HardLabs

PCB Glasses

fg-edu-tep·MENTORU·PCB_Gafas/PCB_Glasses/PCB_Glasses.kicad_pcb

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

About the PCB Glasses

PCB Glasses is an open source ESP32 PCB design by fg-edu-tep, published on GitHub. It is a 2-layer board measuring 60 × 25 mm, with 10 components from 8 distinct parts.

Its main chip is the XIAO ESP32C3, from the ESP32 family. Other key parts include the module_mpu6050. By type, the board carries 3 connectors, 3 resistors, 2 ICs, 1 switch and 1 diode.

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:

Main components on the PCB Glasses

XIAO ESP32C3module_mpu6050

PCB Glasses bill of materials (BOM)

10 components, 8 distinct parts.

QtyPartRefs
1
XIAO ESP32C3
U1
1
module_mpu6050
U2
2
Conn_01x02_Socket
J1, J4
1
Conn_01x04_Socket
J2
1
SW_Push
SW1
1
LED
D1
2
22k
R1, R2
1
130
R3

PCB Glasses 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.

PCB Glasses: common questions

What microcontroller does the PCB Glasses use?

The PCB Glasses is built around the XIAO ESP32C3, from the ESP32 family.

How big is the PCB Glasses?

The PCB Glasses measures 60 × 25 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PCB Glasses?

10 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the PCB Glasses 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 PCB Glasses 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 PCB Glasses 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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