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ESP32 sensor board

D76X·KiCad·Projects/KLP-5e-ESP32-sensor-board-01/KiCad project/ESP32 sensor board.kicad_pcb

ESP32 sensor board layout, top view — open source ESP32 board by D76X

About the ESP32 sensor board

ESP32 sensor board is an open source ESP32 PCB design by D76X, published on GitHub. It is a 4-layer board measuring 89.9 × 52.8 mm, with 85 components from 43 distinct parts.

Its main chip is the ESP32-C3-WROOM-02-H4, from the ESP32 family. Other key parts include the MCP73871-4CCI/ML, LM1117MPX-3.3/NOPB, CP2102N-A02-GQFN20, USBLC6-2SC6 and W25Q32JVSSIQ. By type, the board carries 33 resistors, 25 capacitors, 8 ICs, 6 diodes, 5 connectors and 3 transistors.

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

From the project

KiCad Projects

This project involves the design and development of a custom PCB for an IoT application powered by the ESP32-C3-02 SoC. The board includes integrated power management features using the TP4056 Li-ion battery charger IC, enabling efficient and safe charging of a single-cell Li-ion battery.

- Microcontroller: ESP32-C3-02 SoC for Wi-Fi and BLE connectivity. - Power Management: TP4056 IC for single-cell Li-ion battery charging with thermal regulation. - Battery Protection: Integrated under-voltage lockout and trickle charging. - Sensors and Modules: - BME280 for temperature, humidity, and…

Main components on the ESP32 sensor board

MCP73871-4CCI/MLLM1117MPX-3.3/NOPBESP32-C3-WROOM-02-H4CP2102N-A02-GQFN20USBLC6-2SC6W25Q32JVSSIQBME280MAX4466EXK+T

ESP32 sensor board bill of materials (BOM)

85 components, 43 distinct parts.

QtyPartRefs
1
MCP73871-4CCI/ML
MCP73871
U1
1
LM1117MPX-3.3/NOPB
LM1117MPX-3.3_NOPB
U2
1
ESP32-C3-WROOM-02-H4
U3
1
CP2102N-A02-GQFN20
U4
1
USBLC6-2SC6
U5
1
W25Q32JVSSIQ
U6
1
BME280
U7
1
MAX4466EXK+T
U8
1
TEMT6000X01
Q1
2
BC817
Q2, Q3
1
USB_C_Receptacle
J1
1
?
JST_2mm_LiPo
J2
1
GSD090012SEU
J3
1
B4B-XH-AM
J4
1
Conn_01x05
J6
1
0ZCH0110AF2E
F1
1
CMC-5042PF-AC
MK1
2
1101NE
SW1, SW2
3
LTST-C170KRKT
Red
D1, D4, D6
2
LTST-C170GKT
Green
D2, D5
Show 23 more
QtyPartRefs
1
LTST-C170TBKT
Blue
D3
1
FBMJ2125HM330-T
FB1
12
0.1u
C1, C2, C5, C8, C10, C13, C14, C15 +4
4
T491A106K010AT7280
10u
C3, C4, C7, C12
3
1u
C6, C11, C22
1
T491A106K010AT7280
4.7u
C9
3
10n
C17, C24, C25
1
10u
C19
1
100p
C20
7
10K
R1, R2, R19, R23, R32, R33, R34
2
5k1
R3, R4
3
2K
R5, R26, R28
1
20K
R6
3
470
R7, R8, R9
3
330
R10, R14, R18
2
1K
R11, R30
1
22K1
R12
1
47K5
R13
4
50
R15, R16, R20, R22
1
35WR100KLFTR
R17
2
4K7
R24, R25
2
1M
R27, R29
1
22K
R31

ESP32 sensor board design files

The KiCad project lives in the D76X/KiCad repository on GitHub; these links point at the commit this page was built from.

ESP32 sensor board: common questions

What microcontroller does the ESP32 sensor board use?

The ESP32 sensor board is built around the ESP32-C3-WROOM-02-H4, from the ESP32 family.

How big is the ESP32 sensor board?

The ESP32 sensor board measures 89.9 × 52.8 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ESP32 sensor board?

85 components, from 43 distinct parts. The full bill of materials is listed on this page.

Where can I download the ESP32 sensor board design files?

From the D76X/KiCad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ESP32 sensor board design in my own project?

The repository has no license, so all rights stay with D76X. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESP32 sensor board 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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