NRF24L01+ 2.4GHz Wireless Transceiver Mini Module

SMD NRF24L01+ 2.4GHz Wireless Transceiver Mini Module is an ultra-compact, high-performance solution for implementing short-range wireless communication in space-constrained electronic designs. This Surface Mount Device (SMD) variant utilizes the enhanced nRF24L01+ chipset, which operates in the worldwide license-free 2.4GHz ISM band. Consequently, it allows for seamless data transmission between microcontrollers with extremely low power consumption. By integrating a complete RF transceiver, frequency synthesizer, and the Enhanced ShockBurst™ protocol engine, this module handles complex radio operations internally. Furthermore, its miniature footprint makes it an ideal choice for wearable technology and compact IoT nodes where every millimeter of PCB space is critical. Therefore, you can achieve reliable wireless links up to 100 meters in open areas while maintaining a sleek product profile.

Key Features:

• Ultra-Miniature Design: The SMD package offers the smallest possible form factor for the nRF24L01+ series, perfect for high-density circuit boards.
• Enhanced ShockBurst™: This hardware protocol engine automatically handles packet assembly, addressing, and retransmissions, which reduces the host MCU’s processing load.
• MultiCeiver™ Capability: The module supports a simultaneous 1-to-6 star network topology, allowing a single primary node to communicate with six secondary nodes.
• Ultra-Low Power: Featuring advanced power management, the device consumes only 900 nA in deep sleep mode and 11.3 mA during peak transmission.
• High-Speed SPI: It utilizes a 4-wire Serial Peripheral Interface capable of speeds up to 10 Mbps for rapid data exchange.

Technical Specifications:

• Frequency Band: 2.400 GHz to 2.525 GHz (125 selectable channels)
• Data Rate: Programmable 250 kbps, 1 Mbps, or 2 Mbps
• Operating Voltage: 1.9 V to 3.6 V (5 V tolerant I/O pins)
• Output Power: Programmable 0, −6, −12, or −18 dBm
• Sensitivity: −82 dBm at 2 Mbps, −85 dBm at 1 Mbps, −94 dBm at 250 kbps
• Communication Range: ≈ 100 meters (Line of sight, 250 kbps)
• Modulation Format: GFSK (Gaussian Frequency Shift Keying)

Mechanical Specifications:

• Package Type: SMD / SMT (Surface Mount)
• Antenna Type: Integrated PCB trace antenna
• Mounting Style: Castellation pins for easy soldering to a host PCB
• Durability: Highly resistant to mechanical shock due to low mass and direct SMD bonding.

Dimensions:

• Module Length: ≈ 18.0 mm
• Module Width: ≈ 12.0 mm
• Board Thickness: ≈ 1.0 mm
• Weight: ≈ 0.5 g

Pinout and Wiring:

• VCC: Connect to a stable 3.3 V DC source (Do not exceed 3.6 V).
• GND: Connect to the common system ground.
• CE (Chip Enable): Activates the RX or TX mode depending on the internal register settings.
• CSN (SPI Chip Select): Set this pin low to initiate SPI communication with the module.
• SCK (Serial Clock): Connect to the SPI clock pin of the microcontroller.
• MOSI (Master Out Slave In): Connect to the SPI data output pin of the MCU.
• MISO (Master In Slave Out): Connect to the SPI data input pin of the MCU.
• IRQ (Interrupt): Optional pin that triggers low when data is received or sent.

Datasheet Reference:

• Download Nordic nRF24L01+ Official Datasheet

Commonly Used in:

• Wireless Peripherals: Powering wireless mice, keyboards, and game controllers.
• Battery Powered Nodes: Ideal for remote sensors that must operate for years on a single coin cell.
• Miniature Drones: Providing the control link for micro-quadcopters and RC aircraft.

Applications:

• Home Automation: Linking smart light switches and thermostats to a central hub.
• Industrial Monitoring: Transmitting sensor data from moving machinery where wires are impractical.
• Health Tracking: Synchronizing data from wearable heart rate monitors to a receiver base.

Equivalent Models:

• NRF24L01+PA+LNA: The high-power version featuring an external antenna connector for long-range applications.
• SI24R1: A common Chinese domestic alternative that is pin-compatible and functionally similar.
• RFM73 / RFM75: Low-cost FSK/GFSK transceivers that often serve as replacements in similar 2.4GHz designs.

Package Includes:

• 1 x SMD NRF24L01+ 2.4GHz Wireless Transceiver Mini Module