Open-source ESP32-S3 firmware for the Mars Hydro iHub-Pro grow controller - local VPD climate control, Home Assistant (MQTT), web dashboard, login, OTA. GPL-3.0.
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Updated
Jun 21, 2026 - C
Open-source ESP32-S3 firmware for the Mars Hydro iHub-Pro grow controller - local VPD climate control, Home Assistant (MQTT), web dashboard, login, OTA. GPL-3.0.
ESP32-S3 environment controller for temperature, humidity, CO₂ & light — touchscreen UI, web interface, push notifications
Local-first climate automation for controlled environments.
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