Modbus RTU Communication Between Arduino-Based Temperature Sensor and NI LabVIEW
The Arduino acquires ambient temperature through an LM35 sensor and reads the measured values in Modbus registers. LabVIEW periodically queries the slave using Modbus RTU frames over serial/RS-485, validates CRC16, and displays the readings through a graphical front panel. The system demonstrates reliable master–slave data exchange, supporting features such as real-time monitoring, data logging, and scalable multi-slave communication