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Open Source PLC based on the arduino platform

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PLCduino is an open hardware alternative for industrial and home automation. It uses the well known ATmega chips as main processor, the same used on Arduino. This means that PLCduino is code-compatible with all arduino sketches.

PLCduino Web Site


  • Four Protected 24V Digital Inputs
  • Four Protected 24V Digital Outputs, while two of them are fast PWM Outputs
  • Four Protected 24V Analog Inputs
  • USB Communication (also used to program)
  • SPI & I2C buses for peripherals and I/O expansions
  • Open Source IDE with c++ programming
  • Open Source IDE with Ladder programming
  • Expansion Cards - Digital I/O, Analog I/O, Ethernet & more...
  • 16MHz ATmega328P as main processor


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Additional Project Details

Intended Audience

Advanced End Users, Developers, Engineering

User Interface


Programming Language

C#, C++



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