This board can run retro computer machine emulator ZX128 by Phil SCULL with quick save and USB OTG for full keyboard and USB joystick/gamepad firmware version named with AUK you can download from DATASHEET on this page
NOTE! 9pin DSUB ATARI joystick connector
can make troubles if is cable to long, try shorten to etc 30cm
FEATURES:
- Dimensions 210mm x 130mm Motherboard with keyboard (black)
- Dimensions 210mm x 55mm Motherboard (red)
- Dimensions 210mm x 83mm Keyboard (white)
- Absolute minimum components = 7 resistors for VGA signal.
- QWERTY ZX keyboard with same matrix as original
- VGA output
- Speaker
- Reset button
- micro SD card
- 9pin DSUB ATARI joystick connector
Sale options:
- Bare main PCB board, no components, clean PCB, for self assembly, pictures in gallery are for inspiration
- Assembled ready for use without ZX Spectrum Case = PCB only
Required components
Component | Pcs | Description | Note |
---|---|---|---|
Raspberry PICO | 1 | main green board | - |
TACT-65K-F | 50 | tactile switch, 1N | Or another 1N force is very comfortable to press |
1K 0603/ 0805/ TH Ø1.8x3.2mm | 3 | Resistor | for VGA |
470R 0603/ 0805/ TH Ø1.8x3.2mm | 3 | Resistor | for VGA |
82R 0603/ 0805/ TH Ø1.8x3.2mm | 1 | Resistor | for VGA |
DSUB15 FEMALE | 1 | Connector Female | for VGA monitor |
DSUB9 MALE | 1 | Connector Male | for Joystick |
SD card SMD | 1 | micro SD car reader | |
LD-BZPN-3510 | 1 | Piezo Speaker | ... |
1503-20 | 1 | 3.5mm jack | Line Audio output |
82R 0603/ 0805/ TH Ø1.8x3.2mm | 1 | Resistor | Line Audio output |
4k7 0603/ 0805/ TH Ø1.8x3.2mm | 1 | Resistor | Line Audio output |
100n 0603/ 0805 | 1 | Capacitor | Line Audio output |
USB-A | 1 | Connector USB | USB - host |
USB-B | 1 | Connector USB | USB - Power only if you use USB - host |
USB-host
- you need connect external power to USB-B
- do not forget connect 2 small wires from test points to D+ D-
Computer systems supported:
- Zx spectrum 48k
- Zx spectrum 128k
Features:
- USB keyboard / joystick
- Keyboard matrix 8x5 keys
- USB joysticks
- VGA video (RGB222)
- PWM sound (1 pin) with AY-3-8912 emulation
- SPI SD card
- 12 quick save slots
- Load from .z80 snapshot files
- Read from .tap tape files, emulate loading sound and loading time
- On screen menu
- Kempston and Sinclair joystick emulation
Latest firmware For tis board is
You can check if firmware is active by
- Caps + Cursor = onboard LED is ON
- Caps + Kempston = onboard LED is OFF