Why customize Shelly H&T Gen3?
Shelly H&T Gen3 gives your software a physical input. Your automation runs on Home Assistant or another local host. The linked documentation establishes a control route; the project ideas below are suggestions, not projects we have personally built or tested.
A good fit for
A room-temperature history dashboard.
Not the right fit for
A guaranteed plug-and-play result without the listed setup or accessories.
Compatibility
- Exact hardware
- Shelly H&T Gen3
- Software route
- Shelly local sensor integration
- Where code runs
- Your automation runs on Home Assistant or another local host.
- Development tools
- A laptop, a coding agent such as Claude Code or Cursor, and the tools listed in the guide.
- Evidence
- Published documentation / community project. Not hands-on tested.
Project ideas
- 01A room-temperature history dashboard
- 02A humidity reminder for a plant room
Getting started
- 01
Confirm the exact model
Match the hardware label and bundle to the linked documentation. H&T Gen3, batteries or appropriate USB power, Wi-Fi and a home automation host.
- 02
Prove the documented connection
Follow the original guide and run its smallest supported example before asking an agent to extend it. Battery-powered reporting is not a continuous high-rate data stream. Use the Gen3 instructions, not the separate Shelly BLU H&T route; security and reporting behavior depend on firmware.
- 03
Build one useful behavior
Start with a room-temperature history dashboard. Add logging, sensible timeouts and a manual off switch. Your automation runs on Home Assistant or another local host.
Setup & technical references
Starter prompt
Help me plan a room-temperature history dashboard using Shelly H&T Gen3. Read https://www.home-assistant.io/integrations/shelly first. Confirm my operating system, exact model, firmware and required accessories. Use only documented capabilities. Start with the smallest reversible test and ask before moving hardware, flashing firmware or changing credentials. Battery-powered reporting is not a continuous high-rate data stream. Use the Gen3 instructions, not the separate Shelly BLU H&T route; security and reporting behavior depend on firmware. Keep secrets out of public code.
Confirm your exact hardware before running device-changing commands.
Common questions
Where does my software run?
Your automation runs on Home Assistant or another local host.
What do I need before starting?
H&T Gen3, batteries or appropriate USB power, Wi-Fi and a home automation host.
What should I check before buying?
Battery-powered reporting is not a continuous high-rate data stream. Use the Gen3 instructions, not the separate Shelly BLU H&T route; security and reporting behavior depend on firmware.
