Monthly Archives: December 2016

Designing a Development Board

So I heard you were thinking about designing your own development board. That’s nice. But do you know how?

It’s one thing to go “I’d like to build my own development board”, but it’s quite a long step from there to “I have built my own development board and it works”.

There’s a number of steps you should go through before you even set pen to paper.

Why build another development board? Continue reading

The Importance of Sharing Grounds

A lot of the time on the Arduino forums we get questions regarding wiring things together. One common format is:

I want to connect my 12V powered LED strip to my Arduino but I can’t get it to communicate. I have checked all the connections and they seem fine. I have a 12V power supply for the LEDs and the Arduino is powered from the computer.

And 9 times out of 10 the first question we have to ask in return is:

Have you connected the grounds together?

And guess what the reply to that usually is? Yep:

No, do I need to? And isn’t that dangerous, connecting a 12V ground to the 5V Arduno ground?

Continue reading