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ESP32-Sensor-Data-Logger

jminjares4·ESP32-Sensor-Data-Logger·hardware/Sensor Data Logger/Sensor Data Logger.kicad_pcb

ESP32-Sensor-Data-Logger PCB layout, top view — open source ESP32 board by jminjares4
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About the ESP32-Sensor-Data-Logger PCB

ESP32-Sensor-Data-Logger is an open source ESP32 PCB design by jminjares4, published on GitHub. It is a 2-layer board measuring 83.8 × 41.4 mm, with 67 components from 40 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the BQ25303JRTER, AMS1117-3.3 and DS3231M. By type, the board carries 23 resistors, 16 capacitors, 11 diodes, 4 ICs, 4 connectors and 4 switches.

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

From the project

Custom ESP32 sensor data logger

The hardware was developed through KiCad 6.0.

ESP32-Sensor-Data-Logger, from the project README
From the project README

Main components on the ESP32-Sensor-Data-Logger

BQ25303JRTERAMS1117-3.3ESP32-WROOM-32DS3231M

ESP32-Sensor-Data-Logger bill of materials (BOM)

67 components, 40 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
BQ25303JRTER
IC1
1
AMS1117-3.3
U1
1
ESP32-WROOM-32
U2
1
DS3231M
U3
1
Q_PMOS_DGS
Q1
1
NTJD1155LT2G
Q2
1
CONN_01X12_MALE
Conn_01x12_Male
J1
1
CONN_01X03_MALE
Conn_01x03_Male
J4
1
MEM2051-00-195-00-A
J5
1
USB4055-30-A
J6
1
Battery_Cell
BT1
1
Battery
BT2
3
SW_Push
SW1, SW2, SW3
1
SW_SPDT
SW4
6
LED
D1, D2, D7, D9, D10, D11
4
D_TVS
D3, D4, D5, D6
1
D_Schottky
D8
1
1u
L1
1
22U
22u
C1
2
22U
22u
C2, C4
Show 20 more
QtyPartRefs
3
0.1U
0.1u
C3, C5, C10
2
0.1U
0.1u
C6, C7
1
1u
C8
2
10U
10u
C9, C13
1
2.2U
2.2u
C11
1
2.2U
2.2u
C12
1
47N
47n
C14
1
10U
10u
C15
1
10U
10u
C16
5
330
R1, R3, R21, R22, R23
7
10K
10k
R2, R4, R5, R8, R10, R13, R14
3
10K
10k
R6, R7, R9
1
1k
R11
1
23.2K
23.2k
R12
1
51K
51k
R15
1
1k
R16
1
10K
10k
R17
1
100K
100k
R18
1
100K
100k
R19
1
10K
10k
R20

ESP32-Sensor-Data-Logger design files

The KiCad project lives in the jminjares4/ESP32-Sensor-Data-Logger repository on GitHub; these links point at the commit this page was built from.

ESP32-Sensor-Data-Logger: common questions

What microcontroller does the ESP32-Sensor-Data-Logger use?

The ESP32-Sensor-Data-Logger is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the ESP32-Sensor-Data-Logger PCB?

The ESP32-Sensor-Data-Logger measures 83.8 × 41.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32-Sensor-Data-Logger?

67 components, from 40 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 ESP32-Sensor-Data-Logger design files?

From the jminjares4/ESP32-Sensor-Data-Logger 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 ESP32-Sensor-Data-Logger design in my own project?

The repository has no license, so all rights stay with jminjares4. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESP32-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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