HardLabs

NexaSeis

Domiko7·NexaSeis·seismometer/NX-LSM6DS3/pcb/NX-LSM6DS3/NX-LSM6DS3.kicad_pcb

NexaSeis PCB layout, top view — open source ESP32 board by Domiko7

About the NexaSeis PCB

NexaSeis is an open source ESP32 PCB design by Domiko7, published on GitHub under the AGPL-3.0 license. It is a 2-layer board measuring 56 × 56.5 mm, with 19 components from 15 distinct parts.

Its main chip is the ESP32-C3-WROOM-02, from the ESP32 family. Other key parts include the LSM6DS3 and AMS1117-3.3. By type, the board carries 7 resistors, 4 diodes, 3 ICs, 3 capacitors and 2 connectors.

It belongs with the science & space and iot & wireless designs in this gallery.

From the project

Acquisition and processing server for the NexaSeis collaborative seismic network

This directory contains the firmware and hardware work for the NexaSeis sensing devices.

See How to build a DIY seismometer for the accompanying hardware build guide.

NX-1D is a PlatformIO project targeting an ESP32 development board. Before building or uploading it, edit NX-1D/include/settings.h for your station and hardware.

- WIFISSID and WIFIPASSWORD — Wi-Fi credentials; - CODE, NETWORK, CHANNEL, and LOCATION — seismic channel identifiers, which must match the server configuration; - SERVERIP, SERVERPORT, and TRANSMISSIONPROTOCOL — NexaSeis server connection; - SAMPLERATE, ADC gain…

Main components on the NexaSeis

ESP32-C3-WROOM-02LSM6DS3AMS1117-3.3

NexaSeis bill of materials (BOM)

19 components, 15 distinct parts.

QtyPartRefs
1
ESP32-C3-WROOM-02
U1
1
LSM6DS3
U2
1
AMS1117-3.3
U3
1
USB_C_Receptacle_USB2.0_16P
J1
1
Screw_Terminal_01x02
J2
2
D_Schottky
D1, D2
1
RED
D3
1
BLUE
D4
1
1uF
C1
1
10uF
C2
1
22uF
C3
2
4.7k
R1, R2
1
10k
R3
2
5.1k
R4, R5
2
330
R6, R7

NexaSeis design files

The KiCad project lives in the Domiko7/NexaSeis repository on GitHub; these links point at the commit this page was built from.

NexaSeis: common questions

What microcontroller does the NexaSeis use?

The NexaSeis is built around the ESP32-C3-WROOM-02, from the ESP32 family.

How big is the NexaSeis PCB?

The NexaSeis measures 56 × 56.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the NexaSeis?

19 components, from 15 distinct parts. The full bill of materials is listed on this page.

Where can I download the NexaSeis design files?

From the Domiko7/NexaSeis repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the NexaSeis design in my own project?

Yes, under the terms of its AGPL-3.0 license, which Domiko7 chose for the repository.

Can I test firmware for the NexaSeis 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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