[There is now a better method for removing offsets in flight. See this discussion. - WJP] The picture shows a UAV DevBoard connected to Jordi's magnetometer breakout board. First, since my discussions tend to get long winded, if you want to "cut to the chase", you might want to read this. I recently integrated Jordi's HMC5843 magnetometer breakout board with the UAV DevBoard (UDB). Jordi's b…