AquaPi for ESPHome: The Open-Source Heart of Your Smart Aquarium

from $139.00
Home Assistant Hardware:
Water Sensors:

Where the Aquarium Meets the Smart Home. AquaPi is an open-source, modular monitoring and automation system designed for the DIY-minded aquarist. Built on the powerful ESP32 microcontroller, AquaPi transforms your aquarium into a fully integrated part of your smart home ecosystem via ESPHome and Home Assistant.

Why Choose AquaPi?

Unlike closed-loop, expensive proprietary controllers, AquaPi is designed for flexibility, privacy, and affordability. It provides a professional-grade foundation that grows with your reef or planted tank.

Included Sensors: Temperature
Optional Sensors: Water Level, Water Leak
Additional Sensors: pH, Salinity, ORP, Dissolved Oxygen, Peristaltic Pumps, Gaseous CO2, Gaseous O2, SnapCam, Kasa Power Strip, and more! Available separately on our store.

Install Guide, Main Page, Blueprints, & GitHub.

Get 10% off when you purchase an EZO Circuit & Probe

Where the Aquarium Meets the Smart Home. AquaPi is an open-source, modular monitoring and automation system designed for the DIY-minded aquarist. Built on the powerful ESP32 microcontroller, AquaPi transforms your aquarium into a fully integrated part of your smart home ecosystem via ESPHome and Home Assistant.

Why Choose AquaPi?

Unlike closed-loop, expensive proprietary controllers, AquaPi is designed for flexibility, privacy, and affordability. It provides a professional-grade foundation that grows with your reef or planted tank.

Included Sensors: Temperature
Optional Sensors: Water Level, Water Leak
Additional Sensors: pH, Salinity, ORP, Dissolved Oxygen, Peristaltic Pumps, Gaseous CO2, Gaseous O2, SnapCam, Kasa Power Strip, and more! Available separately on our store.

Install Guide, Main Page, Blueprints, & GitHub.

Get 10% off when you purchase an EZO Circuit & Probe

AquaPi - pH EZO Circuit & Probe
Probe Type:
AquaPi - Salinity (EC) EZO Circuit & Probe
Probe Type:
AquaPi - ORP EZO Circuit & Probe AquaPi - ORP EZO Circuit & Probe
Probe Type:
EZO-PMP-white.png EZO-PMP-yellow.png EZO-PMP-blue.png EZO-PMP-orange.png
Color:

What is AquaPi for ESPHome?

AquaPi for ESPHome is an open-source project that allows you to connect your aquarium to your home automation system. It uses an ESP32 microcontroller and a variety of sensors to monitor your aquarium's water quality and parameters. AquaPi then sends this data to your home automation system, Home Assistant*, where you can view it, set alarms, and create automations. Learn More

Guides on Setup, quick and easy once Home Assistant is established!
Please visit our
GitHub Page for much more information on this product!

Built on the foundation of Home Assistant and ESPHome, AquaPi empowers you to:

  • Monitor key water parameters like temperature, pH, conductivity, and more.

  • Receive real-time notifications of any critical changes in your aquarium environment.

  • Automate tasks such as lighting control, temperature regulation, and water flow adjustment.

  • Build upon the existing platform to create a truly personalized monitoring system

Sensors:

  • Temperature Probe - DS18B20 Waterproof Thermistor. Can add up to 2 with a Y-cable with additional programming

  • Optical Sensors w/Mount - 2 Food Grade Optical Infrared Water Liquid Sensors with Magnetic Mount

  • Water Leak Sensor - Liquid Detection Sensor, 6ft Cable, 2 Mounting Screws w/Magnetic Mount (NOT RECOMMENDED FOR USE WITH SALTWATER)

pH: Atlas Scientific EZO-pH (Assembled)

Salinity: Atlas Scientific EZO-EC™ Conductivity (Assembled)

Dissolved Oxygen: Atlas Scientific EZO-DO (Assembled)

ORP: Atlas Scientific EZO-ORP™ (Assembled)

Peristaltic Dosing Pump: Atlas Scientific EZO-PMP™ (Assembled)

Gaseous Carbon Dioxide: Atlas Scientific EZO-CO2™(Assembled):

Screenshots:

Software Used:

HomeAssistant: Open source home automation that puts local control and privacy first.
ESPHome: A system to control your ESP8266/ESP32 and RP2040 by simple yet powerful configuration files and control them remotely through Home Automation systems.

More Information:

View our GitHub to give us more information, ideas, feedback or help the project out!

AquaPi vs Neptune Apex

AquaPi PRO Apex PRO
Home Assistant* Local & Open Source Cloud & Proprietary Software
Temperature Included - Unlimited** Included - Limited
pH Included Included
Salinity Optional Add-On Available
ORP Included Included
Dissolved Oxygen Optional Add-On Available - Additional Hardware
Water Detection Sensors 2 Optical + 1 Leak Liquid Level Sensor + 1 Optical
Controllable Outlets 6 Included, No Limit 8 Incluced
Ports 4 Water Proof Cables - Expandable Various, Splash Resistant
Price $1000 $950
* Home Assistant is an open source home automation that puts local control and privacy first and runs on dedicated hardware, a Raspberry Pi for this project.
** Daisy Chainable with Y-cables, no limit but requires some extra .yaml coding. Apex is limited by number of FMM ports on the device.
Kasa Power Strip, integrates with Home Assistant for control.
IP65 rated waterproof cables, can be used for input, output, I2C, PWM and DAC. Just 1 cable type for all peripherals.