HardLabs

Arctrack

leeeeeeeeeeeeee2·arctrack·hardware/kicad/arctrack.kicad_pcb

Arctrack PCB layout, top view — open source ESP32 board by leeeeeeeeeeeeee2

About the Arctrack PCB

Arctrack is an open source ESP32 PCB design by leeeeeeeeeeeeee2, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 40 × 60.5 mm, with 55 components from 35 distinct parts.

Its main chip is the ESP32-C3FH4, from the ESP32 family. Other key parts include the MPU-6050, BMP280, AMS REG, TP4056 and SERVO 5V BOOST. By type, the board carries 23 capacitors, 14 resistors, 6 ICs, 5 connectors, 2 inductors and 1 crystal.

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

From the project

a model rocket flight computer

ArcTrack is a compact flight computer for model rockets. It logs altitude and motion to a microSD card, reads GPS, and lets you live-track the rocket over WiFi from your phone. v1.3 adds a power LED, buzzer, and servo header for nose-cone parachute deploy at apogee.

Designed for a BT-70 body tube with a 3D-printed nose avionics bay.

Hardware: bare ESP32-C3FH4 (QFN-32, 4MB flash) + 2.4 GHz chip antenna, USB-C, LiPo charger, 3.3 V regulator, BMP280, MPU-6050, microSD, GPS header, servo + 5 V boost.

Main components on the Arctrack

MPU-6050BMP280AMS REGESP32-C3FH4TP4056SERVO 5V BOOST

Arctrack bill of materials (BOM)

55 components, 35 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MPU-6050
U1
1
BMP280
U2
1
AMS REG
U3
1
ESP32-C3FH4
U4
1
TP4056
TP4056-42-ESOP8
U5
1
SERVO 5V BOOST
U6
1
40MHZ
40MHz
Y1
1
USBC CHARGE PORT
J1
1
JST BATTERY CONNECTOR
J2
1
Micro_SD_Card
J3
1
GPS HEADERS
J4
1
SERVO
J5
1
Antenna
AE1
1
Buzzer
BZ1
1
POWER SWITCH
SW1
1
LED
D1
1
2.7NH
2.7nH
L1
1
2.2UH
2.2uH
L2
8
100N
100n
C1, C2, C4, C5, C7, C8, C9, C10
1
10N
10n
C3
Show 15 more
QtyPartRefs
1
2.2N
2.2n
C6
2
1u
C11, C12
2
10P
10p
C13, C14
1
22U
22u
C15
3
10U
10u
C16, C17, C18
2
1p
C19, C20
2
10UF
10uF
C21, C22
1
100UF
100uF
C23
6
10K
10k
R1, R2, R3, R4, R10, R11
2
5.1K
5.1k
R5, R6
1
12K
12k
R7
2
4.7K
4.7k
R8, R9
1
330
330Ω
R12
1
510K
510k
R13
1
100K
100k
R14

Arctrack design files

The KiCad project lives in the leeeeeeeeeeeeee2/arctrack repository on GitHub; these links point at the commit this page was built from.

Arctrack: common questions

What microcontroller does the Arctrack use?

The Arctrack is built around the ESP32-C3FH4, from the ESP32 family.

How big is the Arctrack PCB?

The Arctrack measures 40 × 60.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Arctrack?

55 components, from 35 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 Arctrack design files?

From the leeeeeeeeeeeeee2/arctrack 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 Arctrack design in my own project?

Yes, under the terms of its GPL-3.0 license, which leeeeeeeeeeeeee2 chose for the repository.

Can I test firmware for the Arctrack 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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