RF-NRF24L01 2.4GHz Ultra-Low Power RF Wireless Transceiver Module
Establish high-speed, multi-node wireless networks with the NRF24L01 2.4GHz RF Transceiver Module. Precision-engineered for robust digital communication, this ultra-low-power module operates on the worldwide license-free 2.4 GHz ISM band.
Unlike simple one-way radio modules, the NRF24L01 is a true transceiver—meaning a single board can both transmit and receive high-speed data packets simultaneously. It features an onboard hardware protocol engine (Enhanced ShockBurst™) that automatically handles packet assembly, error checking, and data re-transmissions. This makes it the absolute gold-standard choice for complex mesh networks, wireless robotics telemetry, remote drone controls, and industrial IoT tracking.
Key Features
True Two-Way Transceiver: Every individual board can dynamically switch between transmitter and receiver modes on the fly, allowing interactive, bi-directional data pipelines.
Hardware Protocol Engine: Onboard Enhanced ShockBurst™ technology handles packet framing, CRC error detection, and automatic packet acknowledgment (Auto-ACK) internally, freeing up your host microcontroller's processing cycles.
Multi-Ceiver Network Mesh: Supports up to 6 independent data pipelines (data pipes) simultaneously, enabling a star or mesh network topology where 6 remote sensor nodes can stream data into 1 central master hub.
Integrated PCB Trace Antenna: Designed with a highly optimized, built-in meandering trace antenna, providing stable wireless communication across distances of 50 to 100 meters in open, line-of-sight environments.
Ultra-Low Power Footprint: Engineered with advanced power-management states, consuming as little as 900nA in deep power-down mode and just 11.3mA during active high-speed transmission.
Technical Specifications
Feature | Specification |
Core Transceiver Chip | Nordic Semiconductor nRF24L01+ |
Operating Frequency Band | 2.4 GHz ISM Band (2400 MHz to 2525 MHz) |
RF Channels | 125 Selectable Channels (Allows multi-system co-existence) |
Air Data Rate Speed | Programmable: 250 Kbps, 1 Mbps, or 2 Mbps |
Operating Voltage | 1.9V to 3.6V DC (DO NOT exceed 3.6V on VCC) |
Logic I/O Level | 5V Tolerant (Pins like SPI can interface directly with 5V Arduino) |
Output Power | Programmable: 0dBm, -6dBm, -12dBm, or -18dBm |
Host Interface Protocol | High-Speed 4-wire SPI (Up to 10 Mbps data bus clock) |
Module Dimensions | 29 mm x 15 mm |
Hardware Interface & Pin Mapping
The NRF24L01 breaks out a standardized $2\times4$ male header pin layout. It interfaces directly with any development board (Arduino, ESP32, STM32, Raspberry Pi) via the hardware SPI bus:
Pin 1 (GND): System Ground Reference.
Pin 2 (VCC): Power Input Rail (1.9V to 3.6V Max). Must connect to a clean, decoupled 3.3V power source.
Pin 3 (CE): Chip Enable. Digital input pin used to toggle the radio between active Rx/Tx states or standby modes.
Pin 4 (CSN): SPI Chip Select Not. SPI activation control line.
Pin 5 (SCK): SPI Serial Clock. Synchronizes high-speed data transmission clocks from the master controller.
Pin 6 (MOSI): SPI Master Out Slave In. Data path traveling into the NRF24L01 module.
Pin 7 (MISO): SPI Master In Slave Out. Data path coming out of the NRF24L01 module into the microcontroller.
Pin 8 (IRQ): Maskable Interrupt Request output pin. Pulls LOW instantly when a new data packet arrives, a packet is successfully sent, or a transmission fails.
Common Applications
High-Speed Wireless Robotics: Stream real-time telemetry from a moving robotic car chassis or an aerial drone to a handheld transmitter array with zero lag.
Multi-Node IoT Sensor Mesh: Deploy multiple standalone environmental sensors around a warehouse or greenhouse that automatically funnel data back into a main gateway.
Custom Remote Gaming Controllers: Build custom low-latency wireless gamepads, industrial crane controllers, or key fobs.
Wireless PC Peripherals: Design plug-and-play wireless mice, custom macro keypads, or automated asset trackers.
💡 Pro-Engineering Hardware Tip: The NRF24L01 is highly sensitive to power supply electrical noise. For rock-solid data transmissions and to unlock the absolute maximum range of the chip, it is highly recommended to solder a 10µF decoupling capacitor directly across the VCC and GND pins of the module, or use an NRF24L01 Socket Adapter Base Board with an integrated 3.3V LDO regulator.
Package Includes:
1 x NRF24L01 2.4GHz RF Wireless Transceiver Module