HC-11 433MHz Long Distance Wireless RF Transceiver Module

HC-11 433MHz RF Transceiver Module OverviewThe HC-11 433MHz RF transceiver module provides reliable, low-power wireless serial communication for embedded systems, IoT projects, and remote monitoring applications. Designed to extend communication range up to 1000 meters in open space, the HC-11 is a cost-effective choice for projects that need stable, UART-based wireless links without relying on Wi-Fi or cellular networks.What is the HC-11 433MHz Module?The HC-11 is a compact serial RF transceiver that operates on the 433 MHz ISM band. It uses a UART TTL interface for simple integration with microcontrollers and supports multiple transmission modes to balance speed, range, and power consumption. The module is suitable for both hobbyist prototypes and industrial deployments.Key features433 MHz ISM band operation optimized for long-range linksTransmission range up to 1000 meters line of sightUART TTL serial interface, 1200 to 115200 bpsMultiple operating modes: FU1, FU2, FU3, and Normal for tuning performanceWide supply voltage range: 3.2 V to 5.5 V for flexible power optionsPCB or external antenna support for extended coverageCompact module size for easy integration (27 mm x 13.5 mm)Compatible with Arduino, STM32, PIC and other microcontrollersTechnical specificationsFrequency: 433 MHzTransmission Range: Up to 1000 meters (line of sight)Power Supply Voltage: 3.2 V to 5.5 VInterface: UART TTLBaud Rate: 1200 to 115200 bpsOperating Modes: FU1, FU2, FU3, NormalAntenna: PCB or external antennaModule Dimensions: 27 mm x 13.5 mmTypical applicationsRemote control systems and wireless relaysSensor nodes and remote data loggingSmart agriculture automation such as irrigation controlHome automation and environmental sensing networksIndustrial equipment monitoring and telemetryEducational projects, prototyping and roboticsHow to connect and use the HC-11 with microcontrollersGetting started with the HC-11 is straightforward. Use the UART interface to transmit and receive data from your microcontroller. Basic connection steps:Power the module with a stable supply between 3.2 V and 5.5 V.Connect the module TX to the microcontroller RX and module RX to the microcontroller TX. Ensure a common ground between devices.Set the serial baud rate between 1200 and 115200 bps to match your controller settings.Use the module operating modes (FU1, FU2, FU3, Normal) to optimize for range or throughput based on your application needs.Many users configure settings via serial commands in setup mode or by using a configuration pin if available on the breakout. Always consult wiring diagrams and verify voltages before powering the module.Performance and comparisonsThe HC-11 delivers an excellent balance of range, power efficiency and simplicity. Compared to other 433 MHz transceivers, it is easier to integrate because of the UART TTL interface while still offering strong line-of-sight range for remote control and telemetry. For ultra-long-distance links or advanced features you may consider other modules, but the HC-11 is ideal for moderate to long-range deployments that require reliable and low-cost wireless communication.Benefits for developers and system integratorsStable signal strength across large distances without cellular or Wi-Fi dependencyFlexible operating modes for performance tuning and interference managementLow power consumption suitable for battery-powered sensor nodesEasy integration with common microcontroller platforms such as Arduino and STM32Durable and cost-effective solution for long-term projects and production systemsAvailability and orderingThe HC-11 433MHz module is available at Colgroad, a trusted supplier of electronic components in Pakistan. Order online for delivery across Islamabad and the rest of Pakistan, or contact support for bulk purchase options and technical assistance.NoteImages are for illustration purposes only. Categories: Boards, Modules and Accessories, Wireless Communication Tags: bluetooth module, Bluetooth V2.0, Low Power, Remote Control, UART Interface, Wireless Communication College Road Electronics4.85 (317 Reviews)