I now run my miner from the rpi. It works so far but i want to know how and where i can change the const for the maximum voltage. I used ./autogen.sh --enable-avalon to compile but i dont know what file to edit for the const.
Probably these lines in driver-avalon.h
#define BITBURNER_DEFAULT_CORE_VOLTAGE 1200 /* in millivolts */
#define BITBURNER_MIN_COREMV 1000
/* change here if you want to risk killing it :) */
#define BITBURNER_MAX_COREMV 1310