HC908 VFO
HC908VFO is a VFO software program that runs on a small, standalone collection of “daughtercards” that will be familiar to Micro908 users. What we did was simply connect the powerful HC908 Daughtercard microcontroller to one of the very popular DDS Daughtercards, and added an LCD and rotary encoder to form a very flexible signal generator in the RF range. We used some of the well-tested software modules from the Micro908 to consruct this simple VFO, then further simplified its operation by giving the user control over a multitude of features.
   HC908 VFO
Full description at HC908 VFO website
www.amqrp.org