https://devzone.nordicsemi.com/f/nordic-q-a/631/2-wire-communication-between-two-nrf24le1-coding-problemi want to use 2-wire to do the communication of two nrf24le1. one is the master, another is slave. I don&#39;t know how to set up the master and slave. Is it the code shown below correct? P0.1 and P0.2 connect with two LED. master void I2C_ISP(voiden-USTelligent Community 13Mon, 07 Nov 2016 14:15:08 GMThttps://devzone.nordicsemi.com/thread/3237?ContentTypeID=1Mon, 07 Nov 2016 14:15:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1cc00ef1-9a04-4bc8-84d8-4c653199deadberkutta<p>@hungbui I tried the master but I only get 1 packet with content 0xFF. What am I doing wrong?</p> <pre><code> uint8_t data_string[5] = { 0xAA, 0xBB }; hal_w2_write(0x80, data_string, 2); </code></pre><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/3236?ContentTypeID=1Fri, 18 Oct 2013 09:55:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5399c2a3-3f6e-4366-aef3-9bccf3f32039Hung Bui<p>Hi Lam,</p> <p>Please find an example of I2C communication between nRF24LE1 in the attachment. Note that the example used modified version of hal library. In the example, the master will send 100 identical bytes and read 100 bytes from slave. On the slave, after receive 100 bytes it will increase the value of each byte by 1 and wait for them to be read back by the master.</p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/I2C_5F00_Master.rar">I2C_Master.rar</a></p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/I2C_5F00_Slave.rar">I2C_Slave.rar</a></p><div style="clear:both;"></div>