{"product_id":"hc-12-v4-0-si4438-wireless-microcontroller-serial-bluetooth-module-data-transmission-module-with-antenna","title":"HC-12 V4.0 SI4438 Wireless Microcontroller Serial Bluetooth Module Data Transmission Module  with Antenna","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAideepen\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCertification\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNONE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDIY Supplies\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eElectrical\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eData Record\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNo\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDropship\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSupport\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eElectronic\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNo\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eKey Word\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTransmission Module\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaterial\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eOther Metal\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAs  Description\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput Voltage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAs  Description\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSemi-finishedproduct\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSize\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAs  Description\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eStyle\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAs Description\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eHC-12 V4.0 SI4438 Module,As Description\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003esemi_Choice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"background-color:rgb(254, 146, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003e\u003ci\u003eHC-12 V4.0 SI4438 Wireless Microcontroller Serial Bluetooth Module Data Transmission Module  with Antenna\u003cbr\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"283\" src=\"https:\/\/ae01.alicdn.com\/kf\/S210e1527db0245029dd9e727240a1f79E.jpg\" slate-data-type=\"image\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"283\" src=\"https:\/\/ae01.alicdn.com\/kf\/S7e7f291f1b944a0c9d8698174596fd94r.jpg\" slate-data-type=\"image\"\u003e\u003cimg width=\"944\" height=\"283\" src=\"https:\/\/ae01.alicdn.com\/kf\/Scafdef82a7bf48d2a3c92fb03aed3361E.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg width=\"944\" height=\"59\" src=\"https:\/\/ae01.alicdn.com\/kf\/Hee9d13ce747b454abc7211d9ebb8c750K.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003e\u003cbr\u003eFeatures:\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003e1. Long-range wireless transmission, 500bps air baud rate, supports a communication distance of 1000 meters in open areas.\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003e2. Operating frequency range 433.4—483.8MHz, up to 254 communication channels.\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003e3. Maximum 100mW (20dBm) transmit power (8 power levels adjustable).\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003e4. Four operating modes to adapt to different applications.\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003e5. Built-in MCU for communication with external devices via serial port.\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eProduct Introduction: The HC-12 wireless serial communication module is a new generation of multi-channel embedded wireless data transmission module. The wireless operating frequency band is 433.4—483.8MHz, with multiple channels configurable in 400KHz increments, totaling 127 channels. In default mode, the module's maximum transmit power is 100mW (20dBm), 5000bps air baud rate, receive sensitivity -116dBm, and a communication distance of 1000 meters in open areas.\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eThe module uses a stamp-hole packaging method, allowing for surface mount soldering. Measuring 27.4mm × 13.2mm (excluding the spring antenna), it is easily embedded into application systems. The module features a PCB antenna mount ANT1, allowing users to connect an external antenna via coaxial cable, depending on the selected communication channel, for either the 433MHz band (suitable for 433.4MHz-450MHz) or the 470MHz band (suitable for 450MHz-483.8MHz). An internal antenna soldering hole ANT2 facilitates soldering of the spring antenna. Users can select one antenna type according to their requirements.\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eThe module contains an internal MCU, eliminating the need for additional programming. Various pass-through modes allow users to simply transmit and receive serial data, making it convenient to use. The module employs multiple serial port pass-through modes, selectable via AT commands according to user requirements.\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eThe average operating current in idle state for the four modes FU1, FU2, FU3, and FU4 are 3.3mA, 85μA, 16.5mA, and 16.5mA respectively, with a maximum operating current of approximately 120mA (in full-power transmission mode).\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eProduct Specifications:\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eModel: HC-12 SMD V4.0\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eCommunication Interface: UART 3.3V~5V TTL level\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eCommunication Level: 3.3V\/5V level\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eOperating Humidity: 10%~90%\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eRF Chip Solution: SI4438, external 433MHz antenna\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eTransmission Rate: 4~5KB\/s\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eCommunication Distance: 1km\/FU4, half-duplex, 1200~115200bp\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eOperating Voltage: 3.0~5.5V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eCommunication Interface\/Level: UART 3.3\/5V TTL level; Operating frequency band: 433.4~484.0MHz; Total 254 channels; Transmit power (MAX): 100mW (20dBm); Idle current in four modes: FU1: 3.3mA, FU2: 85μA, FU3: 16.5mA, FU4: 16.5mA; Operating current (MAX): 100mA (full power); Operating temperature: -40~+85℃; Reference distance: 1000m; Module size: 27.4×13.2mm; Built-in firmware, self-connecting upon power-on; note that at least two modules are required for interconnection.\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eProduct Applications: Wireless sensors; Community building security; Wireless robot control; Industrial remote control\/telemetry; Automated data acquisition; Container information management; POS system; Wireless gas meter data acquisition; Keyless vehicle entry system; PC wireless networking\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003eProduct List:\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cspan style=\"color:rgb(0, 0, 0);font-size:24px;font-family:arial, helvetica, sans-serif\"\u003e1X Module; 1X Spring Antenna\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H143187c7e30e46d09a6799d1e8b8940de.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S9c3ed1e14c2042189ea310b3312ea87aj.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sfb1454d27da84498b245c1f7588a8a08U.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S2746270f3f444fc681ef274f88bfbf995.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S932dc06984c34f36b7ad0ce2bc4f6c034.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/See877d1dd836464f8cf03d847ab334607.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S176787a8ae034f62a481bb1acfc595b3d.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S2b11e1cfe6fd4afebbb64c9b45fb7fb3C.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S41a0b0ed7f204969b4d26baaa203afe6X.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sb53b6e10402f4b57b65a156ff7bae8abt.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S14b8fec5dea2451e8d4442b72ee5ef19S.jpg\" slate-data-type=\"image\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Yoeruyo","offers":[{"title":"A","offer_id":55377118265643,"sku":"14:350686#A","price":10.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S9c3ed1e14c2042189ea310b3312ea87aj.webp?v=1788332821","url":"https:\/\/yoeruyo.com\/products\/hc-12-v4-0-si4438-wireless-microcontroller-serial-bluetooth-module-data-transmission-module-with-antenna","provider":"Yoeruyo","version":"1.0","type":"link"}