Tag to tag communication

[basparky]

Hi,
I had simular question and had great help from this forum:

Transmit 3 own double variables in poll message

Hi, I would like to transmit 3 double vars in the poll message from the initiator to a responder. in the initiator i do: memcpy(&tx_poll_msg2[12],&filtered1,MYDATA_LEN); memcpy(&tx_poll_msg2[20],&filtered2,MYDATA_LEN); memcpy(&tx_poll_msg2[28],&Angle,MYDATA_LEN); and in the responder i need to get the bytes and put them in doubles for use: double d = 0; unsigned char buf[sizeof d] = {0}; buf[0] = rx_buffer[12]; buf[1] = rx_buffer[13]; buf[2] = rx_buffer[14]; buf[3] = rx_buffer[15]; …

Perhaps this post helps you. If you need more help i do have some code running to send own variables between initiator and responders.