Maduino LoRa Radio 433Mhz

The Maduino Lora Radio mainboard combines the ATmega328 microcontroller with a 433MHz LoRa module. It is designed for ultra-long range spread spectrum communication with high interference immunity and minimal current consumption. The board uses the Arduino Pro Mini 3.3V 8MHz bootloader and a CP2104 USB to serial converter for uploading code via the Arduino IDE.

Features

• Power Input: 3.4-4.2V (BAT)
• Microcontroller: ATmega328
  • 8MHz clock speed
  • 32KB flash memory
  • 2KB SRAM
• Communication Interfaces:
  • I2C
  • SPI
  • UART
  • 20 General Purpose Input/Output (GPIO) pins
• Arduino Compatibility: Supports Arduino IDE for programming.
• Operating Temperature: -40℃ to 85℃
• LoRa Module:
  • Programmable bit rate up to 300 kbps
  • 127 dB Dynamic Range RSSI
  • Operates in the license-free ISM band (433MHz)
  • Power output selectable in software (+5 to +20 dBm, up to 100 mW)
• Power Consumption:
  • ~100mA peak during +20dBm transmission
  • ~30mA during active radio listening
• Range: Approximately 2 km (dependent on obstructions, frequency, antenna, and power output)

Package Contents

• 1 x Maduino Lora Radio 433M

Documentation and Resources

• Schematic: Detailed circuit diagram of the board
• Datasheet: Technical specifications and features of the components used
• Demo Code: Example code for 433MHz module
• Wiki: Additional resources and guides for using the Maduino Lora Radio

This mainboard is ideal for applications requiring reliable long-range communication with low power consumption, such as remote sensor networks, IoT devices, and telemetry systems. The compatibility with Arduino makes it accessible for hobbyists and developers familiar with the Arduino ecosystem.