Arduino data to csv file using Modbus over usb (Modbus RTU)

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This tutorial shows how to make arduino code that lets the arduino act as a modbus slave. Data is then read from the arduino using a modbus client program called "bvmodbus". The data is finally saved to a csv file and plotted in excel.

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I found two new modbus libraries for Arduino that I prefer to use. Check it out on Github:
and

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hi, great video, please show example for writing to slave from client

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