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ESP32-C3-Low-Power-IoT-Plant-Node

mohamed-sebbar·ESP32-C3-Low-Power-IoT-Plant-Node·Hardware/Kicad project/ESP32-C3-Low-Power-IoT-Plant-Node.kicad_pcb

ESP32-C3-Low-Power-IoT-Plant-Node PCB layout, top view — open source ESP32 board by mohamed-sebbar

About the ESP32-C3-Low-Power-IoT-Plant-Node PCB

ESP32-C3-Low-Power-IoT-Plant-Node is an open source ESP32 PCB design by mohamed-sebbar, published on GitHub under the CERN-OHL-W-2.0 license. It is a 4-layer board measuring 59.5 × 29.9 mm, with 65 components from 34 distinct parts.

Its main chip is the ESP32-C3, from the ESP32 family. Other key parts include the USBLC6-2P6, SHT4X, W25Q16JVSS, TPS61200DRC and MCP73831-2-MC. By type, the board carries 25 capacitors, 17 resistors, 7 ICs, 3 connectors, 3 inductors and 2 transistors.

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

From the project

Hardware redesign of a smart irrigation system featuring a custom 4-layer ESP32-C3 PCB with RF-aware layout, battery management, environmental sensing, and automated irrigation control.

This repository presents the complete hardware design of a compact ESP32-C3 based IoT plant monitoring node developed as an engineering-focused redesign of a previously demonstrated smart irrigation concept.

Where the original project validated the overall application concept, this work focuses on the complete hardware architecture, RF-aware PCB layout, mixed-signal design, manufacturability, power integrity, and long-term maintainability of a production-oriented embedded platform.

ESP32-C3-Low-Power-IoT-Plant-Node, from the project README
From the project README

Main components on the ESP32-C3-Low-Power-IoT-Plant-Node

ESP32-C3USBLC6-2P6SHT4XW25Q16JVSSTPS61200DRCMCP73831-2-MCTLV75733PDBV

ESP32-C3-Low-Power-IoT-Plant-Node bill of materials (BOM)

65 components, 34 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3
U1
1
USBLC6-2P6
U2
1
SHT4X
SHT4x
U3
1
W25Q16JVSS
U4
1
TPS61200DRC
U5
1
MCP73831-2-MC
U6
1
TLV75733PDBV
U8
1
Q_PMOS_GSD
Q1
1
Q_NMOS_GSD
Q2
1
40MHZ
40MHz
Y1
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J1
1
Pump
J2
1
Soil Sensor
J3
1
~
ANT1
1
Battery_Cell
BT1
1
LDR07
LDR1
2
SW_Push
SW1, SW2
2
SS14
D1, D3
1
600R
FB1
1
2.2UH
2.2uH
L1
Show 14 more
QtyPartRefs
1
2.2NH
2.2nH
L2
2
10UF
10uF
C1, C14
10
100NF
100nF
C2, C3, C4, C5, C6, C7, C10, C13 +2
6
1UF
1uF
C8, C9, C18, C23, C24, C25
2
10PF
10pF
C11, C12
3
4.7UF
4.7uF
C15, C16, C17
2
3.3PF
3.3pF
C21, C22
2
5.1K
R1, R2
7
10K
R3, R4, R5, R6, R7, R14, R17
2
910K
R8, R10
2
180K
R9, R13
1
100K
R11
1
562K
R12
2
4.7K
R15, R16

ESP32-C3-Low-Power-IoT-Plant-Node design files

The KiCad project lives in the mohamed-sebbar/ESP32-C3-Low-Power-IoT-Plant-Node repository on GitHub; these links point at the commit this page was built from.

ESP32-C3-Low-Power-IoT-Plant-Node: common questions

What microcontroller does the ESP32-C3-Low-Power-IoT-Plant-Node use?

The ESP32-C3-Low-Power-IoT-Plant-Node is built around the ESP32-C3, from the ESP32 family.

How big is the ESP32-C3-Low-Power-IoT-Plant-Node PCB?

The ESP32-C3-Low-Power-IoT-Plant-Node measures 59.5 × 29.9 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ESP32-C3-Low-Power-IoT-Plant-Node?

65 components, from 34 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-C3-Low-Power-IoT-Plant-Node design files?

From the mohamed-sebbar/ESP32-C3-Low-Power-IoT-Plant-Node 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-C3-Low-Power-IoT-Plant-Node design in my own project?

Yes, under the terms of its CERN-OHL-W-2.0 license, which mohamed-sebbar chose for the repository.

Can I test firmware for the ESP32-C3-Low-Power-IoT-Plant-Node 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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