{"product_id":"yye-1-5v-12v-24v-rs232-serial-port-control-relay-module-mcu-max232-usb-control-switch-board","title":"5V\/12V\/24V RS232 Serial Port Control Relay Module MCU MAX232 USB Control Switch Board","description":"Festures: \u003cbr\u003e\nSupply voltage: DC 5\/12\/24V (Optional). \u003cbr\u003e\nCommunication chip: MAX232. \u003cbr\u003e\nCommunication protocol: RS232 serial port communication. \u003cbr\u003e\nCommunication format: (9600, 8, NONE, 1). \u003cbr\u003e\nBaud rate: 9600kbps, 8 bits, no parity, 1 stop bit. \u003cbr\u003e\nThe protocol is very simple, providing single-chip source program for easy porting. When using the serial port assistant to send the character type A, the relay opens; When sending the character type a, the relay closes. \u003cbr\u003e\n  \u003cbr\u003e\nPackage Included: \u003cbr\u003e\n1 x 5V\/12V\/24V RS232 Serial Port Control Relay Module","brand":"GreenZech","offers":[{"title":"Default Title","offer_id":44966569345194,"sku":"GZCMB-3803-01-EC","price":16.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0280\/6179\/4375\/files\/6f184b70-d293-42a3-af3e-96962d75e5e1.jpg?v=1690600160","url":"https:\/\/greenzech.com\/products\/yye-1-5v-12v-24v-rs232-serial-port-control-relay-module-mcu-max232-usb-control-switch-board","provider":"GreenZech","version":"1.0","type":"link"}