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Modulo DEC

maticas-tech-sas·maticas-data-logger·pcb/datalogger-esp32-dev-board/Modulo_DEC.kicad_pcb

Modulo DEC PCB layout, top view — open source ESP32 board by maticas-tech-sas
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About the Modulo DEC PCB

Modulo DEC is an open source ESP32 PCB design by maticas-tech-sas, published on GitHub. It is a 2-layer board measuring 85.4 × 78.9 mm, with 10 components from 8 distinct parts.

Its main chip is the RF_MODULE_ESP32-S3-MINI-1, from the ESP32 family. By type, the board carries 5 connectors, 2 resistors and 1 IC.

It belongs with the iot & wireless, sensors and test & measurement designs in this gallery.

From the project

Want to send measurements back to a server through HTTP or MQTT? This is about it along with the PCB design, 3D box and support for data storage with maticas API

This board was designed to be a development board for the ESP32 based datalogger project. It is a simple board with capacity for few sensors and a microSD card slot, along with an RTC. This board is not meant to be a final product, but a development board to help with the development of the datalogger project, does not have a battery management system.

1. Multiple I2C sensors. 2. 1x Analog sensor. 3. 2x Digital sensor (with pull-up resistor).

Modulo DEC, from the project README
From the project README

Main components on the Modulo DEC

RF_MODULE_ESP32-S3-MINI-1

Modulo DEC bill of materials (BOM)

10 components, 8 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RF_MODULE_ESP32-S3-MINI-1
ESP32-DEVKIT-V1
U1
1
DM3BT-DSF-PEJS
Screw_Terminal_01x04
J1
1
CONNECTOR_USB_C_RECEPTACLE_USB2.0_16P
Screw_Terminal_01x03
J2
2
CONNECTOR_CONN_01X10_SOCKET
Screw_Terminal_01x03
J3, J4
1
CONNECTOR_CONN_01X05_SOCKET
Screw_Terminal_01x02
J5
1
~
RTC1
1
R_Network_Dividers_x04_SIP
SDModule1
2
100K
R
R1, R2

Modulo DEC design files

The KiCad project lives in the maticas-tech-sas/maticas-data-logger repository on GitHub; these links point at the commit this page was built from.

Modulo DEC: common questions

What microcontroller does the Modulo DEC use?

The Modulo DEC is built around the RF_MODULE_ESP32-S3-MINI-1, from the ESP32 family.

How big is the Modulo DEC PCB?

The Modulo DEC measures 85.4 × 78.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Modulo DEC?

10 components, from 8 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 Modulo DEC design files?

From the maticas-tech-sas/maticas-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 Modulo DEC design in my own project?

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

Can I test firmware for the Modulo DEC 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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