HardLabs

ESPiezometer

adbj-hw·ESPiezometer·2_PCB_Gerber_Files/ESPiezometer.kicad_pcb

ESPiezometer PCB layout, top view — open source ESP32 board by adbj-hw

About the ESPiezometer PCB

ESPiezometer is an open source ESP32 PCB design by adbj-hw, published on GitHub under the CC-BY-4.0 license. It is a 2-layer board measuring 69.7 × 57.1 mm, with 11 components from 7 distinct parts.

Its main chip is the ESP32_C3_mni, from the ESP32 family. Other key parts include the RS485_TTL_slim, Mini560 and TP4056 battery charger. By type, the board carries 6 connectors, 4 ICs and 1 resistor.

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

From the project

Open hardware ESP32-C3 device for RS485 piezometric sensor installation and validation — includes PCB, firmware, app, STL enclosure, and field-ready documentation.

Version: 1.0 Author: Armando Blanco (2025) License: CERN Open Hardware License – Weakly Reciprocal Variant CERN-OHL-W v2

This directory contains the KiCad design source and Gerber fabrication outputs for the ESPiezometer PCB. These files allow users to manufacture, modify, or audit the PCB design, complying with open hardware documentation standards.

The Gerber files are formatted for compatibility with common PCB manufacturers such as JLCPCB, PCBWay, OSHPark, or similar fabrication services.

Main components on the ESPiezometer

ESP32_C3_mniRS485_TTL_slimMini560TP4056 battery charger

ESPiezometer bill of materials (BOM)

11 components, 7 distinct parts.

QtyPartRefs
1
ESP32_C3_mni
U1
1
RS485_TTL_slim
U2
1
Mini560
U3
1
TP4056 battery charger
U4
4
Screw_Terminal_01x02
J1, J2, J3, J6
2
Screw_Terminal_01x04
J4, J5
1
120Ω
R1

ESPiezometer design files

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

ESPiezometer: common questions

What microcontroller does the ESPiezometer use?

The ESPiezometer is built around the ESP32_C3_mni, from the ESP32 family.

How big is the ESPiezometer PCB?

The ESPiezometer measures 69.7 × 57.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESPiezometer?

11 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the ESPiezometer design files?

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

Can I use the ESPiezometer design in my own project?

Yes, under the terms of its CC-BY-4.0 license, which adbj-hw chose for the repository.

Can I test firmware for the ESPiezometer 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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