DC 12V PC COM DB9 RS232 Serielle Schnittstelle Verzögerungsrelais ARM Fernbedienung Schalttafel
12,16 €
3 Two serial ports: RS232 DB9 interface, TTL 232 interface. 1 PCS 1 channel DC 12VDB9 RS232&TTL232 Relay Board. Toggle : Enter the Toggle command, the Rreceiver Relay is Open, Enter the Toggle command again, Relay is Close;.
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