[[File:megarf_render.png|400px]]
The following is the original (-01) schematic, which was never publically released. The following changes were made in -02:
* MOSI/MISO was switched on Atmel device (requires PCB fix)
* GPIO3 is now optionally in control of 4066 instead of being hardwired
* Serial resistors added on SCK/MISO/MOSI lines
[[File:CW308T_ATMegaRF_01.png|1000px]]