1/5 STCK. 8 Kanal 5 V 12 V 24 V RS232 IO Steuerschalter Platine Com DB9 serieller Port Relais
ab 5,71 €
3: Two serial ports: RS232 DB9 interface, TTL 232 interface. With RS232 DB9 interface and TTL 232 interface. 6 Two kinds of commands: AT command and 8-byte command, the two commands are automatically recognized, no need to switch.
Jetzt bei Ebay:
