1. Введение
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. Особенности
- 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.
- Рабочий объемtagдиапазон: от 2.6 В до 3.3 В.
- 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. Технические характеристики
Figure 2: Main technical parameters of the E49-400T20D module.
| Параметр | Описание |
|---|---|
| Размер продукта | 36мм * 21мм |
| Антенна | СМА |
| Рабочая частота | 410~510МГц |
| Максимальная мощность Tx (дБм) | 20.0dBm |
| Расстояние отсчета | 2.5км |
| Рабочий объемtage | 2.6В~5.5В |
| Интерфейс связи | УАПП |
| Чувствительность приема | -116~-117kbps |
| Сонный ток | 0.7 мкА |
Figure 3: Dimensions of the E49-400T20D module (36mm x 21mm).
4. Настройка
To set up the E49-400T20D wireless module, follow these general guidelines:
- Источник питания: Connect the module to a stable power supply within the 2.6V to 3.3V range. Ensure correct polarity to prevent damage.
- Антенное соединение: Attach a compatible 433MHz/470MHz SMA antenna to the module's SMA interface. A properly connected antenna is crucial for optimal performance.
- UART-соединение: 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.
- Конфигурация: Refer to the module's detailed datasheet for specific register configurations, including setting the desired operating mode, transmission power, and data rate.
5. Режимы работы
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. Техническое обслуживание
To ensure the longevity and optimal performance of your E49-400T20D module, adhere to the following maintenance guidelines:
- Условия окружающей среды: 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.
- Умение обращаться: Обращайтесь с модулем осторожно, чтобы предотвратить механические повреждения. Избегайте статического разряда, соблюдая соответствующие меры предосторожности при работе с модулем.
- Уборка: If necessary, gently clean the module's exterior with a dry, soft cloth. Do not use liquid cleaners or solvents.
- Уход за антенной: 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. Поиск Неисправностей
Если у вас возникли проблемы с модулем E49-400T20D, рассмотрите следующие шаги по устранению неполадок:
- Нет связи:
- Проверьте объем источника питанияtagе и полярность.
- 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:
- Убедитесь, что антенна надежно подключена и не повреждена.
- 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.
- Модуль не отвечает:
- Perform a power cycle (turn off and on) to reset the module.
- Перепроверьте все соединения проводов.
8. Приложения
The EBYTE E49-400T20D module is versatile and suitable for a wide array of IoT and industrial applications, including but not limited to:
- Носимые устройства
- Умный дом и промышленные датчики
- Security systems and positioning systems
- Wireless remote control and unmanned drones
- Wireless game remote controls
- Товары для здравоохранения
- Wireless voice communication and wireless headsets
- Применение в автомобильной промышленности
Figure 6: Various IoT application scenarios for EBYTE products, including smart home, remote control, access control, and security systems.
9. Гарантия и поддержка
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.
Производитель: Chengdu Ebyte Electronic Technology Co. Ltd.
Webсайт: www.cdebyte.com
Представитель ЕС: evalmaster Consulting GmbH
Figure 7: Product packaging displaying manufacturer and EU representative information.
