Modbus RTU – RS485 converter hat for HW3.7+
It allows convenient connection to the Modbus RTU bus, also outputs a serial port and 3.3V power supply (does not block the serial port, uses free GPIO).
Currently, the Lan Controller supports the following devices on the Modbus RTU bus:
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Eastron SDM72 and SDM120M energy meters.
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Water parameter sensor RDO-PRO-X.
NOTICE: this board works only with Lan Controller HW3.7
