NPK SENSOR - RS485 MODBUS - How to READ DATA FROM HOLDING REGISTERS
This video shows how to read Data directly from Holding Registers of NPK Soil sensor.
NPK sensor uses RS485 MODBUS Communication.
We use RS485-USB dongle to connect with pc and use QMODMASTER Freeware to read the holding registers.
https://sourceforge.net/projects/qmod...
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