Tested on Arduino Diecimila, Duemilanove and Mega with arduino 1.0 on OpenSuSE 12.1 with avr-libc-1.7.1-1.1, cross-avr-binutils-2.19.1-33.1 and cross-avr-gcc-4.3.3_20100125-28.1, and with arduino-0021 on the same platforms Packet FormatĪll messages sent and received by this NRF24 library must conform to this packet format, as specified by the nRF24L01 product specificaiton: Before asking a question or reporting a bug, please read Do not contact the author directly, unless it is to discuss commercial licensing. You can also find online help and disussion at Please use that group for all questions and discussions on this topic. The version of the package that this documentation refers to can be downloaded from You can find the latest version at NRF24: addressed, reliable, retransmitted, acknowledged messages (using nrf24 Enhanced Shockburst)Įxample Arduino programs are included to show the main modes of use.Up to 2 nRF24L01 modules can be connected to an Arduino, permitting the construction of translators and frequency changers, etc. This library provides functions for sending and receiving messages of up to 32 octets on any frequency supported by the nRF24L01, at a selected data rate. It supports a number of channel frequencies in the 2.4GHz band and a range of data rates. The nRF24L01 ( ) is a low-cost 2.4GHz ISM transceiver module. It provides an object-oriented interface for sending and receiving data messages with Nordic nRF24L01 based radio modules, such as the sparkfun WRL-00691 Nevertheless we recommend upgrading to RadioHead where possible. This library will no longer be maintained or updated, but we will continue to publish it for the benefit of the the community, and you may continue to use it within the terms of the license. All the platforms that NRF24 supported are also supported by RadioHead. On-board 3.3V LDO Regulator (3.This NRF24 library has now been superceded by the RadioHead library RadioHead and its RH_NRF24 driver provides all the features supported by NRF24, and much more besides, including Reliable Datagrams, Addressing, Routing and Meshes.The command set is backwards compatible with the original nRF24L01. The '+' version of the IC has improved range, sensitivity, and data rates. Please note: We now populate these boards with the nRF24L01+. This transceiver IC operates in the 2.4GHz band and has many new features! Take all the coolness of the nRF2401A and add some extra pipelines, buffers, and an auto-retransmit feature - very nice! This module uses the newest 2.4GHz transceiver from Nordic Semiconductor, the nRF24L01+.

Sparkfun nrf24l01