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9-axis-IMU-barometer-Data logger-

Dhruv2212-star·9-axis-IMU-barometer-Data-logger-·PCB/IMU+Barometer logger.kicad_pcb

9-axis-IMU-barometer-Data logger- PCB layout, top view — open source STM32 board by Dhruv2212-star

About the 9-axis-IMU-barometer-Data logger- PCB

9-axis-IMU-barometer-Data logger- is an open source STM32 PCB design by Dhruv2212-star, published on GitHub. It is a 2-layer board measuring 44 × 72 mm, with 59 components from 33 distinct parts.

Its main chip is the STM32L432KCUx, from the STM32 family. Other key parts include the TPD4EUSB30, Li-ion Charger, TPS63031DSK, ICM-20948 and TLV70018_SOT23-5. By type, the board carries 23 capacitors, 19 resistors, 9 ICs, 4 connectors, 2 switches and 1 battery holder.

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

From the project

Ai ussage- used to calculate the resistance in some resistor series ONLY***

Ai ussage- used to calculate the resistance in some resistor series ONLY***

This project is a compact, battery-powered data logger designed to record motion and environmental data in a single device. At its core is the STM32L432KC microcontroller, which collects data from the ICM-20948 9-axis IMU and BMP280 barometer. The IMU measures acceleration, rotation, and magnetic-field changes, while the barometer provides pressure and altitude information. A DS3231M real-time clock adds accurate timestamps to the recorded measurements. All the collected data is stored locally on a microSD card…

9-axis-IMU-barometer-Data logger-, from the project README
From the project README

Main components on the 9-axis-IMU-barometer-Data logger-

TPD4EUSB30Li-ion ChargerTPS63031DSKSTM32L432KCUxICM-20948TLV70018_SOT23-5TCA9517ADGKBMP280DS3231M

9-axis-IMU-barometer-Data logger- bill of materials (BOM)

59 components, 33 distinct parts.

QtyPartRefs
1
TPD4EUSB30
U1
1
Li-ion Charger
U2
1
TPS63031DSK
U3
1
STM32L432KCUx
U4
1
ICM-20948
U5
1
TLV70018_SOT23-5
U6
1
TCA9517ADGK
U7
1
BMP280
U8
1
DS3231M
U9
1
USB_C_Receptacle
J1
1
Conn_01x02
J2
1
Conn_01x05
J3
1
Micro_SD_Card
J4
1
Battery
BT2
1
SW_Push
SW1
1
SW_Push
SW2
1
2.2 µH
L1
3
10 µF
C1, C5, C22
1
100µF
C2
2
4.7 µF
C3, C4
Show 13 more
QtyPartRefs
1
22 µF
C6
6
100 nF
C7, C8, C9, C10, C21, C23
1
4.7 µF
C11
9
C
C12, C13, C14, C15, C16, C17, C18, C19 +1
2
5.1 kΩ
R1, R2
1
2 kΩ
R3
1
100 kΩ
R4
1
560 kΩ
R5
1
10 kΩ
R6
7
R
R7, R8, R9, R10, R11, R12, R13
2
10 kΩ
R14, R17
2
4.7 kΩ
R15, R16
2
22 Ω
R18, R19

9-axis-IMU-barometer-Data logger- design files

The KiCad project lives in the Dhruv2212-star/9-axis-IMU-barometer-Data-logger- repository on GitHub; these links point at the commit this page was built from.

9-axis-IMU-barometer-Data logger-: common questions

What microcontroller does the 9-axis-IMU-barometer-Data logger- use?

The 9-axis-IMU-barometer-Data logger- is built around the STM32L432KCUx, from the STM32 family.

How big is the 9-axis-IMU-barometer-Data logger- PCB?

The 9-axis-IMU-barometer-Data logger- measures 44 × 72 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 9-axis-IMU-barometer-Data logger-?

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

Where can I download the 9-axis-IMU-barometer-Data logger- design files?

From the Dhruv2212-star/9-axis-IMU-barometer-Data-logger- repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 9-axis-IMU-barometer-Data logger- design in my own project?

The repository has no license, so all rights stay with Dhruv2212-star. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 9-axis-IMU-barometer-Data logger- 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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