I have a project needing a data link (sending 10 bytes)
for remote control.  I am using a 418MHz miniature
Receiver and Transmitter.  The Rx o/p goes high
on receipt of a carrier (o/p fed to a PIC) and so I will need to detect
a start bit then a security number to ensure it is not noise then
10 data bytes then a CRC byte to verify all was received intact.

The Tx will be fed from a PIC to send the start+security byte +
10 data bytes + CRC byte.

Before I 're-invent the wheel'  has anyone done this before,
and if so, is any standard code available?

Thanks

Stephen H Alsop    steve@s.ssystems.easynet.co.uk
S&S Systems Ltd   http://easyweb.easynet.co.uk/~s.ssystems