#142

So excited about this. I’m in for a production pair for sure. Saving 8hp for it.

2 Likes
#143

Amazing!
sooo ready for these!
:slight_smile:

1 Like
#144

Great! I think this has made my decision of buying either a Teletype or Just Friends next that much harder.

These are kinds of problems a poor hack like myself likes to have!

I can’t wait!

#145

Give me a shout if you need any help. The refactored branch is getting close to another PR too.

#146

Incredibly excited about this !!

#147

Nice can’t wait to grab those ones but what about future teletype updates (thinking about official v2)? Will the expanders be integrated the official firmware ?

#148

yes

tehn is cool with this afaik

1 Like
#149

Yes. I recall tehn’s excitement and support for the project.

1 Like
#150

i will be making a generalized extension protocol for the i2c bus. stay tuned!

4 Likes
#151

Update Time!

First revision prototype boards were assembled and ran through their paces. Both modules (TEXEXo and TELEXi) are assembled and working.

Here is a shot of them sitting next to my dev Teletype behind temporary 3d printed panels.

FullSizeRender 7.jpg2734×2734 1.37 MB

Need a few small revisions to to correct a few small issues (package size for a few capacitors, PWM output routing for a few LEDs, a floating ground, and the dual i2c points that are too close together). But, all my important tests are passing.

  • TELEXi - 4 Independent Pots: Working
  • TELEXi - 4 CV Inputs (-10V to 10V): Working
  • TELEXo - 4 5V Trigger Outputs: Working
  • TELEXo - 4 CV Outputs (-10V to 10V): Working
  • TELEXo - 8 LED Indicators: Working

I also have some distance to go on the software now that they are assembled and on the bench. And - I’d like to target the new i2c spec that @tehn is working on when it is ready. That said, the end is in sight!

Here are a few more in-process shots using 3d printed panels. (Metal ones are designed and ready to produce, btw.)

11 Likes
#152

sweet jezus!
it is real!

#153

Can’t explain how excited I am to see this. Flan-tastic work!

#154

What ?! So soon ? That’s incredible ! You have no idea how grateful i am.

#155

Fantastic. So exciting. Cheers!

:beers:

#156

Very cool. This is going to be great. Is there software on the Telex end? Would this ever need to be updated?

#157

looking very nice.

question: how wobbly is that back panel? I tend to find 1x headers can lead to wobbly back panels, which leads to power-downs at inopportune moments… but it’s hard to tell from here. Very glad your routing worked out!

#158

Thanks to all for the supportive feedback! I’ve still a bit to do before I would consider them ready, but everyone’s support and encouragement has really helped me get this far!

@GoneCaving - firmware for the modules is updated through a USB connector on the Teensy processor; it is fast and easy (though the connector is on the back of the modules). Updates could take the form of improvements to each modules code and I imagine this will happen from time to time. Also, these are open source and will be free for anyone to hack as they wish.

@infovore - great question. The output expander is pretty solid as it has a lot of pins on each side and is slightly staggered. The input expander has shorter headers and can wobble. That is one of the things I’m looking to address with my next revision. I don’t want to re-route the board, but it certainly needs a bit more support. I’ll probably give some to both. :slight_smile:

2 Likes
#159

@bpcmusic Sorted so; I hadn’t spotted the USB port.

#160

Posted a short video sending the basic Teletype commands to the TELEXo with TRA and CV1 hooked up to the scope. Enjoy!!

b

7 Likes
#161

I’m weirdly too excited by that.

1 Like