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Automat programabil EPSICOM-PLC NANO (Arduino NANO core)


EPSICOM-PLC NANO turns any Arduino NANO into a PLC that combines the ease of use of the Arduino platform and the vast amount of software available for it with robust input and output electronic interfaces.

EPSICOM-PLC NANO can be used in several ways:

You can do anything you can do with an Arduino, in the same way, as programming it with the standard Arduino IDE. The difference is that you have more robust hardware that can help your transition from prototype to your final industrial project.

Of course, you can always modify the provided example sketches and add your custom logic!

In the industrial and residential environment, for professional applications where extreme reliability and compliance with technical and safety directives are required.





  • Z-110 DIN rail case
  • power supply, serial and I/O connections on plugin terminal blocks

Power supply:

  • 12÷24VDC power supply, with reverse polarity protection

Arduino compatibility:

  • all 5.0V and 3.3V Arduino boards with NANO pinout (Nano 33 IoT, Nano RP2040 Connect, Nano BLE Sense, Nano 33 BLE, Nano Every)


  • 4 x power relay outputs 10A / 240VAC (SPDT)
  • 4 x digital output open collector 4.5A / 350V
  • 4 x multi-mode inputs: digital or 0÷10V or 4÷10mA analog
  • 4 x optocouplers inputs
  • 4 x digital inputs or TTL level I/Os (SCL/SDA, RX/TX)
  • 1 x 0÷10V analog output


  • standard RS-232 interface to the Arduino serial pins, with electrostatic discharge protection
  • Bluetooth/WiFi/USB depending on the installed Arduino board




Power Supply

The power supply stage is a heavily protected and filtered circuit using a high-efficiency voltage regulator. EPSICOM-PLC NANO accepts a wide power supply range, from 11 to 28 VDC, and can effectively handle ripple, noise and supply voltage fluctuations.

The EPSICOM-PLC NANO module, including the Arduino NANO board, has a typical current consumption of less than 10mA at 12V, making it a great choice where low energy consumption is required.


EPSICOM-PLC NANO has 4 analogue/digital inputs, 4 TTL digital inputs and 4 optocouplers inputs. These inputs are not directly routed to Arduino’s pins. We use a robust protection circuit with front-end operational amplifiers to safely feed these inputs with industry-standard 0÷10V voltage signals or 0÷20mA current loops. The same inputs can also be used as digital inputs.

When using the digital inputs, the voltage that can be applied ranges from 0 to 10 VDC. For each input groups we have a common positive voltage (V+) and (GND), to simplify the connections.


EPSICOM-PLC NANO has 4 Single Pole Double Throw SPDT relays, quite useful in certain applications because of its internal configuration. It has one common terminal and 2 contacts in 2 different configurations: one can be Normally Closed and the other one is opened or it can be Normally Open and the other one closed.

Analog Output

EPSICOM-PLC NANO has one analogue output with a 0÷10V industry-standard range, controlled by a PWM output pin of the Arduino board. The variable voltage level is generated using a dedicated operational amplifier that offers accuracy and performance.

Serial Communication Port (RX/TX)

Serial communication on pins TX/RX uses TTL logic levels (5V or 3.3V depending on the board). Don't connect these pins directly to an RS232 serial port; they operate at +/- 12V and can damage your Arduino board. The serial port is used for communication between the EPSICOM-PLC NANO board and a computer or other devices. It communicates on digital pins (RX) and (TX) as well as with the computer via USB. If you use these functions, you cannot also use pins RX and TX for digital input or output.

Use the module for

Monitoring, control and automation of your machines, alarms, elevator control, product lines, and installations, among the most typical applications such as fans, pumps, air conditioning, full HVAC solutions, and control of AC and DC motors.

It is easy to install and configure, and very flexible thanks to the Open Source based hardware.

Instant connection and programming

The Basic Controllers family, as it uses an Arduino NANO, lets you program it through the USB. This feature allows immediate access to programming, maintaining and preparing it for its set-up. It allows you to control your equipment with no limits.

Standardized modules

The different Basic Controllers devices are programmed exactly in the same way. Once you have used one of them, the rest can be configured using the same methodology.