Modbus-Rtu Relay Module 1/2 Channel Switch Control 7-24V TTL 485 Comms
ab 8,14 €
Open relay command: A0 01 01 A2 (sent in hexadecimal). Close relay command: A0 01 00 A1 (sent in 16 hex). On-board indicator: Bluetooth-compatible status indicator (slow flashing when not connected, long light after connection) and relay status indicator (lights up after closing).
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