E32-433T20D Model Overview
The E32-433T20D is a wireless serial port module based on SEMTECH's LoRa solution, operating in the 410-441MHz frequency band with default 433MHz, featuring transparent transmission mode and LoRa spread spectrum technology.
Key Features
- LoRa Spread Spectrum Technology: Ensures long-range communication with enhanced anti-interference capabilities
- Transparent Transmission Mode: Supports seamless data transfer without protocol conversion
- Wide Frequency Range: Operates across 410-441MHz band with default 433MHz setting
- Compact Design: Lightweight module weighing only 6.3±0.1g
- UART Interface: Simple integration with TTL level compatibility
- Industrial-grade Performance: Reliable operation in various environmental conditions
Technical Specifications
- Operating Frequency: 410-441MHz (default 433MHz)
- Transmit Power: 19-20dBm
- Communication Distance: Up to 3.0km in open space
- Interface: UART (TTL level)
- Modulation Technology: LoRa Spread Spectrum
- Transmission Mode: Transparent transmission
- Weight: 6.3±0.1g
- Operating Voltage: Typically 3.3V-5V (compatible with most microcontroller systems)
- Data Rate: Configurable based on application requirements
Application Scenarios
- Industrial IoT: Remote sensor data collection and equipment monitoring
- Smart Agriculture: Field monitoring systems and irrigation control
- Building Automation: HVAC control and energy management systems
- Wireless Metering: Water/gas/electricity meter reading solutions
- Environmental Monitoring: Air quality and weather station networks
- Asset Tracking: Logistics and supply chain management
- Smart City Infrastructure: Street lighting control and waste management systems
Integration Advantages
- Simplified development process with transparent transmission mode
- Easy pairing with microcontrollers through UART interface
- Low power consumption suitable for battery-operated devices
- Robust performance in noisy RF environments
| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency | 410~441 MHz | Default: 433MHz |
| Transmitting power | 19~20 dBm | - |
| Receiving sensitivity | -144~147 dBm | Air data rate: 2.4kbps |
| Air data rate | 2.4k~19.2kbps | - |
| Test distance | 3000 meter | In open and clear air, with maximum power, 5dBi antenna gain, height of 2.5m,air data rate: 2.4kbps |
| Hardware Parameter | Value | Remark |
|---|---|---|
| Size | 21 * 36 mm | |
| Antenna type | SMA-K | Characteristic impedance about 50Ω |
| Communication interface | UART | TTL level |
| Package | In-line | |
| Buffer | 512 bytes buffer |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
|---|---|---|---|---|---|
| Power supply | 2.3 | 5.0 | 5.5 | V | ≥3.3V can guarantee output power |
| Communication level | - | 3.3 | - | V | Risk of burnout with 5V TTL |
| Transmitting current | - | 110 | - | mA | Instantaneous power consumption |
| Receiving current | - | 14 | - | mA | |
| Sleep current | - | 4 | - | μA | software shutdown |
