them and the boards work perfectly.

So in short.... the guy is selling the items labeled wrong and i was not smart enough to see it before i bought them.....

wonder if they will work on 12 volts or if another component will burn up instead?

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