ArduIMU+ V2 (flat version) is now priced at $99, which is $30 less than its orginal price. It was already the cheapest IMU/AHRS on the market, but no there's no excuse not to get one (or more!) to integrate into your own projects. The current version now has the high-pass filter removed, which was reducing the effeciency of the DCM code in earlier versions--so it's now even better! This is an unb…