Wuard core v1

wuard·Wuard-core-v1-pcb

About the Wuard core v1 PCB

Wuard core v1 is an open source RP2040/RP2350 PCB design by wuard, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 17.8 × 19.9 mm, with 28 components from 15 distinct parts.

Its main chip is the RP2350A-QFN60, from the RP2040/RP2350 family. Other key parts include the TROPIC01_CHIP and SSP7615-33DFR. By type, the board carries 12 resistors, 7 capacitors, 3 ICs, 2 connectors, 2 diodes and 1 crystal.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Wuard Core v1 pcb project

The Wuard Core v1 is a compact HSM development board designed to empower makers, researchers, and developers working on security and cryptography based projects. It is one of the first open-source cryptographic coprocessor development boards built around the Tropic01 by TropicSquare.

- Dimensions: 19.85 mm × 17.78 mm (0.78 in × 0.7 in) - Form factor: Breadboard-friendly (pitch: 2.54 mm standard for prototyping) - Variants: Available with through-hole pads or pin headers

Wuard core v1, from the project README — From the project README

Main components on the Wuard core v1

RP2350A-QFN60 TROPIC01_CHIP SSP7615-33DFR

Wuard core v1 bill of materials (BOM)

28 components, 15 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	RP2350A-QFN60	RP2350A_QFN-60_EP_7.75x7.75_Pitch0.4mm	U1
1	TROPIC01_CHIP TROPIC01_chip	TROPIC01-QFN-32-1EP_4x4mm_P0.4mm_EP2.65x2.65mm	U2
1	SSP7615-33DFR	UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm	U3
1	12MHZ 12MHz	Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
2	CONN_01X06 Conn_01x06	PinSocket_1x06_P2.54mm_Vertical_castellated	J1, J2
2	LED	LED_0402_1005Metric	D1, D2
1	3.3UH 3.3uH	L_AOTA-B201610S3R3-101-T	L1
3	4.7UF 4.7uF	C_0201_0603Metric	C17, C18, C19
2	15PF 15pF	C_0201_0603Metric	C20, C21
2	1UF 10uF	C_0201_0603Metric	C22, C23
7	1k	R_0201_0603Metric	R1, R2, R3, R4, R5, R6, R11
1	10K 10k	R_0201_0603Metric	R7
2	27	R_0201_0603Metric	R8, R9
1	33	R_0201_0603Metric	R10
1	100K 100k	R_0201_0603Metric	R12

Wuard core v1 design files

The KiCad project lives in the wuard/Wuard-core-v1-pcb repository on GitHub; these links point at the commit this page was built from.

Wuard core v1: common questions

What microcontroller does the Wuard core v1 use?

The Wuard core v1 is built around the RP2350A-QFN60, from the RP2040/RP2350 family.

How big is the Wuard core v1 PCB?

The Wuard core v1 measures 17.8 × 19.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Wuard core v1?

28 components, from 15 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Wuard core v1 design files?

From the wuard/Wuard-core-v1-pcb repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Wuard core v1 design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which wuard chose for the repository.

Can I test firmware for the Wuard core v1 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.