Product Name£º433M DC12V 3ch Arduino RF Relay Control USB UART RS232 Home Automation MEGA2560 We provide ARDUINO sample code 、 please contact after your order at Ebay message . DIY Kits No.: RT323 Qty: 1 PCS 433M Wireless transmitter module(Does not include Arduino UNO);3 PCS 433M 1 channels relay switch;1 PCS 433M Wireless transmitter module & 3 PCS 433M 1 channels relay switchRT323_2 Wireless transmitter module connected with Arduino uno(replace PT2262 Remote Keyfob£©RT214_11 USE: RT323_3 Software control£º How to use:send "a" trigger A channel relay、send "b" trigger A channel relay、Etc. arduino core fragment(complete code through ebay message Request): //Author: cantone-electonics//Arduino 1.0//Arduino uno R3//Making a wireless remote control with arduino ... //send:8 Address Bits、 4 Data Bits、 Sync bitvoid send_data() void setup() { // initialize the LED pin as an output: pinMode(ledPin、 OUTPUT); // initialize the encoder DOUT pin as an output pinMode(data_out、 OUTPUT); Serial.begin(9600);}void loop(){ ... while(1) { //get key from pc serial port while (Serial.available() > 0) { keydata = Serial.read(); receive_flag = 1; delay(2); } if(receive_flag == 1)//if get key、send key { receive_flag = 0; if((keydata == 'a') || (keydata == 'A'))//trigger A channel relay. { Temporary[2] = 0xC0;// 0xC0 is A button key digitalWrite(ledPin、 HIGH);//Turn on led send_data();//send code word Serial.println(".....trigger A channel relay....."); } else if((keydata == 'b') || (keydata == 'B'))//trigger B channel relay. { Temporary[2] = 0x30;// 0x30 is B button key digitalWrite(ledPin、 HIGH);//Turn on led send_data();//send code word Serial.println(".....trigger B channel relay....."); } else if((keydata == 'c') || (keydata == 'C'))//trigger C channel relay. { Temporary[2] = 0x0C;// 0x0C is C button key digitalWrite(ledPin、 HIGH);//Turn on led send_data();//send code word Serial.println(".....trigger C channel relay....."); } else if((keydata == 'd') || (keydata == 'D'))//trigger D channel relay. { Temporary[2] = 0x03;// 0x03 is D button key digitalWrite(ledPin、 HIGH);//Turn on led send_data();//send code word Serial.println(".....trigger D channel relay....."); } ... }}Description (Click on the link below)£º433M Wireless transmitter module(Without coding);433M 1 channels relay switch; ¡ïIntroduction for Shenzhen Canton-electronics Trading Co.、Ltd :We specialize in RF Wireless Radio Transmitting Units and Receiving Units、 the product include transmitters with case、 receivers with relay(s)、 transmittng modules and receiving modules、 are widely applied in RC toy、 remote sensing、 telemetry、 fireworks、 industrial control、 home&garden application. ¡ïShipping:Normally shipping is by Airmail from China Post Air Mail or Hong Kong Post Air Mail 、15-60 days shipping time based on different country .Express is available、 shipping time is 2-7 days all over the world、 and telephone number is needed. Please contact us first for extra payment .¡ïBenefitsThe Best Prices. By working with Canton-electronics Ltd、 you can take advantage of the internet business、 cut off the wholesalers cost and other costs、 and import your products directly from the manufacturer at incredible prices.Prompt Delivery. Most units are in stock all the time、 standard units will be completed within 1-3 days if they are sold out、 it is great help for you if your project must be completed before deadline.Prompt Service. Mails will be replied within 24 hours We work 6 days a week.¡ïReturn PolicyAll mails will be replied to within 24 hours except on weekend and holidays.Every item is manufactured under Strict Quality-Assurance Guidelines. If you are dissatisfied for any reason、 please return the product to us、 and we'll refund your money(not including shipping fees).Please ensure that return items are not used.Return items must be Posted within 7 days of receipt.Please inform us via email before posting your return package.¡ïPAYMENT?We accept PayPal only. ?We only ship item to your PayPal verified address. ?Payment must be received within 3 Days from the date of purchase. ?Please leave note in PayPal when making the payment if you have any special request (colors/size).Orders will be processed instantly and dispatched in same day normally、 so we do NOT accept any Email/Message note before or after you place orders. ¡ïImport tax : We will dispatch the item as Electronic Module、 label the total amount on the custom declare invoice . Import duties、 taxes and charges are not included in the item price or shipping charges. These charges are the buyer¡¯s responsibility. Please check with your country¡¯s customs office to determine what these additional costs will be prior to buying.