HardLabs

Airlock

openlab-aux·airlock·Airlock-Mainboard-v2/Airlock-Mainboard.kicad_pcb

Airlock PCB layout, top view — open source ESP32 board by openlab-aux

About the Airlock PCB

Airlock is an open source ESP32 PCB design by openlab-aux, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 73 components from 34 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the LM1117-3.3 and Arduino_Nano_v3.x. By type, the board carries 24 resistors, 11 diodes, 7 connectors, 6 capacitors, 4 fuses and 4 jumpers.

From the project

This repository contains various soft- and hardware sources for the OpenLab Augsburg Airlock.

This repository contains various soft- and hardware sources for the OpenLab Augsburg Airlock.

Zvezda is the temporary solution for Airlock. See (Zvezda)[zvezda/README.md].

Main components on the Airlock

LM1117-3.3ESP32-WROOM-32Arduino_Nano_v3.x

Airlock bill of materials (BOM)

73 components, 34 distinct parts.

QtyPartRefs
1
LM1117-3.3
U1
1
ESP32-WROOM-32
U3
1
Arduino_Nano_v3.x
A1
2
BSP89
Q1, Q2
1
Screw_Terminal_01x03
J1
1
Conn_01x05_LCD
J2
1
Conn_02x03_Taster
J3
1
Conn_01x04
J4
1
TJA1051 BO Board (MCP2552I)
J5
1
Conn_02x03_Odd_Even
J6
1
Conn_02x06_Top_Bottom
J7
4
Fuse
F1, F2, F3, F4
2
Kill-Jumper
JP1: Pull to kill K1 ->, JP2: Pull to kill K2 ->
1
Jumper_2_Open
JP3
1
KACGND-Jumper
JP4
2
FINDER-36.11
K1, K2
10
Messpunkt
MP1, MP2, MP3, MP5, MP9, MP10, MP11, MP12 +2
6
BAT41
D1, D2, D8, D9, D10, D11
1
(Inn) rd 2mA
D3
1
(Auß) rd 2mA
D4
Show 14 more
QtyPartRefs
3
rd 2mA
D5(12V), D6(5V), D7(3V3)
3
100n
C1, C3, C4
2
10u
C2, C6
1
10u
C5
3
1k5
R1, R5, R8
4
?
R2, R3, R4, R6
6
4k7
R7, R9, R10, R11, R14, R15
2
47
R12, R17
2
100k
R13, R18
1
47k
R16
1
120
R19
1
680
R20
2
6k8
R21, R23
2
2k2
R22, R24

Airlock design files

The KiCad project lives in the openlab-aux/airlock repository on GitHub; these links point at the commit this page was built from.

Airlock: common questions

What microcontroller does the Airlock use?

The Airlock is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the Airlock PCB?

The Airlock measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Airlock?

73 components, from 34 distinct parts. The full bill of materials is listed on this page.

Where can I download the Airlock design files?

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

Can I use the Airlock design in my own project?

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

Can I test firmware for the Airlock 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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