Summary

Add support for the NodOn TRV-4-1-00 Thermostatic Radiator Valve to the zigbee-thermostat driver.

Device Information

• Manufacturer: NodOn
• Model: TRV-4-1-00
• Type: Thermostatic Radiator Valve (TRV)
• Protocol: Zigbee
• Device Type: 0x0301 (Thermostat)

Key Features

• Battery-optimized reporting intervals:
  • Temperature: 5s-1h intervals, 0.5°C change threshold
  • Setpoint: 1s-24h intervals, 0.5°C change threshold
  • Mode: 1s-24h intervals, any change
  • Battery: 5min-24h intervals, 1% change threshold
• Setpoint range validation (8-28°C) with automatic clamping
• Standard Zigbee thermostat cluster support (heating only)
• Proper cluster binding for bidirectional communication
• Reads device capabilities (ControlSequenceOfOperation, min/max setpoint limits)

Implementation Details

1. Added fingerprint entry in fingerprints.yml
2. Created device profile thermostat-nodon.yml with proper setpoint range
3. Implemented sub-driver in src/nodon/init.lua with:
   • Fingerprint matching function
   • Custom setpoint validation handler
   • Battery-optimized reporting configuration
   • Cluster binding setup
4. Registered sub-driver in main init.lua

Testing

This driver has been tested with the NodOn TRV-4-1-00 device and verified to:

• Properly discover and pair the device
• Support bidirectional communication (device changes update in app)
• Enforce setpoint range limits
• Optimize battery life with appropriate reporting intervals