Cheap UHF spectrum analyzer (and RC tx rx) using RFM22 module

Hi guys,

Since I have sold and/or used all of my boards, I decided to make a batch of new ones.

The major updates of the Rev 3 boards will be:

  • Smaller: 37x48mm, vs. 43x50mm Rev 2
  • Will use a slightly better LDO for 3.3V: MCP1825S. With only 210 mV drop out, so may benefit people like myself that using lots of servos powered from 5V.
  • 0.1 inch pin spacing for servos!!!!111

See attached pictures.

I will be making a new batch of 10 boards, mostly for my own use. If you want any please let me know. Also if you have any suggestions/comments I will be interested to hear. I have a choice of different board colours and thicknesses too...