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Expanding I/O Capabilities of NORVI Series

I/O (input/output) is a critical part of any programmable logic controller (PLC) system. It allows for the efficient and reliable connection of external devices to the PLC, allowing for more complex control systems.

NORVI ESP32 Industrial Arduino, has served with the best I/O combinations for both monitoring and controlling applications. On the base unit, NORVI Controllers offer below I/O Capabilities. 

  • Digital Inputs
  • 4-20mA Analog Inputs
  • 0 – 10V Analog Inputs
  • Transistor Outputs 
  • Relay Outputs

We are planning to discuss the capabilities of the Digital Inputs , Transistor outputs in a separate document. Including how they can be utilized for industrial applications. 

While we discover more and more use of the NORVI Industrial Controllers we added the expandability of I/O Capabilities.

The most obvious advantage of using I/O expansion in an Arduino PLC system is the ability to connect more external devices and increase the capacity of the system. With the use of I/O expansion, the number of devices that can be connected to the Arduino PLC can be increased significantly. This provides the user with greater flexibility, allowing them to control more devices with a single PLC. 

Another advantage of I/O expansion is the improvement of system reliability. By connecting more external devices to the PLC, the system can be monitored and controlled more accurately. This ensures that any errors or malfunctions in the system are detected quickly and efficiently. In addition, I/O expansion can help to reduce the cost of a PLC system. By adding more I/O expansion, the total cost of the system can be reduced. This is because the cost of the additional I/O expansion is much lower than the cost


We have launched below expansion products; 

  1. Analog Input Expansions
  2. Digital Input Expansions
  3. Transistor Output Expansions
  4. Relay Output Expansions

In the near future, we will be launching the LoRaWAN expansion module to enable users to get the best out of NORVI Controllers.