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Teenix multi calc plus
04-02-2022, 08:23 AM (This post was last modified: 06-04-2022 08:01 AM by tangdfx.)
Post: #1
Teenix multi calc plus
Hello, everyone

Today I introduce the project Teenix multi clac plus. Which is under development yet.

You can have a look at below picture.

[attachment=10492]

The variant hardware:

1 Fluorescent tube display 13 digits ( while the original multi calc use 15 digits LED)
2 The keyboard use cherry mx mechanical shaft

The display effect demonstration:

[attachment=10493]

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06-04-2022, 06:49 AM
Post: #2
RE: Teenix multi calc plus
Hi, All

I updated the progress of this project.

Now we can see the running status of this calculator.

Although there is a lot work to be done to improve.

[attachment=10759]

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06-04-2022, 11:41 AM
Post: #3
RE: Teenix multi calc plus
Can it run Free42? Wink

First!

Remember kids, "In a democracy, you get the government you deserve."
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06-05-2022, 09:46 PM
Post: #4
RE: Teenix multi calc plus
Very nice project! Very similar to my version, the prototype is still working, but I never managed to get it reliable, the ftdi chip kept dieing, I think it is the supply for the tubes that causes this, but I never got quite to the bottom of the problem. There is too much other stuff going on in my life so I kind of dropped the project.
Hope you have better luck with it! Looks very good so far!

   
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06-06-2022, 07:05 AM
Post: #5
RE: Teenix multi calc plus
(06-04-2022 06:49 AM)tangdfx Wrote:  Now we can see the running status of this calculator.

Very nice! Is this 13 digit display easy to get? What voltages does it need?
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06-06-2022, 11:12 AM
Post: #6
RE: Teenix multi calc plus
Hi

The VFD is iv27 from soviet union.

The drive voltage is 28V.

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06-07-2022, 07:03 AM
Post: #7
RE: Teenix multi calc plus
Thanks!
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06-07-2022, 12:15 PM
Post: #8
RE: Teenix multi calc plus
Hiļ¼Œall

The keyboard updated.

First version with handwritten.

Next version will be printed.

[attachment=10766]

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