{"product_id":"si4438-wireless-serial-communication-module-hc-12-v4-0-with-1000m-range-433-4-483-8mhz-rf-module-for-industrial-automation","title":"SI4438 Wireless Serial Communication Module HC-12 V4 0 1000m Range","description":"\u003cp\u003eDiscover the SI4438 Wireless Serial Communication Module HC-12 V4 0 1000m Range — a standout decor pick featuring wireless, easy to use design for dependable, everyday performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003eBrand Name: Aideepen\u003c\/p\u003e\u003cp\u003eCertification: NONE\u003c\/p\u003e\u003cp\u003eDIY Supplies: Electrical\u003c\/p\u003e\u003cp\u003eData Record: No\u003c\/p\u003e\u003cp\u003eElectronic: No\u003c\/p\u003e\u003cp\u003eMaterial: Plastic\u003c\/p\u003e\u003cp\u003eModel Number: Communication Module\u003c\/p\u003e\u003cp\u003eOutput Voltage: Communication Module\u003c\/p\u003e\u003cp\u003eSemi-finishedproduct: No\u003c\/p\u003e\u003cp\u003eSize: Communication Module\u003c\/p\u003e\u003cp\u003eStyle: Communication Module\u003c\/p\u003e\u003cp\u003eType: Communication Module\u003c\/p\u003e\u003cp\u003eFeatures:\u003c\/p\u003e\u003cp\u003e1. Long-range wireless transmission with an air-to-air baud rate of 500 bps and a communication range of up to 1,000 meters in open areas\u003c\/p\u003e\u003cp\u003e2. Operating frequency range of 433.4–483.8 MHz, with up to 254 communication channels\u003c\/p\u003e\u003cp\u003e3. Maximum transmit power of 100 mW (20 dBm) (8 power levels available)\u003c\/p\u003e\u003cp\u003e4. Four operating modes to suit various application scenarios\u003c\/p\u003e\u003cp\u003e5. Built-in MCU for communication with external devices via serial port\u003c\/p\u003e\u003cp\u003eProduct Introduction\u003c\/p\u003e\u003cp\u003eThe HC-12 wireless serial communication module is a new-generation, multi-channel embedded wireless data transmission module. It operates in the 433.4–483.8 MHz frequency band, supports multiple channels with a 400 kHz step size, and offers a total of 127 channels. In default mode, the module has a\u003c\/p\u003e\u003cp\u003emaximum transmit power of 100 mW (20 dBm), an air data rate of 5000 bps, a receive sensitivity of -116 dBm, and a communication range of 1000\u003c\/p\u003e\u003cp\u003emeters in open terrain.\u003c\/p\u003e\u003cp\u003eThe module uses a through-hole package and supports surface-mount soldering. With dimensions of 27.4 mm × 13.2 mm (excluding the spring antenna), it is easy for customers to integrate into application systems. The module features a PCB antenna socket (ANT1) that allows users to connect an external antenna via coaxial cable to the 433 MHz band (compatible with 433.4 MHz–450 MHz) or the 470 MHz band (compatible with 450 MHz–483.8 MHz), depending on the selected communication channel. The module also includes an antenna solder pad (ANT2)\u003c\/p\u003e\u003cp\u003efor users to solder a spring antenna. Users can select one of these antenna options based on their application requirements.\u003c\/p\u003e\u003cp\u003eThe module contains an MCU, eliminating the need for additional programming. Various pass-through modes simply transmit and receive serial data, making it easy to use. The module supports multiple serial pass-through modes, which users can select using AT commands according to their application requirements.\u003c\/p\u003e\u003cp\u003eThe average operating currents in idle mode for the four modes (FU1, FU2, FU3, and FU4) are 3.3mA, 85μA, 16.5mA,\u003c\/p\u003e\u003cp\u003eand 16.5mA, respectively, with a maximum operating current of approximately 120mA (during full-power transmission).\u003c\/p\u003e\u003cp\u003eProduct Specifications:\u003c\/p\u003e\u003cp\u003eModel: HC-12 SMD Version V4.0\u003c\/p\u003e\u003cp\u003eCommunication Interface: UART 3.3V–5V TTL Level\u003c\/p\u003e\u003cp\u003eCommunication Level: 3.3V\/5V Level\u003c\/p\u003e\u003cp\u003eOperating Humidity: 10%–90%\u003c\/p\u003e\u003cp\u003eRF Chip Solution: SI4438, with external 433MHz antenna\u003c\/p\u003e\u003cp\u003eTransmission Rate: 4–5 KB\/s\u003c\/p\u003e\u003cp\u003eCommunication Range: 1 km (FU4), half-duplex, 1200–115,200 bps\u003c\/p\u003e\u003cp\u003eOperating Voltage: 3.0–5.5 V\u003c\/p\u003e\u003cp\u003eCommunication Interface\/Level: UART 3.3\/5 V TTL level\u003c\/p\u003e\u003cp\u003eOperating Frequency Band: 433.4–484.0 MHz, 254 channels total\u003c\/p\u003e\u003cp\u003eTransmit Power (MAX): 100 mW (20dBm)\u003c\/p\u003e\u003cp\u003eIdle current in four modes: FU1: 3.3mA, FU2: 85μA, FU3: 16.5mA, FU4: 16.5mA,\u003c\/p\u003e\u003cp\u003eOperating current (MAX): 100mA (full power)\u003c\/p\u003e\u003cp\u003eOperating temperature: -40~+85°C\u003c\/p\u003e\u003cp\u003eReference distance: 1000m\u003c\/p\u003e\u003cp\u003eModule dimensions: 27.4×13.2\u003c\/p\u003e\u003cp\u003eBuilt-in firmware, auto-pairing upon power-up. Note: At least two modules are required for interconnection.\u003c\/p\u003e\u003cp\u003eProduct Applications:\u003c\/p\u003e\u003cp\u003eWireless sensors\u003c\/p\u003e\u003cp\u003eResidential and commercial building security\u003c\/p\u003e\u003cp\u003eWireless robot control\u003c\/p\u003e\u003cp\u003eIndustrial remote control and telemetry\u003c\/p\u003e\u003cp\u003eAutomated data acquisition\u003c\/p\u003e\u003cp\u003eContainer information management\u003c\/p\u003e\u003cp\u003ePOS systems\u003c\/p\u003e\u003cp\u003eWireless data collection for gas meters\u003c\/p\u003e\u003cp\u003eKeyless entry systems for vehicles\u003c\/p\u003e\u003cp\u003eWireless PC networking\u003c\/p\u003e\u003cp\u003eProduct List:\u003c\/p\u003e\u003cp\u003e1x Module\u003c\/p\u003e\u003cp\u003e1x Spring Antenna\u003c\/p\u003e\u003ch3\u003eOptions\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Red\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eQ: What is the SI4438 Wireless Serial Communication Module HC-12 V4 0?\u003c\/h4\u003e\u003cp\u003eA: The SI4438 Wireless Serial Communication Module HC-12 V4 0 is a quality decor pick. Long-range wireless transmission with an air-to-air baud rate of 500 bps and a communication range of up to 1,000 meters in open areas 2.\u003c\/p\u003e\u003ch4\u003eQ: What is the SI4438 Wireless Serial Communication Module HC-12 V4 0 made of?\u003c\/h4\u003e\u003cp\u003eA: The SI4438 Wireless Serial Communication Module HC-12 V4 0 is made from Plastic Model Number, measuring Communication Module Style.\u003c\/p\u003e\u003ch4\u003eQ: Why choose the SI4438 Wireless Serial Communication Module HC-12 V4 0?\u003c\/h4\u003e\u003cp\u003eA: The SI4438 Wireless Serial Communication Module HC-12 V4 0 stands out in our decor range — Operating frequency range of 433.4–483.8 MHz, with up to 254 communication channels 3.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the SI4438 Wireless Serial Communication Module HC-12 V4 0?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The SI4438 Wireless Serial Communication Module HC-12 V4 0 is a quality decor pick. Long-range wireless transmission with an air-to-air baud rate of 500 bps and a communication range of up to 1,000 meters in open areas 2.\"}}, {\"@type\": \"Question\", \"name\": \"What is the SI4438 Wireless Serial Communication Module HC-12 V4 0 made of?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The SI4438 Wireless Serial Communication Module HC-12 V4 0 is made from Plastic Model Number, measuring Communication Module Style.\"}}, {\"@type\": \"Question\", \"name\": \"Why choose the SI4438 Wireless Serial Communication Module HC-12 V4 0?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The SI4438 Wireless Serial Communication Module HC-12 V4 0 stands out in our decor range — Operating frequency range of 433.4–483.8 MHz, with up to 254 communication channels 3.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Red","offer_id":47766699409513,"sku":"14:350686#Red","price":11.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Sc6302d8c5b884a019e86eccda879ea5fG.webp?v=1783447949","url":"https:\/\/oasis-select.com\/products\/si4438-wireless-serial-communication-module-hc-12-v4-0-with-1000m-range-433-4-483-8mhz-rf-module-for-industrial-automation","provider":"Oasis Select","version":"1.0","type":"link"}