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Sensor data logger

mrcha033·hw-codesign·projects/sensor_data_logger/electronics/generated/kicad/sensor_data_logger.kicad_pcb

Sensor data logger PCB layout, top view — open source ESP32 board by mrcha033
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About the Sensor data logger PCB

Sensor data logger is an open source ESP32 PCB design by mrcha033, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 70 × 50 mm, with 16 components from 12 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N8, from the ESP32 family. Other key parts include the ICM-42688-P and TPS62133RGTR. By type, the board carries 5 resistors, 3 ICs, 3 capacitors, 2 connectors, 1 transistor and 1 fuse.

It belongs with the wearables and sensors designs in this gallery.

From the project

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Sensor data logger, from the project README
From the project README

Main components on the Sensor data logger

ESP32-S3-WROOM-1-N8ICM-42688-PTPS62133RGTR

Sensor data logger bill of materials (BOM)

16 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1-N8
ESP32-S3-WROOM-1
U1
1
ICM-42688-P
U2
1
TPS62133RGTR
3V3 Buck
U3
1
LM74700QDBVRQ1
Ideal Diode
Q1
1
USB4105-GF-A
USB-C POWER
J1
1
Samtec-FTSH-105-01-L-DV-K
UART DEBUG
J2
1
Littelfuse-0498080.M
500mA Fuse
F1
1
USBLC6-2SC6
USB ESD
D1
2
GRM188R71C104KA01D
100nF
C1, C2
1
GRM31CR61E226ME15L
22uF
C9
3
RC0603FR-074K7L
4K7
R1, R2, R3
2
RC0603FR-075K1L
5K1 USB-C Rd
R5, R6

Sensor data logger design files

The KiCad project lives in the mrcha033/hw-codesign repository on GitHub; these links point at the commit this page was built from.

Sensor data logger: common questions

What microcontroller does the Sensor data logger use?

The Sensor data logger is built around the ESP32-S3-WROOM-1-N8, from the ESP32 family.

How big is the Sensor data logger PCB?

The Sensor data logger measures 70 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Sensor data logger?

16 components, from 12 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 Sensor data logger design files?

From the mrcha033/hw-codesign 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 Sensor data logger design in my own project?

Yes, under the terms of its Apache-2.0 license, which mrcha033 chose for the repository.

Can I test firmware for the Sensor data logger 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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