software:
create library folder  "ST7032" into arduino/libraries
create library folder "SI4012_CW" into arduino/libraries

create library folder "Encoder" into arduino/libraries

if you donot want to create library folders, then place into same sketch's folder 
and modify #include declaration <xxx.h>  into   #include "xxx.h"

place serialmenutils.h insto same sketch folder
compile and upload to arduino nano

THIS SOFTWARE is a BETA VERSION to evaluate SI4012, hence many features depends upn datsheet parameters, if you do not understand prompt menù from serial port... do not use serial port

HARDWARE:

download datasheet of MIDAS LCD MCCOG21605D6w-FPTLWI  
http://uk.farnell.com/midas/mccog21605d6w-fptlwi/lcd-alpha-num-16-x-2-white/dp/2425757

see pinning of MCCOG21605 display into related pdf file, put reset to +5v (see .ino file)
see pinning and example schematic of SI4012 into related pdf file

connect SDA of each device to SDA pin of arduino nano (normally A4), place 4k7 pullup to 3v3
connect SCL of each device to SCL pin of arduino nano (normally A5), place 4k7 pullup to 3v3
get 3v3 for SI4012 directly from arduino nano


place a common rotary encoder with pushbutton to pin D2,D3,D4 of arduino nano (see .ino file for details)

Since SI4012 working diagram is very simple, you can solder directly to a MSOP breakout PCB, make sure to have ground plane and very short connection between bypass capacitor and ground. Good luck!

attached layout for RF PCB is an example of connection, feel free to ask me for gerber files if you need them.