E32-433T30D LoRa 433MHZ SX1278 10KM Wireless Transmitter and Receiver UART RF Module with SMA Antenna
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The E32-433T30D is a versatile and high-performance LoRa (Long Range) RF module designed for wireless communication. Operating at 433MHz, it leverages the SX1278 transceiver chip to provide robust and long-distance data transmission capabilities. The module supports UART communication, making it suitable for integration with various microcontrollers like Arduino, Raspberry Pi, and others. The included SMA antenna enhances the signal range and reliability.
Key Applications
- Long-range wireless communication systems
- Remote sensing and monitoring
- Wireless data transmission for IoT applications
- Remote control systems
- Wireless telemetry
Specifications:
- Manufacturer: EBYTE
- Main IC: SX1278 by SEMTECH.
- Operating voltage: 2.3 – 5.5 VDC
- Transmission Rate: 0.3 – 19.2 Kbps (default 2.4 Kbps)
- Communication voltage: TTL-3.3V
- Communication UART Data bits 8, Stop bits 1, Parity none, Speed from 1200 – 115200
- Frequency: 410 – 441Mhz
- Buffer size: 512bytes
- Support 65536 address configuration
- Operating temperature: -40 ~ 85° C
- Working humidity: 10~90%
- Model: E32 433T30D LoRa SX1278 433Mhz
- Power: 30dbm (1W)
- Ideal transmission conditions: 8000m
- Sensitivity: -147dBm
- Working current: 610mA
- Size: 24 x 43mm
- Weight: 10g
Pinout:
- VCC: Power supply pin (3.3V to 5V)
- GND: Ground pin
- M0: Mode selection pin (usually connected to GND for normal operation)
- M1: Mode selection pin (usually connected to GND for normal operation)
- TX: UART Transmit pin (connects to RX of microcontroller)
- RX: UART Receive pin (connects to TX of microcontroller)
- ANT: SMA antenna connector
Features:
- LoRa Technology: Provides long-range communication with low power consumption.
- High Sensitivity: Excellent receiver sensitivity for reliable communication over long distances.
- Adjustable Data Rate: Flexibility to adjust the data rate for different communication needs.
- Built-in SMA Antenna: Enhances signal strength and range.
- Easy Integration: UART interface makes it straightforward to connect with various microcontrollers and development boards.
Usage Notes:
- Power Supply: Ensure the module receives the correct voltage. Over-voltage can damage the module.
- Antenna: Attach the SMA antenna to the module for optimal performance. Ensure the antenna is suitable for 433MHz operation.
- UART Configuration: Match the baud rate and serial communication settings with the module's configuration.
This module is ideal for projects requiring reliable and long-range wireless communication, and its UART interface simplifies integration with microcontrollers.
Package Inlcudes:
- 1 x E32433T30D LoRa module
How to interface with an Arduino UNO?
To interface the E32-433T30D LoRa 433MHz SX1278 Wireless Transmitter and Receiver UART RF Module with an Arduino UNO, follow these steps:
Components Required:
- Arduino UNO
- E32-433T30D LoRa Module
- Jumper wires
- Breadboard (optional)
- SMA Antenna for the LoRa module
Wiring Diagram:
-
E32-433T30D LoRa Module Pinout:
- VCC: Connect to Arduino 5V (or 3.3V, depending on module specifications; confirm with the module's datasheet)
- GND: Connect to Arduino GND
- M0: Connect to Arduino GND for normal mode
- M1: Connect to Arduino GND for normal mode
- TX: Connect to Arduino RX (pin 0)
- RX: Connect to Arduino TX (pin 1)
- ANT: Attach SMA antenna to this pin
-
Arduino UNO Pins:
- Pin 0 (RX): Connect to E32 module TX
- Pin 1 (TX): Connect to E32 module RX
- 5V or 3.3V: Connect to E32 module VCC (check module specifications for voltage requirements)
- GND: Connect to E32 module GND
- M0 and M1 Pins: Connect to GND for normal operation (check module datasheet for different modes)
Arduino Code:
To communicate with the E32-433T30D module, you'll use the Serial library to send and receive data over UART.
-
Transmitter Code:
void setup() { // Start serial communication with the module Serial.begin(9600); Serial.println("LoRa Transmitter Initialized"); } void loop() { // Send a test message Serial.println("Hello World!"); delay(5000); // Send every 5 seconds }
Receiver Code:
void setup() { // Start serial communication with the module Serial.begin(9600); Serial.println("LoRa Receiver Initialized"); } void loop() { // Check if there is any data available to read if (Serial.available()) { String received = ""; while (Serial.available()) { received += (char)Serial.read(); } Serial.print("Received: "); Serial.println(received); } }
Explanation:
- Serial.begin(9600): Initializes serial communication at 9600 baud rate. This baud rate should match the configuration of the E32 module.
- Serial.println("Hello World!"): Sends a test message to the E32 module.
- Serial.available(): Checks if any data is available to read from the E32 module.
- Serial.read(): Reads the incoming data byte-by-byte.
Important Notes:
-
Voltage Compatibility: Ensure that the E32 module's VCC pin matches the voltage provided by the Arduino (5V or 3.3V). Some E32 modules are sensitive to over-voltage and may require 3.3V.
-
Antenna: Attach the SMA antenna to the module for proper transmission and reception.
-
Serial Monitor: Use the Serial Monitor in the Arduino IDE to view sent and received messages.
-
Connections: Be careful with the TX/RX connections. TX from one device should connect to RX on the other, and vice versa.
This setup allows you to use the E32-433T30D LoRa module for wireless communication with an Arduino UNO, facilitating long-range data transmission and reception.
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