Im interested in a sample sketch which would do something if some specific text is received through the radio.
Thanks
Many examples here (https://github.com/LowPowerLab/RFM69/tree/master/Examples).
The TXRXBlinky example (https://github.com/LowPowerLab/RFM69/blob/master/Examples/TxRxBlinky/TxRxBlinky.ino) is a good one which you load on both your Moteinos. Here's LadyAda trying this example:
https://youtu.be/n_fJoKhSk3g?t=21m17s