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I use opc arduino for communication between scada and mega 2560. I have all DI and AI tags and everything is fine. I have an analog temperature sensor for reading the temperature (0.1 mV = 1 C). But now I want to use only a digital sensor such as DHT11 and need some code for the operation of the sensor. I’m not sure how it works now with opc. Do I need to add a DHT11 code in sketch before the OPC code? Do I have to change something to the OPC sketch?