HardLabs

BrailleCellDevelopementBoard

Charmander542·Senior-Design-Group-6-Braille·electrical/pcb/devboard/BrailleCellDevelopementBoard.kicad_pcb

BrailleCellDevelopementBoard PCB layout, top view — open source ESP32 board by Charmander542

About the BrailleCellDevelopementBoard PCB

BrailleCellDevelopementBoard is an open source ESP32 PCB design by Charmander542, published on GitHub. It is a 4-layer board measuring 55.5 × 34 mm, with 47 components from 36 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the AMS1117-3.3, TPS62162DSG, INA219AxD and LM5185QPWPRQ1. By type, the board carries 15 capacitors, 12 resistors, 5 ICs, 3 transistors, 2 connectors and 2 diodes.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

Welcome to the EC463 Senior Design Group 6 Braille project repository.

Welcome to the EC463 Senior Design Group 6 Braille project repository.

Main Google Doc before README migration: https://docs.google.com/document/d/1c1Lonarr0yz-ggmuZfPKdth9k53kwFiAMk2oVoeEsT8/edit?usp=sharing

Features: - ✨ Convert text to Unicode braille characters - 📁 Convert entire text files to braille - 🔍 Detailed character-by-character analysis - 📊 Visual dot pattern representation - 🎯 Full support for letters, numbers, punctuation, and symbols

Main components on the BrailleCellDevelopementBoard

ESP32-S3-WROOM-1AMS1117-3.3TPS62162DSGINA219AxDLM5185QPWPRQ1

BrailleCellDevelopementBoard bill of materials (BOM)

47 components, 36 distinct parts.

QtyPartRefs
1
ESP32-S3-WROOM-1
U2
1
AMS1117-3.3
U3
1
TPS62162DSG
U4
1
INA219AxD
U5
1
LM5185QPWPRQ1
U6
2
NMOS
Q1, Q2
1
PMOS
Q3
1
Barrel_Jack
J1
1
USB_C_Receptacle_USB2.0_14P
J2
1
120pF
Chf1
1
100nF
Css1
1
1uF
Cvcc1
1
0.1Ω
Rcs1
1
200kΩ
Rtop1
1
Transformer_1P_1S
T1
1
Thermistor_NTC
TH1
1
D_Zener
D1
1
500mV
D2
1
2.2uH
L2
1
4uF
C1
Show 16 more
QtyPartRefs
1
1.2uF
C2
1
47pF
C3
1
CIN
C7
5
C
C10, C11, C12, C13, C14
2
10uF
C15, C17
3
0.1uF
C16, C18, C20
1
22uF
C19
2
R
R1, R8
1
100Ω
R2
1
360kΩ
R3
1
10kΩ
R4
2
RCOMP
R5, R6
1
100K
R9
2
5.1k
R10, R11
1
10k
R12
1
R_Shunt
R13

BrailleCellDevelopementBoard design files

The KiCad project lives in the Charmander542/Senior-Design-Group-6-Braille repository on GitHub; these links point at the commit this page was built from.

BrailleCellDevelopementBoard: common questions

What microcontroller does the BrailleCellDevelopementBoard use?

The BrailleCellDevelopementBoard is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the BrailleCellDevelopementBoard PCB?

The BrailleCellDevelopementBoard measures 55.5 × 34 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the BrailleCellDevelopementBoard?

47 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the BrailleCellDevelopementBoard design files?

From the Charmander542/Senior-Design-Group-6-Braille repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the BrailleCellDevelopementBoard design in my own project?

The repository has no license, so all rights stay with Charmander542. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the BrailleCellDevelopementBoard 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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