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498R design

Mostakim52·ESP32-Smart-Helmet·Smart_Helmet_KiCad_Design/498R_design/498R_design.kicad_pcb

498R design PCB layout, top view — open source ESP32 board by Mostakim52

About the 498R design PCB

498R design is an open source ESP32 PCB design by Mostakim52, published on GitHub under the MIT license. It is a 2-layer board measuring 55.5 × 76.3 mm, with 13 components from 10 distinct parts.

Its main chip is the ESP32_30pin, from the ESP32 family. Other key parts include the DHT22. By type, the board carries 3 diodes, 2 ICs, 2 switches, 2 LEDs, 1 module and 1 battery holder.

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

From the project

IoT-enabled ESP32 smart helmet for construction worker safety with fall detection, environmental sensing, and real-time mobile + server alerts.

This folder contains the complete PCB design, schematics, and manufacturing files for the Smart Helmet's custom circuit board. The design was created using KiCad, an open-source electronics design automation (EDA) tool.

- 498Rdesign/ – Main KiCad schematic and PCB layout project - Gerber Files/ – Manufacturing-ready fabrication files (for PCB houses) - New Gerber Files/ – Updated gerber export with corrected drill files - Design PDF/ – Printable documentation of each PCB layer - Important Libraries/ – Component libraries, 3D models, and reference designs - Collected Data/` – Real-world…

498R design, from the project README
From the project README

Main components on the 498R design

DHT22

498R design bill of materials (BOM)

13 components, 10 distinct parts.

QtyPartRefs
1
~
U1
1
DHT22
U2
1
~
M1
1
GY-521
ACC1
1
Battery_Cell
BT1
1
SW_Push
SW1
1
SW_Push
SW2
1
~
T1
2
~
BuzzerModule1, GasSensor1
3
LED
D1, D2, D3

498R design design files

The KiCad project lives in the Mostakim52/ESP32-Smart-Helmet repository on GitHub; these links point at the commit this page was built from.

498R design: common questions

What microcontroller does the 498R design use?

The 498R design is built around the ESP32_30pin, from the ESP32 family.

How big is the 498R design PCB?

The 498R design measures 55.5 × 76.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 498R design?

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

Where can I download the 498R design design files?

From the Mostakim52/ESP32-Smart-Helmet repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 498R design design in my own project?

Yes, under the terms of its MIT license, which Mostakim52 chose for the repository.

Can I test firmware for the 498R design 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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