HardLabs

Electropulse

Shehroz30·electropulse·PCB/meddevelec.kicad_pcb

Electropulse PCB layout, top view — open source ESP32 board by Shehroz30

About the Electropulse PCB

Electropulse is an open source ESP32 PCB design by Shehroz30, published on GitHub under the MIT license. It is a 4-layer board measuring 50 × 50 mm, with 51 components from 30 distinct parts.

Its main chip is the ESP32-C3-WROOM-02-N4, from the ESP32 family. Other key parts include the TPS55340RTER and TPS63020DSJR. By type, the board carries 20 capacitors, 15 resistors, 4 transistors, 3 ICs, 3 diodes and 2 connectors.

It belongs with the iot & wireless designs in this gallery.

From the project

A simple TENs device

A custom, homemade, low voltage, simple TENs device

A link to the Onshape file can be found here

The code is written using Arduino IDE compiled for an ESP32-C3. Please note that the local host where the web page is hosted depends entirely on your ESP32, so it may not be the same for everyone. Also be sure to input your wifi credentials when flashing so that the ESP32 can connect to WiFi.

Electropulse, from the project README
From the project README

Main components on the Electropulse

ESP32-C3-WROOM-02-N4TPS55340RTERTPS63020DSJR

Electropulse bill of materials (BOM)

51 components, 30 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3-WROOM-02-N4
ESPRESSIF(乐鑫)
U1
1
TPS55340RTER
TI(德州仪器)
U2
1
TPS63020DSJR
U5
2
MMBT2222A
Q2, Q4
2
FZT853TA
DIODES(美台)
Q3, Q5
1
Conn_01x02
J1
1
MC-311D
J5
2
TS-1088-AR02016
SW1, SW3
1
D_Schottky
D1
1
LED
D2
1
USBLC6-2SC6
D4
1
2.2uH
L1
1
10uH
L2
4
4.7uF
C1, C2, C3, C4
1
0.047uF
C5
7
0.1uF
C6, C7, C9, C10, C11, C12, C13
1
10uF
C8
2
100nf
C18, C23
2
10uf
C21, C22
3
22uf
C25, C26, C27
Show 10 more
QtyPartRefs
1
250k
R1
1
330
R2
3
10k
R3, R10, R14
1
75k
R6
1
2k
R7
2
5.1k
R9, R11
2
14
R13, R19
1
1M
R15
1
180k
R16
2
1K
R17, R18

Electropulse design files

The KiCad project lives in the Shehroz30/electropulse repository on GitHub; these links point at the commit this page was built from.

Electropulse: common questions

What microcontroller does the Electropulse use?

The Electropulse is built around the ESP32-C3-WROOM-02-N4, from the ESP32 family.

How big is the Electropulse PCB?

The Electropulse measures 50 × 50 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Electropulse?

51 components, from 30 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 Electropulse design files?

From the Shehroz30/electropulse 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 Electropulse design in my own project?

Yes, under the terms of its MIT license, which Shehroz30 chose for the repository.

Can I test firmware for the Electropulse 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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