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Xian
Newbie

Joined: 19/03/2025
Location: Germany
Posts: 30

Posted: 08:10pm 07 Jul 2026

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Hello All,

hast someone already tried to get PicoMite working on a "Pimoroni Pico VGA Demo Base" and a PiPico 2? How to achieve a working environment and which options must be used?
Any suggestions are higly welcome!

Thanks and Regards,

Xian

homa

Guru

Joined: 05/11/2021
Location: Germany
Posts: 641

Posted: 10:10pm 07 Jul 2026

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Hello Xian,

That won’t work straight out of the box. Take a look at the VGA control section in the manual – it’s different from your board.
One bold idea would be to use the standard MMBasic version for the Pico and handle the VGA part via the PIO. Peter posted an example of this at some point. I just can’t remember whether it was for HDMI or VGA?! You’d have to adapt it quite extensively, of course. You'd also need to consider the input method (PS/2 keyboard or everything via the terminal).
Overall, I don't think it's really feasible.

Matthias

phil99

Guru

Joined: 11/02/2018
Location: Australia
Posts: 3309

Posted: 10:24pm 07 Jul 2026

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Had a look at the diagram on the Pimoroni site and its VGA output uses a total of 17 pins, 5 for each primary colour plus 2 for sync.
PicoMite VGA uses 1 red, 2 green 1 blue and 2 sync pins so is not compatible.

Standard PicoMite firmware might work on it (no video output) but the 17 pins going to the VGA connector would be hard to access for other things.

I think they call it a Demo-Base as it would be difficult to run anything except their Demo firmware. The memory required to drive so many VGA pins would leave little room for anything else.

Edit.
Homa posted while I was writing. His pics show the problem.
Edited 2026-07-08 08:30 by phil99

al18
Senior Member

Joined: 06/07/2019
Location: United States
Posts: 245

Posted: 01:39am 08 Jul 2026

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The low cost board to use a Pico 1 or Pico 2 board is the Olimex RP-2040-PC - available for $12 EUR or $14.91 from Digikey in the U.S.

Note you need to install a jumper wire from GP26 to GP28 and configure it according to matherp’s comments from 22 May 2025 https://www.thebackshed.com/forum/ViewTopic.php?TID=17958&PID=239523#239523

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