Optimized High Speed Driver for nRF24L01(+) 2.4GHz Wireless Transceiver

Table of Contents

• Design Goals
• News
• Useful References
  • Additional Information and Add-ons
  • More Information
• Platform Support Pages
  • General µC Pin layout

Design Goals

This library fork is designed to be...

• More compliant with the manufacturer specified operation of the chip, while allowing advanced users to work outside the recommended operation.
• Utilize the capabilities of the radio to their full potential via Arduino
• More reliable, responsive, bug-free and feature rich
• Easy for beginners to use, with well documented examples and features
• Consumed with a public interface that's similar to other Arduino standard libraries

News

See the releases' descriptions on the library's release page for a list of changes.

Important

There's going to be major changes in v2.0. As of v1.5, there is newer API that should be used instead of the deprecated API.

See our migration guide to understand what you should update in your code.

Useful References

• RF24 Class Documentation
• Support & Configuration
• Source Code
• Datasheets

Additional Information and Add-ons

• RF24Network: OSI Network Layer for multi-device communication. Create a home sensor network.
• RF24Mesh: Dynamic Mesh Layer for RF24Network
• RF24Ethernet: TCP/IP Radio Mesh Networking (shares Arduino Ethernet API)
• RF24Audio: Realtime Wireless Audio streaming
• nrf_to_nrf: OSI Layer 2 radio driver for NRF52x radios. Replaces RF24 layer for new radio devices.
• RF24G: Create a true mesh of up to 7 nrf24l01 and/or nrf52x devices
• TMRh20 Blog: RF24 Optimization Overview
• TMRh20: RPi/Linux with RF24Gateway
• All TMRh20 Documentation Main Page

More Information

• Project Blog: TMRh20.blogspot.com
• Maniacal Bits Blog
• Original Maniacbug RF24Network Blog Post
• ManiacBug on GitHub (Original Library Author)
• MySensors.org (User friendly sensor networks/IoT)

Platform Support Pages

• Arduino (Uno, Nano, Mega, Due, Galileo, etc)
• ATTiny
• Pico SDK support
• Linux Installation (or the alternative instructions using CMake), (Linux/RPi General, MRAA supported boards (Galileo, Edison, etc), LittleWire)
• Cross-compilation for linux devices
• Python wrapper available for Linux devices

General µC Pin layout

See also

also the individual board support pages for more info

Observe

The table below shows how to connect the the pins of the NRF24L01(+) to different boards. CE and CSN are configurable.

PIN	NRF24L01	Arduino UNO	ATtiny25/45/85 [0]	ATtiny44/84 [1]	LittleWire [2]	RPI	RPi -P1 Connector
1	GND	GND	pin 4	pin 14	GND	rpi-gnd	(25)
2	VCC	3.3V	pin 8	pin 1	regulator 3.3V required	rpi-3v3	(17)
3	CE	digIO 7	pin 2	pin 12	pin to 3.3V	rpi-gpio22	(15)
4	CSN	digIO 8	pin 3	pin 11	RESET	rpi-gpio8	(24)
5	SCK	digIO 13	pin 7	pin 9	SCK	rpi-sclk	(23)
6	MOSI	digIO 11	pin 6	pin 7	MOSI	rpi-mosi	(19)
7	MISO	digIO 12	pin 5	pin 8	MISO	rpi-miso	(21)
8	IRQ	-	-	-	-	-	-

• [0] https://learn.sparkfun.com/tutorials/tiny-avr-programmer-hookup-guide/attiny85-use-hints
• [1] http://highlowtech.org/?p=1695 The ATTiny2313 is unsupported due to lack of sufficient memory resources.
• [2] http://littlewire.github.io/