Arduino at work on HVAC product

Working on heat recovery ventilation automation based on Arduino UNO rev3 board with a custom shield to connect:

  • Two temperature sensor (ntc);
  • A 0..10V analog input
  • Two inverter controlled by PWM 0..5V or 0..10V output
  • Four static 24V relay-ready outputs
  • Modulating valve mounted on a heating coil controlled by a PID
  • Freecooling by-pass damper
  • Anti-freeze damper
  • Modbus RTU on RS485 to communicate with a remote display

Remote display based on Arduino UNO rev3 board wall mounted with:

  • LCD display with 4 arrow keys
  • Two level menu navigation
  • Modbus RTU on RS485 to communicate with the HVAC device

At now we have made 12 plants shipped in Italy, France and Africa

Stay tuned!

About andreapiovesan

Freelance software developer View all posts by andreapiovesan

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