The NRF24L01 2.4 GHz RF Transceiver Module is a low-power, high-speed wireless communication module designed for short-range data transmission. Operating in the 2.4 GHz ISM band, it supports bidirectional communication with features like auto-acknowledgment, retransmission, and multi-node networking. This makes it ideal for IoT devices, wireless sensors, robotics, remote controls, and embedded communication projects.
Core Module Specifications
• RF Chipset: NRF24L01
• Operating Frequency: 2.4 GHz ISM band
• Communication Type: Bidirectional wireless transceiver
• Modulation: GFSK
Electrical & Interface
• Operating Voltage: 1.9 V – 3.6 V (3.3 V typical)
• Logic Level: 3.3 V (not 5 V tolerant)
• Communication Interface: SPI
• Interface Pins: VCC, GND, CE, CSN, SCK, MOSI, MISO, IRQ
• Current Consumption:
– TX: ~11 mA
– RX: ~13 mA
• Onboard Antenna: PCB trace antenna
Performance Characteristics
• Data Rates: 250 kbps, 1 Mbps, 2 Mbps
• Communication Range:
– Up to ~100 m (open space, standard module)
• Supports up to 6 data pipes for multi-node communication
• Built-in CRC and auto-retry for reliable data transfer
Physical Characteristics
• Module Type: Compact RF transceiver module
• Antenna Type: Integrated PCB antenna
• Form Factor: Ultra-small and lightweight
• Suitable for embedded and battery-powered devices
Compatibility
• Arduino Uno / Nano / Mega (with 3.3 V supply or adapter)
• ESP8266 / ESP32
• STM32, AVR, PIC microcontrollers
• Raspberry Pi (SPI interface)
Key Advantages
• Low power consumption
• High-speed wireless communication
• Simple SPI interface
• Widely supported libraries and examples
Technical Insights
• Requires a stable 3.3 V power supply
• Decoupling capacitor (10 µF–47 µF) improves stability
• Lower data rate increases range and reliability
• Not suitable for direct 5 V connection
Applications
• Wireless sensor networks
• IoT and home automation
• Remote control systems
• Robotics communication
• DIY embedded wireless projects
Pro Tip
• Use an NRF adapter board for stable 3.3 V supply
• Keep SPI wires short for better signal integrity
• Match antenna orientation for best range
• Use 250 kbps mode for long-distance communication
Package Includes
• 1 × NRF24L01 2.4 GHz RF Transceiver Module