![]() ![]() This makes the module suitable for creating star or mesh networks in IoT applications. Meaning, each module can communicate with 6 other modules to transmit or receive data. Another advantage of using these modules is that, each module has 6 Pipelines. Even though the operating voltage is 3.3V most of the pins are 5V tolerant and hence can be directly interfaced with 5V microcontrollers like Arduino. The module has on operating voltage from 1.9V to 3.6V (typically 3.3V) and consumes very less current of only 12mA during normal operation which makes it battery efficient and hence can even run on coin cells. The pinouts of a standard nRF24L01 module is shown below It gets a lot easier with Arduino since the libraries are readily available. The IC communicates using the SPI protocol and hence can be easily interfaced with any microcontrollers. The module has the generic nRF24L01 IC from Nordic semi-conductors which is responsible for transmission and reception of data. The nRF24L01 modules are transceiver modules, meaning each module can both send and receive data but since they are half-duplex they can either send or receive data at a time. We will also share some solutions for the commonly faced problems while using this module. Interesting right!!? So, in this tutorial we will learn more about these nRF24l01 modules and how to interface it with a microcontroller platform like Arduino. It is also claimed that with proper antennas these modules can transmit and receive upto a distance of 100 meters between them. These modules operate on 2.4GHz (ISM band) with baud rate from 250Kbps to 2Mbps which is legal in many countries and can be used in industrial and medical applications. Designers use many wireless communication systems like Bluetooth Low Energy (BLE 4.0), Zigbee, ESP43 Wi-Fi Modules, 433MHz RF Modules, Lora, nRF etc, and the selection of medium depends on the type of application it is being used in.Īmong all, one popular wireless medium for local network communication is the nRF24L01. While Internet of things (IoT), Industry 4.0, Machine to Machine communication etc are getting increasingly popular the need for wireless communication has become incumbent, with more machines/devices to speak with one another on the cloud.
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