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Esp32-s2

hggh·window-handle-sensor·pcb/esp32-s2/esp32-s2.kicad_pcb

Esp32-s2 PCB layout, top view — open source ESP32 board by hggh

About the Esp32-s2 PCB

Esp32-s2 is an open source ESP32 PCB design by hggh, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 40.4 × 33.8 mm, with 31 components from 22 distinct parts.

Its main chip is the ESP32-S2-WROOM, from the ESP32 family. Other key parts include the XC6220. By type, the board carries 15 resistors, 5 capacitors, 3 diodes, 2 ICs, 2 transistors and 2 connectors.

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

From the project

window handle contact sensor

get the status of your windows. sensor is between your handle and the window.

replace xc6220 footprint with the one from KiCAD add a button for wifi reset * battery connector rotate it: open should be on top

This PCB is the sensor. It has three hall sensors placed on a 0.6mm pcb.

library used: https://github.com/hggh/kicad-libraries

This PCB is the controller board with the ESP32-S2. The thickness of this pcb can be 1.0-1.6mm.

Esp32-s2, from the project README
From the project README

Main components on the Esp32-s2

XC6220ESP32-S2-WROOM

Esp32-s2 bill of materials (BOM)

31 components, 22 distinct parts.

QtyPartRefs
1
XC6220
U1
1
ESP32-S2-WROOM
U2
1
BC817
Q1
1
BC807
Q2
1
BATT
J1
1
HALL-CONN
J2
1
ESP32Header
H1
1
RST
SW2
1
Blue
D1
1
Red
D2
1
Green
D3
1
22µF
C1
1
4,7µF
C2
1
220µF
C3
1
100nF
C4
1
1µF
C5
3
10k
R1, R12, R13
3
100
R2, R3, R4
5
10M
R5, R6, R7, R8, R9
2
1k1
R10, R11
Show 2 more
QtyPartRefs
1
10k
R14
1
0
R15

Esp32-s2 design files

The KiCad project lives in the hggh/window-handle-sensor repository on GitHub; these links point at the commit this page was built from.

Esp32-s2: common questions

What microcontroller does the Esp32-s2 use?

The Esp32-s2 is built around the ESP32-S2-WROOM, from the ESP32 family.

How big is the Esp32-s2 PCB?

The Esp32-s2 measures 40.4 × 33.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Esp32-s2?

31 components, from 22 distinct parts. The full bill of materials is listed on this page.

Where can I download the Esp32-s2 design files?

From the hggh/window-handle-sensor repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Esp32-s2 design in my own project?

Yes, under the terms of its GPL-3.0 license, which hggh chose for the repository.

Can I test firmware for the Esp32-s2 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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