Kit Specifications

• Enclosure (Box + Lid)
  • Material: PLA
  • Dimensions: 80 × 96 × 40 mm
• NodeMCU V3 ESP8266 Wi-Fi Module
  • Microcontroller: 5V (via micro USB)
  • Wi-Fi: IEEE 802.11 b/g/n (2.4GHz only)
• Relay Board 4ch
  • Input:
    • VCC: Positive supply voltage (5V)
    • GND: Ground
    • IN1–IN4: Relay control port
  • Output:
    • Connect a load: DC 30V/10A, AC 250V/10A
• Dupont F-F cables (10cm) – (Mirocontroller - Relay Board)
• LED diode (5mm)
• Screws (M3) – 9 pcs
• Operating Conditions:
  • Humidity ≤ 90>#/li###
  • Temperature: 0°C to 40°C
• Mobile App: roVad Smart
  

Features

• 4 independent relay channels
• AP Mode (offline, local control)
• Wi-Fi Mode (remote control via MQTT)
• LED indicator for mode and status
• Relay timers for automated switching
• Two-way Interactive Communication
  • Send commands via MQTT or the ROVAD Smart App on your phone.
  • The NodeMCU microcontroller responds immediately with real-time status or data.
  • You can request information such as:
    • Current relay states
    • Timer settings
    • Exact device time
  • This enables full interactive control and feedback, making the system more responsive and intuitive.
• Compatible with ROVAD Smart Android App for dashboard control
• Suitable for hobbyists, makers, students, and developers

Safety Notice

• High-voltage AC (110–250V) can be switched. Take extreme caution.
• Always disconnect power before assembly, wiring changes, or maintenance.
• Manufacturer is not responsible for damages due to misuse or improper assembly.
• If you are not experienced with electrical wiring, seek assistance from a qualified technician.

Two-way communication via the app allows real-time interaction with the microprocessor. Users can monitor relay statuses, time, and timers at any moment. We welcome your suggestions for new commands.

Roadmap

This project is part of a growing DIY smart home initiative. Future plans include:

• Upgraded kits: 6ch, 8ch, 16ch versions
• Continued roVad Smart App development with interactive elements
• New commands and advanced automation
• Community feedback integration

License & Disclaimer

• DIY educational and development purposes only
• Manufacturer assumes no liability for misuse, damage, or injury
• Follow standard electrical safety practices