eDP + touchscreen panel/monitor with the LattePanda Alpha

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Posts: 1
Joined: Mon Jan 14, 2019 3:17 pm

Mon Jan 14, 2019 3:29 pm

We are going to be running an alpha as an embedded solution in a full scale hovercraft as a way to control peripherals and touch screen. I have been going through documentation (what is available and not dead links) and am not able to find the specifications to assist with buying the correct screen.

I can see that the Alpha has a 30 pin eDP, but that is a very generic requirement, as that does not define the architectural standard for the monitor. If we have to run a touchscreen overlay, that would be fine as well, but how many pin is the touchscreen input on the Alpha? I have seen many overlays that are 4 pin, is that the same as the input on the alpha?

Any documentation, pictures of others alpha's, etc. is greatly appreciated.

I have spent the last 2 weeks looking through these forums, external forums, and general Google searching for the answer to this, but it seems to be very elusive.


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Posts: 5
Joined: Tue Jan 08, 2019 6:10 pm

Sat Jan 19, 2019 2:42 pm

According to the manual the touch panel input is 6-pin:
  • I2C_SCL
  • I2C_SDA
  • GND
  • INT
  • 3.3V
It also states that the operating voltage is 1.8v. I’m afraid I don’t know anything else about it, or whether there are even any compatible touch displays out there yet.

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Joined: Sun Jan 20, 2019 12:51 am
Location: Ukraine

Sun Jan 20, 2019 7:47 pm

The eDP connector for the LattePanda Alpha display is almost fully compliant with the VESA eDP v1.2 specification:
VESA eDP v1.2.jpg
VESA eDP v1.2.jpg (542.61 KiB) Viewed 2345 times
Almost all the displays complying with this specification will work with LattePanda Alpha - Signal Interface eDP (1 or 2 Lanes), 30 pins connector.

https://www.vesa.org/wp-content/uploads ... 010-v3.pdf

(Translated by Google translator from Russian.)

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Joined: Fri Feb 08, 2019 7:32 am

Fri Mar 22, 2019 7:00 am


Is there a list of compatible displays?

I'm wish to have a 10"-12" 1920x1200 or 2560x1600 display.

Best Regards
/ Rasmus

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