PCB Only option is a PCB only, not a kit of parts. You supply the parts.

This is Version 2 of this card.

Version 1 of the card is here. It has 16-bits of I/O port expansion.

Version 3 of the card is here. It is designed to fit into a standard extruded aluminum enclosure.

What is it?

Adapter card for the Raspberry Pi Pico running MMBASIC with VGA, Sound, PS/2 Keyboard, SD card, and 32-bits of Digital I/O.

The "PCB Only" option is not a kit of parts. It is the PCB only.

Why did you make it?

It's really cool with a bit of retro and modern together in one design. And the Raspberry Pi Pico is inexpensive and widely available.

What makes it special?

Based on the PicoMiteVGA reference design but adds two 16-bit Digital I/O Expanders for 32-bits of Digital I/O. Note that the pinout used in the MMBASIC build is different than the reference design from the Pi Foundation.

Mostly Through-Hole parts

The card uses mostly through-hole parts with only 2 Surface Mount parts. The SD connector is easy to solder and the keyboard 5V to 3.3V level shifter is not difficult to solder (it's an SOIC-14). Picture shows 1/8W resistors but 1/4W resistors fit the footprint.

The Pico is not included. It is widely available (Digikey, Adafruit, others).

Features

• Raspberry Pi Pico (Not included)
• All 40 Pico pins are brought to two 20-pin headers
• Pin marking on rear
• VGA
  • 640x480 (Monochrome)
  • 320x240 (1:2:1 R:G:B - 16 colors)
• PS/2 Keyboard
• 5V to keyboard with voltage translator
• Does not require a keyboard that runs at 3.3V
• SD Card (Not included)
• Full size card
• Up to 32GB
• Stereo audio
• 3.5mm jack
• PWM output with analog RC filter
• Optional 32-bit GPIO
• (2) MCP23017 port expanders
• I2C1 on Pico (referred to as I2C2 in MMBASIC)
• DB-37 connector
• Example code
• Jumper selectable terminators
• I2C0 header, ideal for an external RTC
• Power options
• 5V power input
• USB Micro on Pico card
• USB B (power only)
• 0.1" pitch header
• 3.3V 2x8 output header for connecting external devices
• 95mmx95mm outline
• (4) 6-32 Mounting holes