RFM96W 433/868/915 MHz Wireless LoRa Module
RFM96W 433/868/915 MHz Wireless LoRa Module
The RFM96W is a low-power, low-cost, and highly integrated LoRa wireless communication module operating at 433 MHz, 868 MHz, and 915 MHz frequency bands. It is designed for Internet of Things (IoT) applications, wireless sensor networks, and industrial automation systems. The module provides long-range, low-power wireless communication capabilities with a high level of accuracy and reliability.
The RFM96W module is a transceiver that enables bidirectional wireless communication between devices. It modulates and demodulates radio frequency (RF) signals to transmit and receive data, respectively. The module uses the LoRa (Long Range) modulation technique, which allows for long-range communication with low power consumption.
| The RFM96W module is suitable for various IoT applications, including |
The RFM96W 433/868/915 MHz Wireless LoRa Module is a highly integrated and low-power wireless communication module suitable for various IoT applications. Its long-range capability, low power consumption, and high level of accuracy make it an ideal choice for wireless communication systems.
RFM96W 433/868/915 MHz Wireless LoRa Module DocumentationOverviewThe RFM96W is a low-power, long-range wireless LoRa module operating at frequencies of 433 MHz, 868 MHz, and 915 MHz. It is designed for IoT applications requiring wireless communication with low power consumption and high sensitivity. This module is based on the SX1276/77/78/79 chip and is suitable for a wide range of applications, including sensor networks, smart cities, industrial control, and more.FeaturesFrequency bands: 433 MHz, 868 MHz, and 915 MHz
Modulation: LoRa, FSK, OOK
Data rate: up to 300 kbps
Sensitivity: up to -148 dBm
Transmission power: up to 20 dBm
Low power consumption: 4.2 mA (transmit), 1.5 mA (receive), 200 nA (sleep)
Operating voltage: 1.8 V to 3.6 V
Interface: SPI
Dimension: 16 x 16 mmCode Examples### Example 1: Simple LoRa Transmission using ArduinoThis example demonstrates how to use the RFM96W to transmit a simple message using LoRa modulation.Hardware RequirementsRFM96W module
Arduino Board (e.g., Arduino Uno)
Breadboard and jumper wiresSoftware RequirementsArduino IDE (version 1.8.x or later)Code
```c
#include <SPI.h>
#include <RH_RF95.h>// Define the RFM96W pins
#define RF95_CS 4
#define RF95_INT 3
#define RF95_RST 2// Create an instance of the RH_RF95 class
RH_RF95 rf95(RF95_CS, RF95_INT);void setup() {
// Initialize the RFM96W module
pinMode(RF95_RST, OUTPUT);
digitalWrite(RF95_RST, LOW);
delay(10);
digitalWrite(RF95_RST, HIGH);
delay(10);// Initialize the SPI interface
SPI.begin();// Set the frequency band to 868 MHz
rf95.setFrequency(868);// Set the transmission power to 13 dBm
rf95.setTxPower(13);
}void loop() {
// Define the message to be transmitted
char message[] = "Hello, World!";// Transmit the message using LoRa modulation
rf95.send(message, sizeof(message));
delay(1000);
}
```
### Example 2: LoRaWAN Communication using Raspberry Pi and PythonThis example demonstrates how to use the RFM96W to communicate with a LoRaWAN network using a Raspberry Pi and Python.Hardware RequirementsRFM96W module
Raspberry Pi (e.g., Raspberry Pi 3)
Breadboard and jumper wiresSoftware RequirementsRaspbian OS (version 10 or later)
Python 3.x
`pyicom` library (for LoRaWAN communication)Code
```python
import os
import time
from icom.lorawan import LoRaWAN# Initialize the RFM96W module
os.system("gpio -g write 17 0") # Reset the module
os.system("gpio -g write 17 1") # Enable the module# Create an instance of the LoRaWAN class
lora = LoRaWAN(dev_eui="your_device_eui", app_eui="your_app_eui", app_key="your_app_key")# Set the frequency band to 868 MHz
lora.set_frequency(868)while True:
# Read sensor data (e.g., temperature, humidity)
sensor_data = read_sensor_data()# Create a LoRaWAN packet
packet = lora.create_packet(sensor_data, port=1)# Transmit the packet using LoRa modulation
lora.send(packet)# Wait for the next transmission interval
time.sleep(60)
```
Note: In this example, you need to replace `your_device_eui`, `your_app_eui`, and `your_app_key` with your actual LoRaWAN credentials.These code examples demonstrate the basic usage of the RFM96W module for LoRa transmission and LoRaWAN communication. Please note that you may need to modify the code to suit your specific application requirements.