Hardware

related repository: Hardware

Hint: there is a lot of useful information on the silkscreen on the reverse of the board!

Consider this incomplete!

Audio

• speaker / buzzer
  • 2W 8Ω speaker
  • volume control via boot button UI, saved to settings.json in flash
• audio out jack (headphone)
• (in principle the hardware supports I2S)

Battery

• tbd (something about connector size, polarity)

Bluetooth

• available in hardware (ESP32 S3), not implemented

Case

• tbd (something something link to some 3D models)

Display

• onboard TFT display 320x240 pixels, 16 bits per pixel, via ST7789 driver
• HDMI out (future, via RP2350 adapter)
  • ideally someone will add a pinout / page here showing how to wire this up via a Pico 2 and DVI board 🙂

Expansion port

• tbd (something something pins/layout/pitch/connector)
• pinout printed on reverse of board

I2C

• Qwiic 1 - GPIO 5 SDA/6 SCL - not implemented in current firmware 0.0.9
• Qwiic 2 - GPIO 43 SCL/44 SDA - will accept Wii Nunchuk as Kempston Joystick input

Joystick

• firmware has support for a Wii Nunchuk as Kempston Joystick over Qwiic2 only

Keyboard

• standard ZX Spectrum layout including shifted modifiers
• useful keycode reference here

LED

• D1 -> accessible via GPIO 1
• D2 lit -> 3V3 power supply is active
• D3 lit -> 5V power is available from the USB-C port

Microprocessor

• ESP32 S3 WROOM datasheet

QWIIC

• see I2C above

SD card

• (add something about formats, files, access)

Wifi

• available in hardware (ESP32 S3), not implemented
  • could be used in future for wireless access to SD card, keyboard input, etc?