my_make file determines (during firmware build process) important properties of the firmware. However, there is nothing to do about it normally
Use the default my_make file that comes in firmware/doc/my_make unless you have a good reason to do otherwise (eg. old board without inverting FETdriver, or 4x16 LCD). Copy my_make file to firmware/etc directory. Don't change to uppercase, or don't (rename) add file extension.
# whatever is on a line after a hashmark is just comment: same effect as if it was not there MY_CONF += -D GENBOARDv3 MY_CONF += -D FETDRIVER_INVERTING MY_CONF += -D LCD MY_CONF += -D LCD_4x20 MY_CONF += -D PS2KEYBOARD MY_CONF += -D BENCHMARK MY_CONF += -D CELSIUS # MY_CONF += -D WBO2
You will want to uncomment (remove the '#' from) the WBO2 related line (before building the firmware of course) in order to use WBO2. You have license to do so for firmware that you only use on v3.x board(s) from WebShop. More license info on GenBoard/Manual/License/WBSensor.