Technical Specifications and Performance Parameters
Dimensions
The TWS-FS module operates in the 433 MHz ISM band, providing stable wireless communication capabilities. The following are detailed technical specifications and electrical characteristic parameters for engineers to refer to for system design and integration evaluation.
Parameter Name | Symbol | Min Value | Typical Value | Max Value | Unit | |
Operating Frequency (±250KHz) | Vcc | 433.67 | 433.92 | 434.17 | MHz | |
Data Rate | ASK | — | — | 14 | Kbps | |
Transmitter Performance | — | — | — | — | — | |
Peak Input Current (12V DC power supply) | ITP | — | — | 38 | mA | |
Peak Output Power (16.6dBm) | PO | — | 79.43 | — | mW | |
Turn On / Off Time | T ON / T OFF | — | — | 10 | µs | |
Power Supply Voltage Range | VCC | 1.5 | — | 12 | VDC | |
Operating Ambient Temperature | TA | -20 | — | 85 | ℃ | |
Transmit Antenna Output Current (3V, 6dBm) | Vcc | — | 9.6 | — | mA |
Transmitter Module and Receiver Module Compatibility
The TWS-FS transmitter module is designed to work seamlessly with the RWS-434LL receiver module, and their combination ensures excellent wireless communication performance. This pairing provides stable data transmission, achieving an effective communication range of up to 500 meters in open environments, meeting the demands for long-distance transmission in various application scenarios.
Transmit | Receive | Distance | |
TWS-FS | RWS-434LL, RWS-434N, RWS-371F, RWS-371 | 500M |
Pin Function Description and Wiring Guide
Pin Definition Table
Pin | Function Description | |
Pin 1 | GND — Ground terminal, connects to system ground | |
Pin 2 | Data In — Data input terminal, receives modulated signal from MCU | |
Pin 3 | VCC — Positive power supply, provides 1.5~12V DC power | |
Pin 4 | ANT — Antenna output terminal, connects to 433MHz RF antenna |
The module adopts a standard 4-pin interface design with clear pin definitions, facilitating rapid circuit integration for engineers. It is recommended to use a 50Ω impedance matched antenna for optimal transmission performance.
Engineering Tip: To ensure optimal performance, it is recommended to add decoupling capacitors (100nF + 10μF) between VCC and GND, and keep the antenna away from metal objects to prevent signal attenuation.
Application Scope — Industrial and Smart Systems
Industrial Automation Communication Applications
The TWS-FS module is particularly suitable for long-distance wireless control and data feedback applications in industrial automation. In scenarios such as factory production lines, warehouse logistics, and equipment monitoring, the module can provide stable and reliable wireless communication connections, enabling real-time data exchange and remote control functions between devices.
Its high-power output ensures stable communication quality in complex industrial environments, even with obstacles like metal structures and machinery. The low-power consumption design makes it suitable for remote monitoring points where frequent battery replacement is inconvenient, significantly reducing maintenance costs and labor requirements.
Production Line Wireless Control
Achieve remote start/stop control, parameter adjustment, and status monitoring of machinery and equipment, enhancing production efficiency and management flexibility.
Warehouse Logistics Management
Supports wireless communication needs for cargo tracking, inventory checking, and automated handling equipment.
Equipment Data Feedback
Collect operational parameters, temperature, vibration, and other sensor data from machinery to enable predictive maintenance and fault early warning.
Smart Instrument and Telemetry Device Integration
In applications such as smart sensors, environmental monitoring stations, and meteorological observation equipment, the TWS-FS module can be integrated into various smart instruments to achieve long-distance and low-power signal transmission. Its compact design makes it easy to embed into tight instrument casings, and its wide operating temperature range (-20°C ~ +85°C) ensures stable operation in various climatic conditions.
Outdoor Telemetry Applications
- Environmental monitoring station data feedback
- Meteorological observation equipment wireless communication
- Agricultural irrigation system remote control
- Water level/flow monitoring station data transmission
Smart Instrument Integration
- Medical instrument wireless data transmission
- Laboratory equipment remote monitoring
- Energy management system communication
- Building automation control systems
Applications — IoT and Security Systems
IoT Device Communication Architecture
In the Internet of Things (IoT) ecosystem, the TWS-FS module plays a crucial role as a wireless communication bridge. It can serve as a data channel between sensor nodes, smart gateways, and cloud platforms, enabling wide-area wireless network coverage. By deploying multiple TWS-FS modules, a complete IoT communication network can be established, supporting various IoT application scenarios such as smart cities, smart agriculture, and smart buildings.
Its low-power consumption feature is particularly suitable for battery-powered nodes that require long operating times, while the 500-meter transmission distance can effectively reduce the number of base stations, simplifying network architecture and saving deployment costs.
Sensor Nodes
Wireless data upload for various sensors such as environment, temperature, humidity, and air quality.
Smart Gateway
Collects data from multiple sensor nodes, performs protocol conversion and data pre-processing.
Cloud Platform
Data storage, analysis, and visualization for remote monitoring and management.
Security Systems and Remote Control Applications
In security and access control systems, the TWS-FS module provides a reliable wireless communication solution. Whether it's smart door locks, surveillance cameras, intrusion detectors, or emergency alarm systems, the TWS-FS can enable remote control and instant alarm notification functions. Its high stability ensures reliable operation of security systems, and its long-range transmission capability expands the system's coverage.
Security Device Integration
Wireless connection and control of access control systems, surveillance cameras, infrared sensors, and other equipment.
Remote Monitoring Coverage
Achieve wide-area security monitoring networks, supporting multi-point deployment and centralized management.
Emergency Alarm Communication
Instant wireless alarm transmission for emergencies such as fires and intrusions, ensuring rapid security response.