OpenPLC is an open-source, free-to-use Programmable Logic Controller Suite, compliant with the IEC 61131-3 standard, and working with a range of hardware platforms such as Arduino, ESP8266/ESP32, ...

// OUT_0 to OUT_7 are boolean variables provided by OpenPLC // If OUT_x is true → set pin LOW (turn relay ON) // If OUT_x is false → set pin HIGH (turn relay OFF) pcf.digitalWrite(P0, OUT_0 ? LOW : ...

OpenPLC is an open-source industrial controls platform that allows the transformation of popular microcontrollers into a programmable logic controller (PLC). OpenPLC is a fully functional open-source ...

const long duration = 1000; //determines the updating of the POT data on the LCD long rememberTime = 0; //keeps track of the POT data update time LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD ...