What’s different here from the previous example is that we need to create two pipes or addresses for the bi-directional communication. write(&buttonState, sizeof(buttonState)) Radio.openReadingPipe( 1, addresses) // 00002 Radio.openWritingPipe(addresses) // 00001 */ # include # include # include # include # define button 4 RF24 radio ( 7, 8) // CE, CSN const byte addresses = * Arduino Wireless Communication Tutorial Here are the two codes for the wireless communication and below is the description of them. This library is compatible with all architectures so you should be able to use it on all the Arduino boards. Just search for “rf24” and find and install the one by “TMRh20, Avamander”. We can also install this library directly from the Arduino IDE Library Manager. Once we connect the NRF24L01 modules to the Arduino boards we are ready to make the codes for both the transmitter and the receiver.įirst we need to download and install the RF24 library which makes the programming less difficult. As an Amazon Associate I earn from qualifying purchases. Breadboard and Jump Wires ………… Amazon / Banggood / Aliexpressĭisclosure: These are affiliate links.Arduino Board ……………………………… Amazon / Banggood / Aliexpress.

NRF24L01 Transceiver Module……… Amazon / Banggood / Aliexpress.Wire.begin() This command prepares a few buffers for storing streams of data, and runs a function from twi. You can get the components needed for this Arduino tutorial from the links below: Arduino Wire Library Functions Acting as Master. As I already mentioned, each Arduino board has different SPI pins, so keep that in mind when connecting the modules to your Arduino board.

Tiny wire library