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 Parameter | Technical Specification |
|---|---|
| Model Number | E32-433T20D |
| Core Chipset | Semtech SX1278 LoRa |
| Frequency Band | 410 - 441 MHz (Default 433MHz) |
| Transmit Power | 19 - 20 dBm (approx. 100mW) |
| Range (Open Area) | 3.0 km (3000 meters) |
| Operating Voltage | 2.3V - 5.5V DC (Typ. 5.0V) |
| Interface Type | UART (TTL Level) |
Download Manual
E32-433T20D Mannual
3D files
RF_setting_E32
XCOM
PCB
DEMO
Ebyte Company Profile
E32-CE Certification
E32-FCC Certification
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
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
Application Scenarios
LoRa Long-Range Wireless Communication
Development engineer Renzo Mischianti completed the LoRa Long-Range Wireless Communication project based on the EBYTE E32-TTL-100 module, and completely open-sourced it on the tech platform Hackster.io. This practical project successfully verified long-range LoRa wireless communication, custom open-source driver library implementation, transparent and fixed transmission modes, dynamic configuration parameters, and AUX-controlled wake-on-radio functionality for Arduino, ESP32, and ESP8266 microcontrollers, where you can view the original test process and technical documentation.
- 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
Note: Case studies on this page are sourced from open‑source technical communities, only to show real‑world product performance in development scenarios. Copyright belongs to original authors. This does not imply commercial endorsement of our company or products. Contact us for removal for any copyright issues. We offer a free‑product sponsorship program to help developers advance their projects.
| 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 |
