Power Module

I just got these new power modules, but I’m not sure how to use them. They have a lot of jumpers on them. I thought they supplied power to my breadboard by plugging them in. But I also see headers in the center for power. I don’t know what those do. I don’t know why there is a USB port.

Can someone tell me how to use these so I don’t damage something?

The pictures are attached.

Thanks.

Those look like these: http://hobbycomponents.com/index.php/breadboard-power-supply-module-3-3v-5v-for-mb102-solderless-breadboard.html

They are power supplies for a breadboard. The headers just let you take power off that way, A multimeter will demonstrate that for you. With both a barrel jack and a USB port the module can be powered either way.

Those aren't half bad. Nice and adjustable.

Thanks,

So I can use 5V or 3.3V on the rails based on that jumper setting. Then the middle headers will allow me to send either 5V or 3.3V to another breadboard or component?

I have some jumper wires that are Female/Male and they look like they would work for connecting those middle pins to another breadboard.

I think I like these because I don’t have to power motors or other things off of the Arduino’s power.

Also they have their own on/off switch so I don’t have to unplug the AC adapter all the time.

CSGuy:
Then the middle headers will allow me to send either 5V or 3.3V to another breadboard or component?

That’s what it looks like to me. Like I said, power it up and stick a multimeter on it.

It's good to know I can use a multimeter to answer these types of questions. I've never really used one before. I guess I learn little tricks every day. Then I won't need to ask that many questions.

Don't go sticking your...multimeter...into places you don't know about...like 120AC...until you're sure about what you are doing, but in this case 5v or 3.3v isn't going to be a problem.