{"product_id":"rs232-serial-control-for-dc-5v-2-channel-relays","title":"[Discontinued] RS232 Serial Control for DC 5V 2-Channel Relays","description":"\u003ch5\u003eSPECIFICATION\u003c\/h5\u003e \u003cul\u003e \u003cli\u003ePower requirements: DC4.5V - 5V, with inside positive, outside negative; or DC9-12V, First pin connectes to VDD, second pin connected to GND.\u003c\/li\u003e \u003cli\u003ePCB dimensions: 71mm X 47mm\u003c\/li\u003e \u003cli\u003eMaster control chip STC15F104W\u003c\/li\u003e \u003cli\u003eEach channel is set from 1 to 255 seconds delay independently\u003c\/li\u003e \u003cli\u003eSimple to operate, most serial instruction are single byte instruction\u003c\/li\u003e \u003cli\u003eOnboard 2 relay (which can be accessed extended 2-way relay module)\u003c\/li\u003e \u003cli\u003eWith absorption diode circuit\u003c\/li\u003e \u003cli\u003eEach relay has a LED indicator, LCD lights relay absorption\u003c\/li\u003e \u003cli\u003eWith 1-channel power indicator\u003c\/li\u003e \u003cli\u003eWith capacitor filter circuit, with improved stability\u003c\/li\u003e \u003cli\u003eSupport for 5V or 9-12V input voltage\u003c\/li\u003e \u003cli\u003eThe thickness of PCB is 1.6mm, made from military FR-4 board material,along with mounting holes\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eInterface:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eJ5: using 5V power supply input\u003c\/li\u003e \u003cli\u003eJ6: using 9 ~ 12V power input, No.1 pin connects VCC, No.2 connects GND\u003c\/li\u003e \u003cli\u003eJ3 ~ J4 blue terminal: connect user load, it can be used 220V AC, or less than 30V DC device, the device current can not exceed the relay standard load . Each relay has a normally open contact, a normally closed contact and a common contact. When relay absorps, the common contact and normally open contact conduct; when the relay releases, public contact and normally closed contact conduct.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSerial communication in speed 9600bps, relay control command byte format\u003c\/p\u003e \u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"400\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd width=\"50\"\u003e \u003cp\u003e7\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003e6\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003e5\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003e4\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003e3\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003e2\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003e1\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003e0\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd width=\"50\"\u003e \u003cp\u003e0\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003e0\u003c\/p\u003e \u003c\/td\u003e \u003ctd colspan=\"2\" width=\"100\"\u003e \u003cp\u003eCommand code\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003eCH4\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003eCH3\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003eCH2\u003c\/p\u003e \u003c\/td\u003e \u003ctd width=\"50\"\u003e \u003cp\u003eCH1\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e","brand":"SainSmart","offers":[{"title":"Default Title","offer_id":49290282893466,"sku":"101-70-166","price":6.3,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/coretarps.co.uk\/products\/rs232-serial-control-for-dc-5v-2-channel-relays","provider":"My Store","version":"1.0","type":"link"}