HardLabs

Nyx

rh1tech·frank·hardware/nyx/nyx.kicad_pcb

Nyx PCB layout, top view — open source RP2040/RP2350 board by rh1tech

About the Nyx PCB

Nyx is an open source RP2040/RP2350 PCB design by rh1tech, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 51 × 21 mm, with 53 components from 27 distinct parts.

Its main chip is the RP2350B, from the RP2040/RP2350 family. Other key parts include the ESP-PSRAM64, W25Q128JVPIQ, USBLC6-2SC6 and ME6211C33M5. By type, the board carries 23 capacitors, 14 resistors, 5 ICs, 4 connectors, 2 switches and 2 LEDs.

It belongs with the retro computing designs in this gallery.

From the project

RP2350 Based Hardware Emulation Platform

FRANK is a hardware emulation platform built around the Raspberry Pi RP2350 (Pico 2 modules and RP2350A QFN). RP2040 / Pico still works in FRANK's socket, but in practice only a handful of firmware (mainly the older ZX Spectrum cores) still targets RP2040. Everything modern (IBM PC, NES, SNES, Genesis, the DOOM / id Tech 1 ports, FRANK OS, and so on) is RP2350-only.

Nyx, from the project README
From the project README

Main components on the Nyx

ESP-PSRAM64W25Q128JVPIQRP2350BUSBLC6-2SC6ME6211C33M5

Nyx bill of materials (BOM)

53 components, 27 distinct parts.

QtyPartRefs
1
ESP-PSRAM64
U1
1
W25Q128JVPIQ
U2
1
RP2350B
U3
1
USBLC6-2SC6
U4
1
ME6211C33M5
U5
1
ASE-12MHz
Y1
1
~
J1
1
~
J3
1
Debug
J4
1
USB4215-03-A
J5
1
KMR221G LFS
Boot
S1
1
KMR221G LFS
RP Reset
S2
1
Blue
LD1
1
Green
LD2
1
330R
FB1
1
3.3u
L1
17
100n
C1, C2, C3, C6, C9, C10, C11, C12 +9
4
4.7u
C4, C5, C7, C8
2
10u
C19, C23
2
10K
R1, R2
Show 7 more
QtyPartRefs
1
0R
R3
3
1K
R4, R6, R14
1
33R
R5
2
27R
R7, R8
2
5.1K
R9, R10
1
1M
R11
2
22R
R12, R13

Nyx design files

The KiCad project lives in the rh1tech/frank repository on GitHub; these links point at the commit this page was built from.

Nyx: common questions

What microcontroller does the Nyx use?

The Nyx is built around the RP2350B, from the RP2040/RP2350 family.

How big is the Nyx PCB?

The Nyx measures 51 × 21 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Nyx?

53 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Nyx design files?

From the rh1tech/frank repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Nyx design in my own project?

Yes, under the terms of its GPL-3.0 license, which rh1tech chose for the repository.

Can I test firmware for the Nyx without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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