1. Introducció
The EBYTE E49-400T20D is an ultra-high cost-effective wireless module designed for reliable and long-range data transmission. It operates in the 410-510MHz frequency band, offering a maximum transmit power of 20dBm (100mW) and a communication distance of up to 2.5km. This module is suitable for a wide range of industrial-grade applications, ensuring robust performance and consistency.
Figure 1: EBYTE E49-400T20D Wireless Module with SMA antenna interface.
2. Característiques
- Measured communication distance up to 2.5km.
- Maximum transmit power of 100mW (20dBm), software adjustable at multiple levels.
- Utilizes the global license-free ISM 433MHz frequency band.
- Data transmission rate: 1.2Kbps to 200Kbps.
- Low power consumption mode, ideal for battery-powered applications.
- GFSK modulation for reliable data transfer.
- Vol. OperatiutagRang e: de 2.6 V a 3.3 V.
- Industrial-grade standard design for long-term use in temperatures from -40°C to 85°C.
- SMA antenna interface for easy connection.
- Data encryption function for enhanced security and reduced interference.
3. Especificacions
Figure 2: Main technical parameters of the E49-400T20D module.
| Paràmetre | Descripció |
|---|---|
| Mida del producte | 36 mm * 21 mm |
| Antena | SMA |
| Freqüència de treball | 410~510MHz |
| Potència de Tx màxima (dBm) | 20.0dBm |
| Distància de referència | 2.5 km |
| Vol. Operatiutage | 2.6 V ~ 5.5 V |
| Interfície de comunicació | UART |
| Sensibilitat de recepció | -116~-117kbps |
| Corrent del son | 0.7 µA |
Figure 3: Dimensions of the E49-400T20D module (36mm x 21mm).
4. Configuració
To set up the E49-400T20D wireless module, follow these general guidelines:
- Font d'alimentació: Connect the module to a stable power supply within the 2.6V to 3.3V range. Ensure correct polarity to prevent damage.
- Connexió d'antena: Attach a compatible 433MHz/470MHz SMA antenna to the module's SMA interface. A properly connected antenna is crucial for optimal performance.
- Connexió UART: Connect the module's UART pins (TX, RX, GND) to your microcontroller or host device. Ensure the baud rate and other serial communication parameters are correctly configured on both ends.
- Configuració: Refer to the module's detailed datasheet for specific register configurations, including setting the desired operating mode, transmission power, and data rate.
5. Modes de funcionament
The E49-400T20D module features four distinct operating modes, each optimized for different application scenarios. These modes allow for flexibility in balancing power consumption, transmission speed, and range. Users can configure the module to select the most suitable mode for their specific needs.
The module supports configurable air data speeds, ranging from 1.2Kbps to 200Kbps. Higher air data speeds result in faster data transmission and shorter transmission delays, while lower speeds can achieve longer transmission distances.
Figure 4: Illustration of configurable air data speeds (1.2kbps, 2.4kbps, 200kbps).
6. Manteniment
To ensure the longevity and optimal performance of your E49-400T20D module, adhere to the following maintenance guidelines:
- Condicions ambientals: Operate the module within its specified industrial-grade temperature range of -40°C to 85°C. Avoid exposure to extreme temperatures, high humidity, or corrosive environments.
- Manipulació: Manipuleu el mòdul amb cura per evitar danys físics. Eviteu la descàrrega estàtica prenent les precaucions ESD adequades durant la manipulació.
- Neteja: Si cal, netegeu suaument l'exterior del mòdul amb un drap sec i suau. No utilitzeu netejadors líquids ni dissolvents.
- Cura de l'antena: Ensure the antenna connection is secure and the antenna itself is not damaged. A damaged antenna can significantly reduce performance.
Figure 5: The module is designed for long-term use in temperatures from -40°C to 85°C.
7. Solució De Problemes
Si teniu problemes amb el mòdul E49-400T20D, tingueu en compte els passos següents per resoldre problemes:
- Sense comunicació:
- Comproveu la font d'alimentació voltage i polaritat.
- Check UART connections (TX to RX, RX to TX) and ensure correct baud rate settings.
- Confirm that the module is in an active operating mode and not in a low-power sleep state.
- Poor Range or Signal Strength:
- Ensure the antenna is securely connected and undamaged.
- Check for obstructions between modules (e.g., walls, metal objects).
- Verify that the transmit power is set to the desired level (e.g., 20dBm for maximum range).
- Consider environmental interference from other RF devices.
- El mòdul no respon:
- Perform a power cycle (turn off and on) to reset the module.
- Recheck all wiring connections.
8. Aplicacions
The EBYTE E49-400T20D module is versatile and suitable for a wide array of IoT and industrial applications, including but not limited to:
- Dispositius portàtils
- Sensors industrials i domèstics intel·ligents
- Security systems and positioning systems
- Wireless remote control and unmanned drones
- Wireless game remote controls
- Productes sanitaris
- Wireless voice communication and wireless headsets
- Aplicacions de la indústria de l'automoció
Figure 6: Various IoT application scenarios for EBYTE products, including smart home, remote control, access control, and security systems.
9. Garantia i Suport
For warranty information, technical support, or further inquiries regarding the EBYTE E49-400T20D module, please contact the manufacturer directly. EBYTE products undergo rigorous testing to ensure industrial reliability and batch consistency.
Fabricant: Chengdu Ebyte Electronic Technology Co. Ltd.
Weblloc: www.cdebyte.com
Representant de la UE: evalmaster Consulting GmbH
Figure 7: Product packaging displaying manufacturer and EU representative information.
