HardLabs

TheTick

jkramarz·TheTick·hardware/Tick.kicad_pcb

TheTick PCB layout, top view — open source ESP32 board by jkramarz

About the TheTick PCB

TheTick is an open source ESP32 PCB design by jkramarz, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 33 × 22.5 mm, with 33 components from 19 distinct parts.

Its main chip is the ESP32-C3_SUPERMINI, from the ESP32 family. Other key parts include the TPS54202DDC and THVD1410D. By type, the board carries 13 resistors, 6 capacitors, 4 transistors, 3 ICs, 3 connectors and 2 diodes.

It belongs with the iot & wireless and power & battery designs in this gallery.

From the project

The Tick is the next evolution in covert access control system implants for simulating adversary-in-the-middle attacks.

The Tick is the next evolution in covert access control system implants. Designed for a seamless integration behind card readers, The Tick silently intercepts, logs, and replays access credentials with greater efficiency and stealth than ever before. Compatible with a wide range of RFID systems, provides invaluable (to red teamers) insights into facility (in)security, while enabling advanced credential injection. Whether for security auditing, red teaming, or mobile access control testing, The Tick delivers a compact, powerful, and flexible solution in an ever-connected world.

TheTick, from the project README
From the project README

Main components on the TheTick

TPS54202DDCTHVD1410DESP32-C3_SUPERMINI

TheTick bill of materials (BOM)

33 components, 19 distinct parts.

QtyPartRefs
1
TPS54202DDC
U1
1
THVD1410D
U2
1
ESP32-C3_SUPERMINI
U3
4
2N7002
Q1, Q2, Q3, Q4
1
Conn_01x03
J1
1
Conn_01x02
J2
1
Conn_01x03
J4
1
250mA 30V
F1
1
NUP2105L
D2
1
BAT54C
D5
1
10uH
L1
3
100n
C1, C2, C6
3
22u
C3, C4, C5
2
22k
R1, R8
2
120k
R2, R10
5
12k
R3, R4, R5, R6, R9
1
100k
R7
2
10
R11, R12
1
120
R13

TheTick design files

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

TheTick: common questions

What microcontroller does the TheTick use?

The TheTick is built around the ESP32-C3_SUPERMINI, from the ESP32 family.

How big is the TheTick PCB?

The TheTick measures 33 × 22.5 mm, has 2 copper layers and is 0.19 mm thick.

How many components are on the TheTick?

33 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the TheTick design files?

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

Can I use the TheTick design in my own project?

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

Can I test firmware for the TheTick without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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