HardLabs

AT-02-V2

ArsenShana·GPS-ES32·tracker-lab/v2/public/downloads/AT-02-V2.kicad_pcb

AT-02-V2 PCB layout, top view — open source STM32 board by ArsenShana

About the AT-02-V2 PCB

AT-02-V2 is an open source STM32 PCB design by ArsenShana, published on GitHub. It is a 4-layer board measuring 68 × 44 mm, with 59 components from 59 distinct parts.

Its main chip is the STM32L072CBT6, from the STM32 family. Other key parts include the u-blox MAX-M10S, EBYTE E32-433T20S, TI BQ24074, TI TPS63031 and ST LIS2DW12. By type, the board carries 21 capacitors, 21 resistors, 8 ICs, 4 connectors, 2 switches and 2 inductors.

It belongs with the rf & radio, power & battery and usb & debug tools designs in this gallery.

From the project

Arduino

Оба проекта — PlatformIO (VS Code → расширение PlatformIO IDE).

В tracker-lab/ добавлены локальный сайт с интерактивной 3D-моделью, симуляция радиообмена, программно разведённая плата-носитель KiCad и корпус STL/STEP. Запуск сайта: cd tracker-lab → npm ci → npm start, затем открыть http://localhost:4173. Инструкция по сборке и прошивке: tracker-lab/README.html.

Main components on the AT-02-V2

STM32L072CBT6u-blox MAX-M10SEBYTE E32-433T20STI BQ24074TI TPS63031ST LIS2DW12TI TPS22919USBLC6-2SC6 / ESD

AT-02-V2 bill of materials (BOM)

59 components, 59 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32L072CBT6
U1
1
u-blox MAX-M10S
U2
1
EBYTE E32-433T20S
U3
1
TI BQ24074
U4
1
TI TPS63031
U5
1
ST LIS2DW12
U6
1
TI TPS22919
U7
1
USBLC6-2SC6 / ESD
U8
1
USB-C / USB 2.0
J1
1
LiPo / NTC · 3 контакта
J2
1
GNSS RF / u.FL
J3
1
SWD / pogo
J4
1
BOOT / DFU
SW1
1
RESET
SW2
1
Green LED / status
D1
1
Ferrite / analog supply
FB1
1
Дроссель 2.2 µH
L1
1
100nF / VDD1
C1
1
100nF / VDD24
C2
1
100nF / VDD48
C3
Show 39 more
QtyPartRefs
1
100nF / USB VDD
C4
1
100nF / VDDA
C5
1
4.7uF / MCU
C6
1
100nF / reset
C7
1
100nF / ADC
C8
1
1uF / GNSS VIO
C9
1
10uF / GNSS VCC
C10
1
1uF / GNSS backup
C11
1
100nF / motion
C12
1
10uF / motion
C13
1
10uF / USB IN
C14
1
10uF / battery
C15
1
22uF / VSYS
C16
1
10uF / buck-boost IN
C17
1
22uF / buck-boost OUT
C18
1
22uF / buck-boost OUT
C19
1
100uF / radio buffer
C20
1
100nF / radio
C21
1
5.1k / CC1
R1
1
5.1k / CC2
R2
1
22R / USB D+
R3
1
22R / USB D-
R4
1
10k / BOOT0
R5
1
10k / NRST
R6
1
1M / battery divider
R7
1
330k / battery divider
R8
1
10k / I2C SCL
R9
1
10k / I2C SDA
R10
1
330R / LED
R11
1
100k / EN1 default
R12
1
2.94k / ISET 300mA target
R13
1
3.24k / ILIM
R14
1
46.4k / safety timer
R15
1
1k / ITERM
R16
1
10k / CHG pullup
R17
1
100R / GNSS QOD
R18
1
10k / radio reset pullup
R19
1
100k / M0 pulldown
R20
1
100k / M1 pulldown
R21

AT-02-V2 design files

The KiCad project lives in the ArsenShana/GPS-ES32 repository on GitHub; these links point at the commit this page was built from.

AT-02-V2: common questions

What microcontroller does the AT-02-V2 use?

The AT-02-V2 is built around the STM32L072CBT6, from the STM32 family.

How big is the AT-02-V2 PCB?

The AT-02-V2 measures 68 × 44 mm, has 4 copper layers and is 1.2 mm thick.

How many components are on the AT-02-V2?

59 components, from 59 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 AT-02-V2 design files?

From the ArsenShana/GPS-ES32 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 AT-02-V2 design in my own project?

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

Can I test firmware for the AT-02-V2 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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