1. ആമുഖം
The EBYTE E32-900T20D is a LoRa wireless module designed for long-range, low-power data transmission. It operates in the 868MHz and 915MHz frequency bands, offering robust anti-interference capabilities and extended communication distances up to 5.5 kilometers. This module integrates a serial port interface, making it suitable for various embedded applications requiring reliable wireless connectivity.

ചിത്രം 1: മുൻഭാഗം view of the EBYTE E32-900T20D LoRa Wireless Module.
2 പ്രധാന സവിശേഷതകൾ
- LoRa Spread Spectrum Technology: Utilizes LoRa Direct Sequence Spread Spectrum for enhanced communication range and interference resistance.
- Dual Frequency Bands: Supports both 868MHz and 915MHz operation.
- High Transmit Power: Features a 20dBm (100mW) transmit power output.
- Long Communication Distance: Capable of transmitting data up to 5.5 kilometers in optimal conditions.
- സീരിയൽ പോർട്ട് ഇന്റർഫേസ്: Easy integration with microcontrollers via UART (TX, RX).
- ഒന്നിലധികം പ്രവർത്തന രീതികൾ: Offers Transmission, Wake-up, Power Saving, and Deep Sleep modes for flexible power management.

Figure 2: Illustration of LoRa spread spectrum communication benefits.
3 സ്പെസിഫിക്കേഷനുകൾ
| പരാമീറ്റർ | മൂല്യം |
|---|---|
| മോഡൽ നമ്പർ | E32-900T20D |
| ഫ്രീക്വൻസി ബാൻഡുകൾ | 868MHz / 915MHz |
| പവർ ട്രാൻസ്മിറ്റ് ചെയ്യുക | 20dBm (100mW) |
| ആശയവിനിമയ ദൂരം | 5.5 കിലോമീറ്റർ വരെ (കാഴ്ചയുടെ രേഖ) |
| ഇൻ്റർഫേസ് | UART (Serial Port) |
| അളവുകൾ (L x W) | 36 മിമി x 21 മിമി |
| നിർമ്മാതാവ് | EBYTE |
| പാക്കേജ് അളവുകൾ | 2.4 x 2.01 x 0.47 ഇഞ്ച് |
| ഭാരം | 0.71 ഔൺസ് |

Figure 3: E32-900T20D module with physical dimensions.
4. Pin Definitions and Hardware Interface
The E32-900T20D module features a standard pin header for integration. For detailed pinout information, including specific functions for VCC, GND, TX, RX, AUX, M0, and M1 pins, please refer to the official EBYTE E32-900T20D datasheet available on the manufacturer's website. Proper connection of these pins to your microcontroller or host device is crucial for correct operation.
- വിസിസി: പവർ സപ്ലൈ ഇൻപുട്ട്.
- GND: ഗ്രൗണ്ട് കണക്ഷൻ.
- TX: Transmit data output (connects to RX of host).
- RX: Receive data input (connects to TX of host).
- ഓക്സ്: Auxiliary pin, often used for status indication (e.g., data ready).
- M0, M1: Mode selection pins, used to configure the module's operating mode.
5. സജ്ജീകരണവും കണക്ഷനും
- വൈദ്യുതി വിതരണം: Connect the VCC pin to a stable power source within the module's specified voltage range. Connect GND to the system ground.
- സീരിയൽ കമ്മ്യൂണിക്കേഷൻ: Connect the module's TX pin to the RX pin of your microcontroller or host device, and the module's RX pin to the TX pin of your host device. Ensure both devices share a common ground.
- ആന്റിന കണക്ഷൻ: Securely attach a compatible 868MHz or 915MHz antenna to the module's antenna connector. An improperly connected or missing antenna can damage the module.
- മോഡ് തിരഞ്ഞെടുക്കൽ: Use the M0 and M1 pins to set the desired operating mode. Refer to the datasheet for specific pin configurations for each mode.
- സോഫ്റ്റ്വെയർ കോൺഫിഗറേഷൻ: Configure your host device's UART settings (baud rate, parity, stop bits) to match the module's default or configured settings. The module can often be configured via AT commands through the serial interface.
6 ഓപ്പറേറ്റിംഗ് മോഡുകൾ
The E32-900T20D module supports four distinct operating modes, each optimized for different application requirements:
- ട്രാൻസ്മിഷൻ മോഡ്: This is the standard transparent transmission mode, commonly used for continuous data exchange.
- Wake-up Mode: Designed for low-power applications, this mode allows the transmitter to wake up the receiver by automatically adding a wake-up code before data transmission.
- പവർ സേവിംഗ് മോഡ്: In this receiver-only mode, the module consumes less power. It can receive data but cannot initiate transmissions.
- ഡീപ് സ്ലീപ്പ് മോഡ്: The lowest power consumption mode, where the module's overall power consumption is significantly reduced (e.g., to 2uA), ideal for battery-powered devices requiring minimal activity.

ചിത്രം 4: ഓവർview of the four working modes.
7. ആപ്ലിക്കേഷൻ സാഹചര്യങ്ങൾ
The E32-900T20D LoRa module's long-range and low-power characteristics make it suitable for a wide range of Internet of Things (IoT) and industrial applications:
- Smart Agriculture: Environmental monitoring, irrigation control, livestock tracking.
- വയർലെസ് റിമോട്ട് കൺട്രോൾ: Industrial equipment control, smart home devices.
- Industrial Scene: Sensor data collection, asset tracking, process automation.
- സ്മാർട്ട് വെയറബിളുകൾ: Low-power communication for wearable devices.

ചിത്രം 5: ഉദാamples of application scenarios for the E32-900T20D module.
8. പ്രശ്നപരിഹാരം
If you encounter issues with your E32-900T20D module, consider the following troubleshooting steps:
- ആശയവിനിമയം ഇല്ല:
- വൈദ്യുതി വിതരണം വോളിയം പരിശോധിക്കുകtage and ground connections.
- Check serial port wiring (TX to RX, RX to TX).
- Ensure UART baud rate, data bits, parity, and stop bits match on both devices.
- Confirm M0 and M1 pins are set correctly for the desired operating mode.
- Short Communication Range:
- Ensure the antenna is securely connected and is appropriate for the operating frequency (868MHz or 915MHz).
- Check for physical obstructions between modules.
- Verify transmit power settings (if configurable).
- മൊഡ്യൂൾ പ്രതികരിക്കുന്നില്ല:
- Perform a power cycle.
- Check for any short circuits or incorrect wiring that might damage the module.
For persistent issues, refer to the official EBYTE datasheet or contact technical support.
9. പരിപാലനം
To ensure the longevity and optimal performance of your E32-900T20D module:
- Keep the module in a dry environment, away from moisture and corrosive substances.
- Avoid exposing the module to extreme temperatures or sudden temperature changes.
- Handle the module with care to prevent physical damage to components or pins.
- Ensure proper ventilation if operating in an enclosed space.
10. വാറൻ്റിയും പിന്തുണയും
The EBYTE E32-900T20D LoRa Wireless Module is manufactured by EBYTE. For detailed warranty information, technical support, and access to the latest datasheets and resources, please visit the official EBYTE webസൈറ്റ് അല്ലെങ്കിൽ അവരുടെ പിന്തുണാ ടീമിനെ ബന്ധപ്പെടുക.
നിർമ്മാതാവ്: EBYTE
ഉദ്യോഗസ്ഥൻ Webസൈറ്റ്: http://www.cdebyte.com/
പിന്തുണ ഇമെയിൽ: service@cdebyte.com





