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NRF24L01 Arduino Tutorial - Wireless Communication

NRF24L01 Arduino Tutorial - Wireless Communication in this video we will see how to use the nrf24l01 to communicate wirelessly with 2 arduino boards first we will have an overview of the features of the nrf24l01 then we will test the module with an example code in example 1, we will send a Hello World Message over 1 board to another in the second example, we will control a led bulb on the uno using button on the nano, and simultaneously control a servo motor on the nano using a joystick on the uno. Code and Schematic Link: https://bit.ly/34qNUqA the nrf24l01 is a rf transciever module, which means a single module works as both transmitter and receiver it operates at a frequency of 2.4 ghz, which is one of the ISM band, meaning it is open to use in most countries the operating voltage is 1.9-3.6v, but the logic pins are 5v tolerant, so it can work with arduino it has a baud rate or transfer rate of 250kbps to 2mbps it has a maximum range of 100 metres, but works upto 60 metres in real conditions it has 125 channels, meaning it can have a network of 125 transcievers at the same time the power consumption during transmission is around 13mA it uses SPI communication protocol now lets see the connection you have to connect the MOSI, MISO, SCK pins to the SPI pins of the arduino. different arduinos have different pins for SPI. you can check the wiring diagram. the SCN and CE pins can be connected to any digital pins of the arduino we are using this IC socket base for the module, which has a power regulator and parallel capacitor for safety. you can have any input voltage in this socket base. the last pin is an interrupt pin which is not used. once we have connected the modules to the arduino, we can proceed to upload the code. first we need to download the rf24 library. you can find the download link below. we need to include the spi, nrf24l01 and rf24 libraries we then define the ce and csn pins connected to the rf module. and we define a 6 character address to the module, which is same of the receiver with the radio.begin command, we initiate communication between the modules. with the radio.openwritingpipe/reading pipe, we enable the module to transmit or receive data. with the radio.start/stoplistening command, we begin reading any incoming data on the module. you can find the codes in the description below. now lets check the serial monitor to see the incoming message. in our second example, we control a servo motor on the nano using a joystick on the uno, and we control an led bulb on the uno with a button on the nano. you can find the code for it in the descriotion below. i have used my portable power supply to power the circuit as the servo consumes high current as you can see i am able to control the servo and led. hope you enjoyed the video. do let me know your views in the comment below. Solder Iron i Use: http://bit.ly/2GSArih Helping Hand Magnifier: http://bit.ly/2Uh11oe arduino uno Micro USB: http://bit.ly/aRdUiNo also do check out these cool 3d Printers: Creality Ender 3 pro : http://bit.ly/36m1POI Creality CR-10s pro: http://bit.ly/2QmqU6z