Some exercises with the Espressif Esp_Now library
Have been playing around with some Espressif ESP8266's and Esp-Now.
Created some very basic examples.
No wifi libraries involved.
No need for knowledge of mac-addresses.
EspNowSendRecv.ino : Send-Master.
EspNowEchoServer.ino : Echo-Slave.
Send-Master : broadcasts (MAC:0xFFFFFFFFFFFF) some simple data.
Echo-Slave : receives the data and prints it.
Echo-Slave : sends the data back to the Send-Master.
Send-Master : receives the response data from Echo-Slave and prints it.
Send-Master : copies the mac-address of the responding Echo-Slave.
Send-Master : continues sending data to the Echo-Slave's mac-address.
Echo-Slave : continues responding to the Send-Master's data