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Esp32-aquarium controller

voltlog·esp32-aquarium-controller·HW/Voltlog ESP32 Relay Controller.kicad_pcb

Esp32-aquarium controller PCB layout, top view — open source ESP32 board by voltlog

About the Esp32-aquarium controller PCB

Esp32-aquarium controller is an open source ESP32 PCB design by voltlog, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 122 × 86 mm, with 60 components from 37 distinct parts.

Its main chip is the ESP32-WROOM-32D, from the ESP32 family. Other key parts include the NCP1117-3.3_SOT223, FM24C64C and ULN2003AD. By type, the board carries 17 capacitors, 11 connectors, 9 resistors, 6 diodes, 5 fuses and 4 ICs.

It belongs with the sensors designs in this gallery.

From the project

ESP32 based aquarium/terrarium controller

This project started when a friend of mine which has a snake terrarium asked for my help to build a system that is capable of regulating temperature and humidity so the snake can live in optimum conditions. I’m not necessarily a snake lover, I would rather stay away from these kinds of creatures but that doesn’t stop me from helping my friend.

The ESP32 module is the core of this board and it serves as a central processor taking in sensor data and deciding when to switch on/off the 4 relay controlled outputs to adjust the environment inside the aquarium/terrarium.

Esp32-aquarium controller, from the project README
From the project README

Main components on the Esp32-aquarium controller

ESP32-WROOM-32DNCP1117-3.3_SOT223FM24C64CULN2003AD

Esp32-aquarium controller bill of materials (BOM)

60 components, 37 distinct parts.

QtyPartRefs
1
ESP32-WROOM-32D
U1
1
NCP1117-3.3_SOT223
U2
1
FM24C64C
U3
1
ULN2003AD
U4
1
AC_IN
J1
1
TH2
J2
1
TH1
J3
1
I2C
J4
1
VoltLink_target
J5
1
ADC
J6
1
GPIO
J7
1
CH1
J8
1
CH2
J9
1
CH3
J10
1
CH4
J11
1
250V 0.5A (slow)
F1
4
Fuse
F2, F3, F4, F5
4
FINDER-36.11
K1, K2, K3, K4
1
Housing
N1
1
TAS5-5-W
PS1
Show 17 more
QtyPartRefs
1
275V
RV1
1
USER
SW1
1
SMBJ6.0A
D1
1
POWER
D2
1
CH1
D3
1
CH2
D4
1
CH3
D5
1
CH4
D6
9
0.1uF
C1, C2, C5, C6, C8, C9, C10, C12 +1
1
22uF
C3
1
220uF
C4
6
10uF
C7, C11, C13, C14, C15, C16
2
10K
R1, R6
4
4K7
R2, R3, R4, R5
1
1K
R7
1
270R
RN1
1
2K
RN3

Esp32-aquarium controller design files

The KiCad project lives in the voltlog/esp32-aquarium-controller repository on GitHub; these links point at the commit this page was built from.

Esp32-aquarium controller: common questions

What microcontroller does the Esp32-aquarium controller use?

The Esp32-aquarium controller is built around the ESP32-WROOM-32D, from the ESP32 family.

How big is the Esp32-aquarium controller PCB?

The Esp32-aquarium controller measures 122 × 86 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Esp32-aquarium controller?

60 components, from 37 distinct parts. The full bill of materials is listed on this page.

Where can I download the Esp32-aquarium controller design files?

From the voltlog/esp32-aquarium-controller repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

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

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

Can I test firmware for the Esp32-aquarium controller 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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