Product Features & Key Specifications
Ultra-High Sensitivity
Receiving sensitivity up to -117dBm, ensuring stable long-range reception
Dual Modulation Support
Fully supports ASK and OOK modulation methods, high application flexibility
Wide Voltage Range
Operating voltage 2.0 – 5.5 V, compatible with various power systems
Flexible Data Rate
Supports 2.5 kbps / 7 kbps dual-rate mode
Product Dimensions
43.5 x 10.03 x 4.5 mm (L x W x H)
Complete Technical Parameters Table
Parameter Item | Min | Typical | Max | Unit | Test Condition | |
Operating Frequency | 434.03 | 433.07 | — | MHz | Standard Condition | |
Receiving Sensitivity | — | -117 | — | dBm | 2500 bps | |
Data Transfer Rate (Speed 1) | 20 | 2500 | — | bps | Speed 1 | |
Data Transfer Rate (Speed 2) | 20 | 7500 | — | bps | Speed 2 | |
Power Supply Voltage VDD | 2.0 | — | 5.5 | V | DC | |
Receiving Current | — | 5.6 | — | mA | 5V | |
Data Startup Time | — | 16 | — | ms | First Reception | |
Operating Temperature Range | -20 | — | +80 | — | Ambient Temperature |
Pin Description and Wiring Guide
Comprehensive Pin Definition
The RWS-434LL module features an 8-pin design, providing complete power, data output, and RF connection functionalities. Correct wiring configuration is crucial for ensuring stable module operation; please connect strictly according to the pin definitions below.
Pin | Name | I/O | Description | |
1 | GND | IN | Power Ground | |
2 | DATA | OUT | For the first time, the RF needs to transmit 16ms long time to output DATA normally. If the stop time does not exceed 100mS, it can be received normally. | |
3 | RSSI | OUT | RSSI is a metric that evaluates the strength of the wireless signal. | |
4 | VDD | Power Supply 2~5.5V | ||
5 | VDD | Power Supply 2~5.5V | ||
6 | GND | IN | RF Ground | |
7 | GND | IN | RF Ground | |
8 | ANT | IN | Antenna |
Wiring Precautions
- Ensure power supply voltage is within specifications
- DATA pin requires 16ms initial output for normal operation
- RF GND and Power GND must be correctly distinguished
- Antenna port requires appropriate impedance matching
- Decoupling capacitors are recommended for stable power supply
Typical Application Circuit
In practical applications, it is recommended to connect a 100nF ceramic capacitor and a 10μF electrolytic capacitor between the VDD pin and GND to ensure power stability. The DATA output can be directly connected to a microcontroller's digital input pin, and the RSSI output can be used to monitor the quality of the received signal.
Application Scope | Industrial Control and Consumer Electronics
The RWS-434LL module is widely used in industrial automation and consumer electronics due to its high sensitivity and stable performance.
Below are the main application scenarios and practical cases.
Wireless Remote Control Receiver Module
Applied in devices such as garage doors, electric curtains, and remote switches, providing reliable remote control signal reception.
Smart Home Appliance Control Receiver
Integrated into smart home systems, enabling remote control and automated management, enhancing user convenience.
Industrial Automation RF Receiver
Used for production line control, equipment monitoring, and data acquisition, ensuring stable communication in industrial environments.
Wireless Sensor Data Receiver
In applications such as environmental monitoring, weather stations, and agricultural sensing, the RWS-434LL can stably receive wireless data from various sensors, maintaining excellent reception performance even in complex outdoor environments.
RF Data Monitoring Station
As a receiver module for central monitoring stations, it can simultaneously manage data transmission from multiple wireless nodes, suitable for scenarios such as warehouse management, security systems, and energy monitoring.
Applications | IoT and Embedded Systems Integration
In the fields of IoT and embedded systems, RWS-434LL offers a low-power, highly reliable wireless reception solution, perfectly adapting to the needs of modern smart applications.
IoT Ecosystem Integration
The RWS-434LL can be easily integrated into various IoT platforms and cloud systems, supporting edge computing and data pre-processing to achieve intelligent data collection and analysis. Its low-power characteristics are particularly suitable for wireless node applications requiring long-term operation.
IoT Wireless Receiver Node
Acts as a data receiving node in IoT networks, supporting multi-point to one-point data aggregation architecture to build flexible wireless sensor networks.
Warehouse Logistics Sensor Reception
Applied in smart warehouse management systems, it instantly receives sensor data such as cargo location, temperature, and humidity, enhancing logistics efficiency and cargo tracking capabilities.
Smart Monitoring Equipment Receiver
Integrated into security monitoring systems, it receives alarms and status information from various wireless sensors, achieving comprehensive security protection.
Low-Power Data Collection Module
With a low receiving current of only 5.6mA, it is particularly suitable for battery-powered remote data collection applications, extending system operating time.
Embedded RF Communication System
Provides a complete embedded wireless communication solution that can be quickly integrated into various microcontroller systems, shortening product development cycles.