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Purify concentrator

AndreasNosal·Purify-concentrator·PCB/EuropeYoungEnergy-enviroment board.kicad_pcb

Purify concentrator PCB layout, top view — open source ESP32 board by AndreasNosal

About the Purify concentrator PCB

Purify concentrator is an open source ESP32 PCB design by AndreasNosal, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 100 × 100 mm, with 48 components from 32 distinct parts.

Its main chip is the esp32-wemos-d1-mini, from the ESP32 family. Other key parts include the LM393N. By type, the board carries 13 capacitors, 12 resistors, 7 connectors, 5 diodes, 3 transistors and 2 ICs.

From the project

Air monitoring tool. It features a sleek design with all 3D files, Gerber files, and code available in the repository.

This project is an electrical design crafted to be accessible for beginners. It employs through-hole components (THD), making it easy to assemble with a standard soldering iron. All complex circuitry is integrated into modules that mount directly onto the main PCB, eliminating the need for surface-mount devices (SMD) and simplifying the soldering process.

- Overvoltage Protection: Prevents damage from voltage spikes. - Reverse Voltage Protection: Guards against incorrect polarity connections. - Active Buzzer & LED Indicators: Provides clear audio and visual feedback. - Energy-Efficient…

Purify concentrator, from the project README
From the project README

Main components on the Purify concentrator

esp32-wemos-d1-miniLM393N

Purify concentrator bill of materials (BOM)

48 components, 32 distinct parts.

QtyPartRefs
1
esp32-wemos-d1-mini
U1
1
LM393N
LM393N_LTB
ON Semiconductor
U2
2
IRLZ44N
Q1, Q2
1
2N3906
Q3
1
Conn_01x02_Pin
J1
1
Conn_01x04
J2
1
Conn_01x03
J3
1
Conn_01x18
J4
1
Conn_02x04_Counter_Clockwise
J5
1
Conn_02x06_Counter_Clockwise
J6
1
Barrel_Jack
J7
1
Battery_Cell
BT1
1
Buzzer
BZ1
1
BUCK CONVERTER
PCB1
1
~
PCB2
1
R_Potentiometer_Trim
RV1
1
SW_Push_Dual_x2
SW1
1
D_Zener 12V
D1
1
D_Zener 16V
D2
1
1N5819
D3
Show 12 more
QtyPartRefs
1
LED
D4
1
LED_RKGB
D5
4
0.1uF
C1, C4, C7, C9
5
1uF
C2, C5, C8, C10, C13
1
2000uF
C3
3
1000uF
C6, C11, C12
4
K10
R1, R2, R10, R11
2
K1
R3, R12
3
K4.7
R4, R5, R9
1
R150
R6
1
R160
R7
1
R100
R8

Purify concentrator design files

The KiCad project lives in the AndreasNosal/Purify-concentrator repository on GitHub; these links point at the commit this page was built from.

Purify concentrator: common questions

What microcontroller does the Purify concentrator use?

The Purify concentrator is built around the esp32-wemos-d1-mini, from the ESP32 family.

How big is the Purify concentrator PCB?

The Purify concentrator measures 100 × 100 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Purify concentrator?

48 components, from 32 distinct parts. The full bill of materials is listed on this page.

Where can I download the Purify concentrator design files?

From the AndreasNosal/Purify-concentrator repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Purify concentrator design in my own project?

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

Can I test firmware for the Purify concentrator 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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