HardLabs

Chal base

DownUnderCTF·Challenges_2024_Public·hardware/the-door/src/chal-base.kicad_pcb

Chal base PCB layout, top view — open source RP2040/RP2350 board by DownUnderCTF

About the Chal base PCB

Chal base is an open source RP2040/RP2350 PCB design by DownUnderCTF, published on GitHub. It is a 2-layer board measuring 91.2 × 42.2 mm, with 46 components from 11 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W25Q16JVSS, 74HC595, 74HC688 and 74HC32. By type, the board carries 28 capacitors, 15 ICs, 1 crystal, 1 connector and 1 resistor.

From the project

Files + Solutions for DownUnderCTF 2024 Challenges

- Category: hardware - Difficulty: medium - Author: HexF - Tags:

I lost the remote to the plane hanger door. Help kiwi get back in the air!

NOTE: Your code has a 5 minute runtime limit

Main components on the Chal base

W25Q16JVSSRP204074HC59574HC68874HC32

Chal base bill of materials (BOM)

46 components, 11 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
W25Q16JVSS
U101
1
RP2040
U102
8
74HC595
U103, U104, U105, U106, U209, U210, U211, U212
4
74HC688
U213, U214, U215, U216
1
74HC32
U217
1
XC32M4-12.000-F18LJDT
Y101
1
CONN_01X03_PIN
Conn_01x03_Pin
J101
24
100NF
100nF
C101, C104, C105, C108, C109, C110, C111, C112 +16
2
27PF
27pF
C102, C103
2
1UF
1uF
C106, C107
1
1k
R103

Chal base design files

The KiCad project lives in the DownUnderCTF/Challenges_2024_Public repository on GitHub; these links point at the commit this page was built from.

Chal base: common questions

What microcontroller does the Chal base use?

The Chal base is built around the RP2040, from the RP2040/RP2350 family.

How big is the Chal base PCB?

The Chal base measures 91.2 × 42.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Chal base?

46 components, from 11 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 Chal base design files?

From the DownUnderCTF/Challenges_2024_Public 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 Chal base design in my own project?

The repository has no license, so all rights stay with DownUnderCTF. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Chal base 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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