WoW, the hounds are loose !!!! Just been catching up a little and using some of your changes to the .yaml file for the v1 sensors and saw that you were wanting to get the src.ino code generated, into the arduino,
Maybe try rosrun openag_brain firmware -t upload -p ros launch/personal_food_computer_v1.yaml?
I don't know if this will make a difference but it would be worth a shot,
I found It works if you use; the full path,
rosrun openag_brain firmware --target upload /home/pi/catkin_ws/src/openag_brain/launch/personal_food_computer_v1Mrb.yaml
Didn't get rid of the contents of, firmware/lib, system comes up but or my sensor config, even with dht22 not connected it's continually unable to read the data from the arduino Eveybody appears to have some form of timing issue ???
So how does the, UI, see the data from the sensors and usb_cam now it's not stored in the database. ???