RFM75 Module

The RFM75 is a compact 2.4 GHz ISM-band wireless transceiver module designed for short-range, low-power data communication. It is fully compatible with the popular nRF24L01 protocol, making it easy to integrate into existing designs. With an onboard PCB antenna and minimal external components, the RFM75 is ideal for embedded wireless communication projects.

Technical Specifications:

• Frequency Band: 2.4 GHz ISM
  
• Wireless IC: RFM75 (nRF24L01-compatible)
  
• Modulation: GFSK
  
• Data Rate: 250 kbps / 1 Mbps / 2 Mbps
  
• Supply Voltage: 1.9 – 3.6 V
  
• Interface: SPI
  
• Transmit Power: Up to +0 dBm
  
• Receiver Sensitivity: Down to −94 dBm
  
• Antenna: Integrated PCB antenna
  
• Operating Range: Up to ~100 m (line-of-sight, environment dependent)

Features:

• Low power consumption suitable for battery-powered devices
  
• SPI interface for easy microcontroller integration
  
• Multi-channel and multi-pipe communication support
  
• Automatic acknowledgment and retransmission
  
• Compact SMD design with onboard antenna
  
• Compatible with Arduino, STM32, ESP32 (via level-safe SPI)

Applications:

• Wireless sensor networks
  
• Remote controls and wireless switches
  
• IoT and home automation projects
  
• Robotics and telemetry systems
  
• DIY RF communication projects