NRF24L01 2.4GHz Wireless Transceiver RF Transceiver Module

The nRF24L01 is a highly integrated, ultra low power (ULP) 2Mbps RF transceiver IC for the 2.4GHz ISM (Industrial, Scientific and Medical) band. With peak RX/TX currents lower than 14mA, a sub μA power down mode, advanced power management. A 1.9 to 3.6V supply range, the NRF24L01 provides a true ULP solution enabling months to years of battery lifetime when running on coin cells or AA/AAA batteries.

Features:

• Low cost single-chip 2.4GHz GFSK RF transceiver IC
• Worldwide license-free 2.4GHz ISM band operation
• 1Mbps and 2Mbps on-air data-rate
• Enhanced ShockBurst™ hardware protocol accelerator
• Ultra low power consumption – months to years of battery lifetime
• On-air compatible with all Nordic nRF24L Series in 1 and 2Mbps mode
• On-air compatible with Nordic nRF24E and nRF240 Series in 1Mbps mode

Applications:

• PC peripherals
• Gaming
• Sports and fitness
• Toys
• Consumer electronics

Connection:

To connect the nrf24l01+ to an Arduino, there are very specific pins that are required. This is due to the serial communications that are required. Fortunately, most of the serial is abstracted away during the code, but the following pins must be hooked up to the same pins on your Arduino; MOSI, SCK and MISO. Vcc and GND are connected to 3.3v and ground, CE and CSN can be attached to any pin and IRQ is not used when communicating with Arduinos. See the Data sheet for further information about NRF24L01 Transceiver Module.

NRF24L01 Pin Configuration:

• Pin NumberPin NameAbbreviationFunction
• 1GroundGroundConnected to the Ground of the system
• 2VccPowerPowers the module using 3.3V
• 3CEChip EnableUsed to enable SPI communication
• 4CSNShip Select NotThis pin has to be kept high always, else it will disable the SPI
• 5SCKSerial ClockProvides the clock pulse using which the SPI communication works
• 6MOSIMaster Out Slave InConnected to MOSI pin of MCU, for the module to receive data from the MCU
• 7MISOMaster In Slave OutConnected to MISO pin of MCU, for the module to send data from the MCU
• 8IRQInterruptIt is an active low pin and is used only if interrupt is required

2.4GHz RF transceiver Module

• Operating Voltage: 3.3V
• Nominal current: 50mA
• Range : 50 – 200 feet
• Operating current: 250mA (maximum)
• Communication Protocol: SPI
• Baud Rate: 250 kbps – 2 Mbps
• Channel Range: 125
• Maximum Pipelines/node : 6

Low cost wireless solution