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Pocket lightning detector

Matyas604·Pocket-lightning-detector·PCB/Pocket lightning detector.kicad_pcb

Pocket lightning detector PCB layout, top view — open source ESP32 board by Matyas604
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About the Pocket lightning detector PCB

Pocket lightning detector is an open source ESP32 PCB design by Matyas604, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 99.7 × 35 mm, with 56 components from 34 distinct parts.

Its main chip is the ESP32-C3-MINI-1-N4, from the ESP32 family. Other key parts include the AP2112K-3.3, USBLC6-2SC6, AS3935, TP4056-42-ESOP8 and DW01A. By type, the board carries 18 capacitors, 18 resistors, 6 ICs, 4 switches, 3 diodes and 2 transistors.

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

From the project

A lightning detector that runs on a battery and fits in your pocket. It records the distance, energy and current time of a lightning strike, and you can then view this data via Bluetooth in mobile app. The time is synchronized via Bluetooth.

I really enjoyd this project because I tried out a lot of different thigs: studying datasheets and schematics, searching for and creating my own schematic, and designing the PCB and case.

Pocket lightning detector, from the project README
From the project README

Main components on the Pocket lightning detector

ESP32-C3-MINI-1-N4AP2112K-3.3USBLC6-2SC6AS3935TP4056-42-ESOP8DW01A

Pocket lightning detector bill of materials (BOM)

56 components, 34 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-C3-MINI-1-N4
U1
1
AP2112K-3.3
U2
1
USBLC6-2SC6
U3
1
AS3935
U4
1
TP4056-42-ESOP8
U5
1
DW01A
U6
1
FS8205A
Q1
1
SS8550
Q2
1
Crystal
Y1
1
USB_C_Receptacle_USB2.0_16P
J1
1
Conn_01x02_Pin
J2
1
Buzzer
BZ1
2
TS-1088-AR02016
S1, S2
2
TL2285EE
S3, S4
1
PESD5V0L1ULD
D1
1
LED Red
D2
1
LED Blue
D3
1
100uH
L1
2
4uF
C1, C2
2
4.7uF
C3, C4
Show 14 more
QtyPartRefs
4
100nF
C5, C9, C10, C11
1
22uF
C6
2
TBD
C7, C8
1
1uF
C12
2
10uF
C13, C18
2
470pF
C14, C15
2
0.1uF
C16, C17
4
5.1k
R1, R2, R11, R12
1
0R
R3
1
TBD
R4
5
10k
R5, R7, R8, R9, R10
2
100R
R6, R17
4
1k
R13, R14, R16, R18
1
1.2k
R15

Pocket lightning detector design files

The KiCad project lives in the Matyas604/Pocket-lightning-detector repository on GitHub; these links point at the commit this page was built from.

Pocket lightning detector: common questions

What microcontroller does the Pocket lightning detector use?

The Pocket lightning detector is built around the ESP32-C3-MINI-1-N4, from the ESP32 family.

How big is the Pocket lightning detector PCB?

The Pocket lightning detector measures 99.7 × 35 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pocket lightning detector?

56 components, from 34 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 Pocket lightning detector design files?

From the Matyas604/Pocket-lightning-detector 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 Pocket lightning detector design in my own project?

Yes, under the terms of its GPL-3.0 license, which Matyas604 chose for the repository.

Can I test firmware for the Pocket lightning detector 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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