☀️ Cool Down Your Greenhouse — 5% OFF On Kits — CODE: WINTER5

Home
Solutions
- - - Getting started
      🧰 Automation Starter Kits Choose your automation level for one grow zone. 🧾 What to Monitor Air, water, dosing, alerts, crop zones. ✅ What It Automates Environment, water, dosing, alerts, remote control.
      Expand your system
      🛰️ Grow Hubs (Gateways) Connect Nodes: Local reliability + cloud sync, scalable connectivity. 🧩 Sensing & Control Nodes Add zones: tanks, beds, air points, sampling locations. 🔌 Grow Control Smart power strips & relay control for equipment. 💧 DoseMate Smart dosing pumps for precision EC/pH/DO automation.
      Advanced & DIY
      🛠️ DIY Category Boards, relays, builder parts — your hardware, GEIA brain.
  - - For Growers
      Start small. Grow modular.
      One kit controls one logical zone.
      Add nodes or sensors anytime - monitor conditions, learn patterns, optimize performance, and improve each cycle.
      Browse Starter Kits
      Bring your own sensors - GEIA works with standard hardware and grows with you.
Platform
- - - Getting started
      🚀 Start Building (Free) Flash firmware, connect sensors, automate fast. 🧭 Overview How GEIA works: hardware → data → automation.
      Platform
      🕸️ Infrastructure (4 Levels) Cloud, local GrowHub, and federated edge. 📱 Mobile App & Automation Rules, alerts, dashboards, remote control.
      Guides & compatibility
      🧠 Arduino / ESP Guide ESP32 / ESP8266 setup: wiring, flash & pair for GEIA. Supports No-Code Firmware (Recommended) and Custom Code via API / MQTT. 🔌 Compatible Hardware List Supported sensors, relays, controllers. 🛠️ Add a Custom Sensor Extend GEIA with custom integrations. 💬 Community Chat (Discord) Get help, share builds, request integrations, and collaborate.
  - - Platform Snapshot
      Your Hardware, Our Intelligence
      Build a smart farm backend without building a backend. Start with one zone, scale by adding nodes.
      Start Building (Free) Downloads & Tools
      Open by design: bring your hardware, keep control of your setup.
AgTech Ecosystem
- - - Partner programs
      🤝 Join the Partner Network Labs, experts, manufacturers, builders and integrators. 🏷️ White Label & OEM Offer GEIA-powered systems under your own brand.
      Builders & integrations
      🧩 Developers & Integrations Build with APIs, MQTT, webhooks and structured data. 🤖 Hardware & Robotics Connect sensors, equipment, controllers, rovers and arms. 🧊 3D Library & Open Designs Browse or publish mounts, enclosures and practical parts. 🛡️ Security Researchers Responsible disclosure, IoT security and recognition.
      Community
      ✨ Contribute to GEIA Publish guides, software, hardware and open designs. 📣 Ambassador Program Share useful content, refer growers and earn rewards.
      Earn & infrastructure
      🕸️ Host & Earn Approved edge hosts can earn from $25/month.
  - - GEIA Network
      Join the GEIA Network
      Join as a partner, ambassador, integrator, or contributor.
      Federated Edge nodes are one optional path.
      Join Partner Network Edge Waitlist
      Partner roles: open applications.
Resources
- - - Help
      ❓ F.A.Q. Common questions, setup issues, basics. 📡 Network Status Uptime, incidents, and maintenance updates. 🛡️ Security & Disclosure Policy, reporting, and trust commitments.
      Documentation
      📚 Documentation (continuously updated) Quickstart + concepts (continuously updated). 🧠 Arduino / ESP Guide Wiring, flashing, bring-up, troubleshooting. 🛠️ Add a Custom Sensor Extend GEIA with new sensor drivers.
    - Tools
      ⬇️ Downloads & Tools Firmware tool, installers, utilities. 📱 Mobile App Install links + setup notes.
  - - Resources Hub
      Quickstart in 10 minutes
      Start with docs and tools. When you’re ready, dive into API + MQTT.
      Docs are continuously updated as the platform evolves.
      Open Documentation Downloads & Tools
      Need help fast? Join Dev Chat.
    - Developer
      🔗 REST API Docs Integrate data + control with API endpoints. 📨 MQTT Docs Publish telemetry, subscribe to commands. 💬 Dev Chat (Discord) Ask questions, share builds, request integrations.
Company
- - - Who we are
      🌱 About GEIA Mission, story, and what we’re building. 🧭 How We Think The assumptions and principles behind how GEIA is built.
      Get in touch
      ✉️ Contact Support, partnerships, press, and collaboration.
      Supporters
      📈 Early Investors Request deck or contact the founder.
      Trust
      🛡️ Security & Disclosure Security practices, data boundaries, and responsible disclosure.
  - - Built differently
      Engineers & Farmers — for Farmers
      GEIA is built to be affordable, modular, and open.
      Our goal: make smart farming accessible at global scale.
      Read the Ideology Request Pitch Deck
      Prefer Web1 simplicity? So do we.

Home
Solutions
- - - Getting started
      🧰 Automation Starter Kits Choose your automation level for one grow zone. 🧾 What to Monitor Air, water, dosing, alerts, crop zones. ✅ What It Automates Environment, water, dosing, alerts, remote control.
      Expand your system
      🛰️ Grow Hubs (Gateways) Connect Nodes: Local reliability + cloud sync, scalable connectivity. 🧩 Sensing & Control Nodes Add zones: tanks, beds, air points, sampling locations. 🔌 Grow Control Smart power strips & relay control for equipment. 💧 DoseMate Smart dosing pumps for precision EC/pH/DO automation.
      Advanced & DIY
      🛠️ DIY Category Boards, relays, builder parts — your hardware, GEIA brain.
  - - For Growers
      Start small. Grow modular.
      One kit controls one logical zone.
      Add nodes or sensors anytime - monitor conditions, learn patterns, optimize performance, and improve each cycle.
      Browse Starter Kits
      Bring your own sensors - GEIA works with standard hardware and grows with you.
Platform
- - - Getting started
      🚀 Start Building (Free) Flash firmware, connect sensors, automate fast. 🧭 Overview How GEIA works: hardware → data → automation.
      Platform
      🕸️ Infrastructure (4 Levels) Cloud, local GrowHub, and federated edge. 📱 Mobile App & Automation Rules, alerts, dashboards, remote control.
      Guides & compatibility
      🧠 Arduino / ESP Guide ESP32 / ESP8266 setup: wiring, flash & pair for GEIA. Supports No-Code Firmware (Recommended) and Custom Code via API / MQTT. 🔌 Compatible Hardware List Supported sensors, relays, controllers. 🛠️ Add a Custom Sensor Extend GEIA with custom integrations. 💬 Community Chat (Discord) Get help, share builds, request integrations, and collaborate.
  - - Platform Snapshot
      Your Hardware, Our Intelligence
      Build a smart farm backend without building a backend. Start with one zone, scale by adding nodes.
      Start Building (Free) Downloads & Tools
      Open by design: bring your hardware, keep control of your setup.
AgTech Ecosystem
- - - Partner programs
      🤝 Join the Partner Network Labs, experts, manufacturers, builders and integrators. 🏷️ White Label & OEM Offer GEIA-powered systems under your own brand.
      Builders & integrations
      🧩 Developers & Integrations Build with APIs, MQTT, webhooks and structured data. 🤖 Hardware & Robotics Connect sensors, equipment, controllers, rovers and arms. 🧊 3D Library & Open Designs Browse or publish mounts, enclosures and practical parts. 🛡️ Security Researchers Responsible disclosure, IoT security and recognition.
      Community
      ✨ Contribute to GEIA Publish guides, software, hardware and open designs. 📣 Ambassador Program Share useful content, refer growers and earn rewards.
      Earn & infrastructure
      🕸️ Host & Earn Approved edge hosts can earn from $25/month.
  - - GEIA Network
      Join the GEIA Network
      Join as a partner, ambassador, integrator, or contributor.
      Federated Edge nodes are one optional path.
      Join Partner Network Edge Waitlist
      Partner roles: open applications.
Resources
- - - Help
      ❓ F.A.Q. Common questions, setup issues, basics. 📡 Network Status Uptime, incidents, and maintenance updates. 🛡️ Security & Disclosure Policy, reporting, and trust commitments.
      Documentation
      📚 Documentation (continuously updated) Quickstart + concepts (continuously updated). 🧠 Arduino / ESP Guide Wiring, flashing, bring-up, troubleshooting. 🛠️ Add a Custom Sensor Extend GEIA with new sensor drivers.
    - Tools
      ⬇️ Downloads & Tools Firmware tool, installers, utilities. 📱 Mobile App Install links + setup notes.
  - - Resources Hub
      Quickstart in 10 minutes
      Start with docs and tools. When you’re ready, dive into API + MQTT.
      Docs are continuously updated as the platform evolves.
      Open Documentation Downloads & Tools
      Need help fast? Join Dev Chat.
    - Developer
      🔗 REST API Docs Integrate data + control with API endpoints. 📨 MQTT Docs Publish telemetry, subscribe to commands. 💬 Dev Chat (Discord) Ask questions, share builds, request integrations.
Company
- - - Who we are
      🌱 About GEIA Mission, story, and what we’re building. 🧭 How We Think The assumptions and principles behind how GEIA is built.
      Get in touch
      ✉️ Contact Support, partnerships, press, and collaboration.
      Supporters
      📈 Early Investors Request deck or contact the founder.
      Trust
      🛡️ Security & Disclosure Security practices, data boundaries, and responsible disclosure.
  - - Built differently
      Engineers & Farmers — for Farmers
      GEIA is built to be affordable, modular, and open.
      Our goal: make smart farming accessible at global scale.
      Read the Ideology Request Pitch Deck
      Prefer Web1 simplicity? So do we.

Connecting to MQTT

/

/

MQTT Integration

/

Connecting to MQTT

For Developers

⌘K

API Integration
MQTT Integration
System Changelog

Home
For Developers
MQTT Integration
Connecting to MQTT

Connecting to MQTT

MQTT Documentation moved to a new page and can be found here.

Doc navigation

← Add MQTT users / AuthMQTT Topics Hirarchy →

Still stuck? How can we help?

Updated on August 26, 2024

Was this article helpful to you? No Yes

How can we help?

Name

Email

Subject

Message

🌱

Ready to build smarter, grow better?

Start with GEIA today. Build your kit, connect your system, and grow with data.

Start with GEIA — It’s Free → Build Your Kit →

Open automation and data infrastructure for climate-resilient, efficient and sustainable agriculture.

Built and supported by

Products

Build Your Kit
Automation Starter Kits
Grow Hubs (IoT Gateways)
Sensors Nodes
Smart Dosing Pumps
Smart Power Strips
DIY
Sensors & Actuators Hardware

Platform

Platform Overview
Start Free
Features
Compatible Hardware
DIY Guides
API & MQTT
Edge Infrastructure
3D Library

AgTech Ecosystem

Join the Partner Network
Developers & Integrators
Experts & Laboratory Partners
Community Contributions
Ambassador Program
Makers & 3D Designers
White Label / OEM
Host & Earn
Security Researchers

Resources / Company

About GEIA
Contact
How we think
Documentation
Greenhouse & Hydroponics Automation DIY Guides
F.A.Q
Early Investors
Terms Of Service
Security & Disclosure Policy
Privacy Policy
Return Policy

Open GEIA in your browser No install. Works on any device.

Download the GEIA App Monitor, control and grow on the go.

GEIA Systems Inc. Delaware C-Corporation 16192 Coastal Highway, Lewes, Delaware 19958, USA

© 2026 GEIA.AI™ All rights reserved. Terms of Service Privacy Policy Security & Disclosure

Start typing and press Enter to search

Shopping Cart

No products in the cart.