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Get HomeMaster hardware to review

Are you a blogger, tech reviewer, or content creator in the Home Assistant, ESPHome, or smart-home space? HomeMaster builds open-source industrial DIN-rail controllers for Home Assistant — and we'd love to get them into your hands.


Why HomeMaster is worth a review:


  • Genuinely open — hardware (CERN-OHL-W v2) and firmware (MIT) are public on GitHub. Your audience can inspect, flash, and rebuild everything you show.
  • Native ESPHome, no MQTT, no cloud — devices appear in Home Assistant in seconds and keep running locally even if the network or hub goes down.
  • Real industrial I/O — DIN-rail controllers and modules with RTD, 0–10 V analog, 3-phase energy metering, dimming, alarm I/O and more.
  • EU-made, CE-marked — designed and manufactured in Romania, shipped and supported across Europe.

What We Offer:

  • Hardware for review — real units from our range to test and build with, not a rushed loaner.
  • Full technical support — datasheets, schematics, firmware, wiring help, and fast answers while you prepare your piece.
  • No strings on your verdict — we want honest, hands-on content. Praise it or break it; your review is yours.

Your Creative Freedom

Written review, deep-dive video, podcast, build log, or a Home Assistant integration walkthrough — whatever fits your audience best. If you build something interesting with our hardware, that's the review we love most.

Ready to build? Tell us about your channel and which products you'd like to review.

For collaboration inquiries, reach out to us at [email protected].


Contact us

Review Request Form: 

Your full name or blog name.
Your primary contact email.
Provide links to your blog, Instagram, YouTube, Twitter, etc.
Select from our products: MicroPLC, MiniPLC, Opentherm Gateway, Relay Modules, RGBCCT Module, etc.
Please describe how you plan to review or showcase our products. Include any planned blog posts, videos, or social media content
Briefly describe your audience: e.g., tech enthusiasts, smart home hobbyists, Home Assistant users, etc.
If applicable, share any experience with reviewing similar smart home devices or technology.
For sending the products for review, please provide your shipping address.
Any specific requests, questions, or ideas for collaboration.
Submit