Midifidler's Pro-Control Development Thread

[midifidler]

Just the sends and kill buttons will have dimming control, but this would be possible. I was planning on making the knob back lights switchable too so it would not be to hard to PWM them to modulate the brightness.

[Fatlimey]

Just the sends and kill buttons will have dimming control, but this would be possible. I was planning on making the knob back lights switchable too so it would not be to hard to PWM them to modulate the brightness.

If you go I2C, there's plenty of choice.

http://www.nxp.com/#/homepage/cb=[t=...t=pfp,i=48878]

[Anthony More]

Wow Midifidler!
Looks Impressive.
Be patient on the job

[midifidler]

Thanks for the link Robin,

Im using texas instrument 16 LED controllers, the TLC5924 & TLC5928. The 24 can drive up to 80 mA per channel and allows 127 step individual dimming of each LED, the 28 only does 25 mA (From memory) and does not allow dimming, but costs a few dollars less.

I had not initially planned on making the pot back lights controlled but I may as well for only $3.5 more cost.

I think Stanton or someone has a patent on using pot back lights to indicate the value or other information, man patent law is retarded......

[midifidler]

@Anthony More

Cheers! - Im looking forwards to seeing your VCI finished.

[BentoSan]

man patent law is retarded......

Amen - so much for helping to "inspire" creativity.

[Fatlimey]

Im using texas instrument 16 LED controllers, the TLC5924 & TLC5928.

They're all QFN or TSSOP packages. How am I supposed to deal with that!? Give me DIP or give me Death!

[midifidler]

Heh, TSSOP is easy to solder you just need to use a little wick after to remove any shorts, the usb controller I am using is QFN - that is going to be the tricky part!

[midifidler]

I thought I'd do a quick update on progress over the last few weeks.

The schematics are complete save for the main power supply & hub

I have nearly finished the main pcb, just a couple hundred tracks to go....

I finally got solid works again so I have started modeling the components and started on the mechanical design/model.

I have also brought samples of the components I intend to use, the rotaries feel great, by far the best Ive felt on any controller.

However the back lit pots are pretty litz, I brought the smallest size and they feel really crappy, however they do a larger version with a longer threaded neck which should improve the wobble so I will buy one of those and see how it is.

Also the back lit pots dont have detents, Im not really sure how much I care about this, will have to get this decided upon before I order the PCBs.

I have attached some renders of the main PCB as it stands now, you can see the light pipe assembly I designed placed around the rotaries encoders, this pipes the light from the tiny bi-color leds placed on the PCB up to just below the label, preventing bleeding from other leds near by, and maintaining good brightness levels.

[JesC]

the project is starting to look sweet.