Can somone have the NPK soil sensor ?
Is this sensor that i mean jxct soil npk sensor. Also i have the RS-485 transceiver module.
You would need to provide a web site with which unit you want (there appear to be 5 pin and 3 pin versions) which has the connection information (which seems to be in short supply.) If you also want the RS485 module the same data would be required for it.
Peter