deskthority

The entire row wasn't working so I knew it either had to be my soldering on the Arduino pin or the connected switch, or the software reading that pin, or the pin itself. So I tried resoldering that pin and all other connections and still same issue. So I moved to a different pin, updated software ...

I found the problem was a fritzing pin on my arduino, luckily had an extra pin I could use.

I am making good progress on my first keyboard build. But one, hopefully last :), issue has me at a stand still. I am unable to get any keypresses from my bottom row. I have a 5x14 layout, but I've only wired up and programed the right 7 columns (I'm building a split keyboard). I've put a multimeter ...

Really good news! I was zombie coding and there were spots that weren't bit shifting. For example I was doing this:

DDRF &= ~(1<<7 | 1<6 | 1<5);

You wouldn't have seen this issue because it was in code I hadn't pushed yet. Thanks again for your help and sorry I wasted your time!

Here is a photo of my board so far.

My weakest area in this project is electronics. And I think I'm overly confusing myself over how the pins are setup and the direction of current through the diodes. The rows are setup as output, and the columns are setup as input. But I have the diodes wired to flow from column to row. This did work ...

I have changed my program to only listen to the first row, and the first column. Keys that aren't even close to that are being triggered even though the software isn't watching them. Any ideas about that?

All diodes checked out. I'm swapping my usb cable tomorrow once I get one. I have noticed the power LED on the Arduino going on and off from time to time. Not sure this is the entire problem but I think there is a definite problem there.

If I hold the keyboard perfectly still then keypresses do stop. And if I apply pressure to the Arduino then I see keypresses, and it seems to depend which wires I push I get different keys pressed. That's another clue to me that it's the chip. A really weird thing is that I was using the 2 and 3 ...

I do mean de-soldering everything. I did use different switches, but did reuse the diodes. That is an interesting thought though. I'll swap out the diodes and see if that helps. I'm curious how this would make keypresses fire at random times though without the switch being pushed down though ...

I am building my first keyboard and have run into a snag. I am basing my firmware build off of the GH60 with some changes. It's actually going to be a split keyboard so I'm using an Arduino Pro Micro on the right hand keyboard and a pin extender on the left.

Anyways, I successfully got the ...