Kerry

No problem EDIT: Yes - agreeing with Kevin's comment below. They are really two stereo SE controls per board in that you can control each stereo pair independently.

If you're able to control the volume on the display, you'll be able to get the digital attenuator to work too:)

Here's the larger controller board up and running The motor works. I haven't tested the IR yet, but it's pretty straight forward. I've got a bunch of programming to do to get the IR/motor going.

One thing to note on my board is that I bypassed the 5V regulator for the out supply going to the digital attenuator. The attenuator board is pretty power hungry, and that could overwhelm the onboard regulator. Also, I added a 20K pull-up resistor on the pot's wiper for the larger board since the it's a 100K/3B taper. I've done some mapping work in code to give a smooth/consistent volume across the full dial (modeled after my encoder).

^ Agreed and Congrats! You'd need to program the ATtiny as well. For mine, I wanted to ability to control a display and leave the potential for additional integration open. It's based on the ATMega328P and is roughly equivalent to the Arduino Mini Pro.

Yes. It's a standard linear pot rather than an encoder, so the volume is set by it's position. I have an I2C header if you want a display, but it's not necessary.

Got the simple one built. I burned the boot loader, but was waiting on the FTDI stuff so I can easily program it.

I designed them at 6.80" and just measured the actual board at the same. Components should keep to the same dimensions. I just measured the pot face to the XLR input and it seems to be at 6.8" as well.

Here's the crystal part number: CSTCE16M0V53-R0

Really nice George! Congrats

I wouldn't do that

Happy Birthday Marc! Enjoy

Happy birthday

SS should be a bit more ridged but it's much more about the design of the mill than just the materials

That's a nice collection you have there. Nice job!

They were in case we wanted to shield things. They are not required.

Happy Birthday

^... Happy Birthday

Happy Birthday

Well done. Congrats and enjoy!

Nice!

Here's a mini version of the attenuator controller board without a motorized pot. The board is 1" x 1.65".

Very nice chassis work. I like the red anodized face. Welcome to the wonderful world is milling. It really is very rewarding

^ Me too

I was just looking to see if it supports SPI. Good and bad news... The chip supports it but there doesn't seem to be libraries written for this chip according to spark fun. There may be some user libraries out there.