{"product_id":"hc-12-433mhz-long-range-wireless-serial-module-with-spring-antenna","title":"HC-12 433MHz Long Range Wireless Serial Module with Spring Antenna","description":"\u003ch2\u003eHC-12 433MHz Long Range Wireless Serial Module\u003c\/h2\u003e\u003cp\u003eThe HC-12 is a powerful 433MHz wireless serial communication module capable of transmitting data over distances up to 1800 meters in open air. With a simple UART interface and AT command configuration, it's a drop-in replacement for wired serial connections in Arduino, ESP32, and microcontroller projects.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e433MHz ISM band wireless communication\u003c\/li\u003e\n\u003cli\u003eRange: up to 1800m (open air, FU1 mode)\u003c\/li\u003e\n\u003cli\u003eSimple UART serial interface (TX\/RX)\u003c\/li\u003e\n\u003cli\u003eAT command configuration for baud rate, channel, and power\u003c\/li\u003e\n\u003cli\u003e20 selectable channels (433.4MHz – 473.0MHz)\u003c\/li\u003e\n\u003cli\u003eIncludes spring coil antenna for extended range\u003c\/li\u003e\n\u003cli\u003eGold IPEX\/U.FL connector for external antenna\u003c\/li\u003e\n\u003cli\u003eBlue PCB with compact SMD design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFrequency: 433MHz\u003c\/li\u003e\n\u003cli\u003eRange: Up to 1800m (open air)\u003c\/li\u003e\n\u003cli\u003eInterface: UART (TTL 3.3V\/5V compatible)\u003c\/li\u003e\n\u003cli\u003eBaud Rate: 1200 – 115200 bps\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: 3.2V – 5.5V\u003c\/li\u003e\n\u003cli\u003eTransmit Power: -1dBm – 20dBm (adjustable)\u003c\/li\u003e\n\u003cli\u003eChannels: 20\u003c\/li\u003e\n\u003cli\u003eAntenna: Spring coil (included)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino UNO, Nano, Mega\u003c\/li\u003e\n\u003cli\u003eESP8266 \/ ESP32\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi\u003c\/li\u003e\n\u003cli\u003eAny UART-capable microcontroller\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lahore Store","offers":[{"title":"Default Title","offer_id":55832844599369,"sku":null,"price":1100.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/9090\/2089\/files\/WhatsApp_Image_2026-07-20_at_5.37.09_PM_1.jpg?v=1784560207","url":"https:\/\/lahorestore.pk\/products\/hc-12-433mhz-long-range-wireless-serial-module-with-spring-antenna","provider":"Lahore Store","version":"1.0","type":"link"}