Remove avrdude options from makefile. User should create a avrdude.rc / ~/.avrduderc with options.
Create binary files for fuses, because these are supported by avrdude (and text files with hex strings are not).
Add default e2p file for basestation.
Add info about how to flash your ATMega in README.
Using avrdude raw option for writing e2p file is the better choice than autodetection.
Add default e2p file for temp sensor.