head to head · open source
OpenMQTTGateway vs HAsmartirrigation
OpenMQTTGateway has 4,094 GitHub stars, 906 forks, 48 open issues and last shipped today. HAsmartirrigation has 551 stars, 92 forks, 27 open issues and last shipped 7 days ago. OpenMQTTGateway leads on adoption by 643% (4,094 vs 551 stars). OpenMQTTGateway is written in C++ under GPL-3.0; HAsmartirrigation is written in Python under MIT. OpenMQTTGateway has attracted 22% as many forks as stars, HAsmartirrigation 17%. OpenMQTTGateway was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (home-automation), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| OpenMQTTGateway | HAsmartirrigation | |
|---|---|---|
| GitHub stars | ★ 4.1K | ★ 551 |
| License | GPL-3.0 | MIT |
| Written in | C++ | Python |
| Last push | 2026-09-20 | 2026-09-13 |
| Forks | ⑂ 906 | ⑂ 92 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenMQTTGateway if
- You weight community size — 4.1K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick HAsmartirrigation if
- You want the HAsmartirrigation feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and HAsmartirrigation fits your workflow better
About OpenMQTTGateway
OpenMQTTGateway is an open source C++ gateway firmware for ESP8266 and ESP32 boards that connects local radio and sensor protocols to MQTT. It lives in the home automation ecosystem and is associated with Home Assistant, OpenHAB, NodeRed, and AWS IOT. The project aims to unify various technologies and protocols into a single firmware, reducing the need for multiple physical bridges.
read the full OpenMQTTGateway overview →
About HAsmartirrigation
HAsmartirrigation is a Smart Irrigation custom component for Home Assistant, written in Python under the MIT licence, that calculates how long to run an irrigation system in order to compensate for moisture lost through evapotranspiration — it is for Home Assistant users who want lawns, gardens and crops watered against measured moisture loss rather than against a fixed timer.
read the full HAsmartirrigation overview →
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Frequently asked questions
Is OpenMQTTGateway or HAsmartirrigation more popular?
OpenMQTTGateway has 4,094 GitHub stars and HAsmartirrigation has 551. OpenMQTTGateway has the larger community by that measure.
Are OpenMQTTGateway and HAsmartirrigation free?
Both are open source. OpenMQTTGateway is licensed under GPL-3.0 and HAsmartirrigation under MIT. Neither carries a licence fee.
What is the difference between OpenMQTTGateway and HAsmartirrigation?
OpenMQTTGateway is written in C++ and HAsmartirrigation in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenMQTTGateway or HAsmartirrigation?
Choose OpenMQTTGateway if you want the larger community (4,094 stars) or its GPL-3.0 licence terms. Choose HAsmartirrigation if its feature set, stack or MIT licence fits better. Both are self-hostable.