PC3-piconesPlus_046.zip

Hello everyone,
I've adapted the pico-infonesPlus retro gaming console emulator project for the PICO COMPUTER 3 hardware.
pico-infonesPlus
Video output: DVI or HDMI
Sound output: I2S or HDMI
Controls: two NES/SNES controllers, Wii controller, USB keyboard or gamepads.
I've currently assigned the HEC controller connections to ports GP0...GP5

I would like to somehow decide on a standard connection for these game controllers to PC3

In general, I would like to know about your interest in porting this emulator?
I am sure the author of the project will not refuse to make a ready-made configuration for PC3 hardware.

Excellent

There may in the future be a series of articles on the pc3 and the various codebases available for it in Silicon Chip Magazine (and eventually Practical Electronics) so it would be great to add this as another firmware. Personally I would prefer you used GP34-GP39 for the HEC controller but this isn't a big deal
Edited 2026-08-21 01:08 by matherp

Although you don't need to in this case, it's quite possible to share the clock and latch lines for NES/SNES controllers. Each controller needs its own data pin. The number of controllers is limited by how many data channels you read. :)

The NES emulator is very cute

There was already a 128/200k Mac emulator on the RP2040.
For purely personal reasons, an Atari ST emulator for PC3 hardware would be very interesting

I thought my Atari STFM was the bee's knees at the time. However, much more recently I tried an emulator and TBH I'm glad we've moved on from GEM. :) Having large amounts of RAM has made a huge difference - even if "large" is defined as 1GB.

  Martin H. said  

For purely personal reasons, an Atari ST emulator for PC3 hardware would be very interesting

Atari ST is quite complicated, but Atari 400/800/XL/XE/GSXE/5200/2600 is easy  

Emulators can also be easily ported:
Apple IIe
Apple Mac 128k
Amstrad CPC
Commodore 64
BBC Micro
MCX
ZX Spectrum
...

  Mixtel90 said  

Although you don't need to in this case, it's quite possible to share the clock and latch lines for NES/SNES controllers. Each controller needs its own data pin.

Will connecting two NES controllers like this satisfy everyone?

Although in most cases, only one NES controller can be connected for single-player play.

Interesting project.

The 2350 version can be equipped with a bootloader. For the PiComputer3 it would be very nice when MMBasic can be selected, -or- NES emulation.
This may require a change in MMBasic, so it could run from a bootloader.

I am thinking about building a 2040 based NES system, just for fun. They have a PCB that supports a DVI breakout board (the one that Mick also uses), and an SD card breakout board and has connectors for 2 SNES controllers. Simple assembly.

Volhout

  Quote  

This may require a change in MMBasic,

No chance. It is so easy to flash a uf2 why destabilise everything?

  Volhout said  

The 2350 version can be equipped with a bootloader. For the PiComputer3 it would be very nice when MMBasic can be selected, -or- NES emulation.

On the PICO COMPUTER 3 board, you can solder another identical chip onto the flash memory chip and install a chip selection switch. This allows for quick and easy firmware switching.

The Pico is a *dedicated* controller costing peanuts. Why fart about with bootloaders, soldering extra chips etc? Just build a dedicated board. A lot less work. :)  The YD-RP2040 is currently £2.26 on AE Choice. WeAct do a similar board with a RP2350 for £3.04.

New test version 0.47 of the NES emulator for Pico Computer 3
PC3-piconesPlus_047.zip
Information about the project on GitHub
fhoedemakers/pico-infonesPlus
Debug information is on the UART console
Wii classic controller on SYSTEM I2C bus
USB keyboard & USB gamepads
Connecting NES controllers according to the diagram:

Edited 2026-08-23 16:55 by javavi