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Node-Red-flows for KC868-Hx relay control by USB-RS232 cable
#1
here is node running on Node-Red by Raspberry pi4 to control one relay ON/OFF by USB port. (use USB-RS232 convert cable) suit for all model of KC868 relay controller.

.zip   KC868-Relay-Controller-USB-RS232.zip (Size: 2.98 KB / Downloads: 393)
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