NRF24L01 2.4g无线模块原理PCB文件

# NRF24L01 Module > NRF24L01 Module Patch Antenna PCB Project ## What is nRF24L01?  The NRF24L01 is a wireless transceiver RF module, where each module can send and receive data. Since it operates on the 2.4 GHz ISM band, the technology is approved for engineering applications in almost all countries. This module can cover 100 meters (200 feet) when operated efficiently, making it suitable for wireless remote control projects. The NRF24L01 module is powered by 3.3 Volts, so it can be easily used in both 3.2 Volts and 5 Volts systems. Each module has an address range of 125 to communicate with the other 6 modules and also allows several wireless units to communicate with each other in a specified location. Therefore, mesh and other types of networks use this module. NRF24L01 is a radio transceiver module (SPI protocol) used to send and receive data at ISM operating frequency from 2.4 to 2.5 GHz. This transceiver module is composed of a frequency generator, beat controller, power amplifier, crystal oscillator modulator, and demodulator. It consumes only 11.3 mA at 0 dBm transmit power and consumes 13.5 mA in receive mode. The high over-the-air data rate combined with sleep mode is highly preferred for ultra-low power applications. The internal voltage regulator controls the high power rejection ratio and power band. The module is compact and can be easily used in confined spaces. ## Features nRF24L01 - True single chip GFSK transceiver - Complete OSI Link Layer in hardware - Enhanced ShockBurstTM - Auto ACK & retransmit - Address and CRC computation - On the air data rate 1 or 2Mbps - Digital interface (SPI) speed 0-8 Mbps - 125 RF channel operation - Short switching time enable frequency hopping - Fully RF compatible with nRF24XX - 5V tolerant signal input pads - 20-pin package (QFN20 4x4mm) - Uses ultra low cost +/- 60 ppm crystal - Uses low cost chip inductors and 2-layer PCB - Power supply range: 1.9 to 3.6 V ## Applications - Wireless mouse, keyboard, joystick - Keyless entry - Wireless data communication - Alarm and security systems - Home automation - Surveillance - Automotive - Telemetry - Intelligent sports equipment - Industrial sensors - Toys ## PCB Overview I developed "NRF24L01 Module Patch Antenna PCB Project" to help people to learn how to design their own boards.  ## License PATECH License Copyright © 2023 PATECH Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ## Author - [@Alireza-Jahanbakhshi](https://www.github.com/Alireza-Jahanbakhshi)