Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...
Abstract: This study investigates a wireless Weigh-In-Motion (WIM) system using a single MEMS accelerometer (LIS331DLH) for vehicle axle detection. A prototype, integrating a Libelium Waspmote ...
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