I'm just looking for some clarification on my power supply.
I'm going to be replicating the following project on a breadboard...
I purchased these Arduino Pro Mini's last night...
Now I'm trying to figure out how to power the Arduino on the breadboard. I rummaged through my spare parts bin and came across this interesting board that I think will do the trick.
It looks like it plugs right onto the top of the breadboard and provide either 5V or 3.3V power depending on jumper position. That part makes sense; however, looking at the top of the board the bottom pins are labelled "+" and "-" and then just above these pins is a second set labelled "VCC" and "GND". I trust these are the same and all (4) sets of pins can be installed on the breadboard at the same time?
I have an identical looking board from another manufacturer and those pins are unlabeled. Both sets on mine provide the selected voltage to the breadboard. I have fried projects with poorly labeled power supplies though, so if you have a multimeter, I'd check it.
Are we are talking about a solder-less breadboard ?
When using that power board with any more the 7 or 9V in the power jack, the 5v regulator might get very hot (if you take more current than just the pro mini).
With a voltmeter, confirm which pins are supplying 5v.
