We are working with Sparkfun RFM69HCW 915mhz using Arduino, made all connections from Sparkfun hookup guide and code from sparkfun github .It doesn't show transmission of data.please help me out how to make it work.it show no ack received on a serial port.
It may have something to do with your code, wiring, antenna, or power supply. But, how could anyone possibly help, since you have not provided any details relating to those items. Post YOUR code (in code tags) and post photos of your setup.
And if your following a Sparkfun tutorial with one of their boards, you might want to ask Sparkfun for assistance.