HardLabs

GSR sensor

fg-edu-tep·MENTORU·GSR sensor/GSR sensor.kicad_pcb

GSR sensor PCB layout, top view — open source ESP32 board by fg-edu-tep

About the GSR sensor PCB

GSR sensor is an open source ESP32 PCB design by fg-edu-tep, published on GitHub. It is a 2-layer board measuring 95.5 × 31 mm, with 23 components from 9 distinct parts.

Its main chip is the ESP32-S3-XIAO, from the ESP32 family. By type, the board carries 8 resistors, 5 capacitors, 4 diodes, 3 connectors, 2 transistors and 1 IC.

It belongs with the sensors designs in this gallery.

From the project

Sistema de monitoreo biométrico distribuido basado en ESP32. Varios dispositivos vestibles (reloj, gafas, pecho, sensor GSR) miden señales fisiológicas y de movimiento, y las transmiten de forma inalámbrica por ESP-NOW a un receptor central que las expone como JSON vía HTTP.

Sistema de monitoreo biométrico distribuido basado en ESP32. Varios dispositivos vestibles (reloj, gafas, pecho, sensor GSR) miden señales fisiológicas y de movimiento, y las transmiten de forma inalámbrica por ESP-NOW a un receptor central que las expone como JSON vía HTTP.

Proyecto de la asignatura Fundamentos de Electrónica (Universidad de los Andes).

Cada dispositivo sensor transmite tramas de tamaño fijo (88 bytes) usando el protocolo propio ESB-P (ESP-NOW Sensor Broadcast Protocol, ver ESB-PESP-NOW SENSOR BROADCAST PROTOCOL DRAFT 1.pdf`). Cada trama tiene:

GSR sensor bill of materials (BOM)

23 components, 9 distinct parts.

QtyPartRefs
1
~
U1
2
MMBT2222A
Q1, Q2
2
Conn_01x02_Socket
J1, J2
1
Conn_01x04_Socket
J5
4
1N4148
D1, D2, D3, D4
2
THT 104
C1, C2
2
GRM31CR71E106KA12K
C3, C4
1
Cap
C5
8
ERA8ARW9532V
R1, R2, R3, R4, R5, R6, R7, R8

GSR sensor design files

The KiCad project lives in the fg-edu-tep/MENTORU repository on GitHub; these links point at the commit this page was built from.

GSR sensor: common questions

What microcontroller does the GSR sensor use?

The GSR sensor is built around the ESP32-S3-XIAO, from the ESP32 family.

How big is the GSR sensor PCB?

The GSR sensor measures 95.5 × 31 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the GSR sensor?

23 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the GSR sensor design files?

From the fg-edu-tep/MENTORU repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the GSR sensor design in my own project?

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

Can I test firmware for the GSR sensor 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.

More boards in MENTORU

Similar boards