Larduino with emonlib not working

Welcome to the OEM forum.

Unfortunately, if you do not say what is wrong, nobody can help you. Please read Frequently Asked Questions - #2 by Bill.Thomson and then tell us what you have tried to do, and what the result is.

EmonLib was designed for the Arduino Uno and the ATMega 328P processor. If you use a different Arduino with a different processor, you must expect that you must make changes so that it will work.