We've recently put together our new electronics package. It is essentially a breakout board for all of the different off the shelf boards we use. Check it out! It has a Seeedstudio Arduino Mega as the master controller, a 3.5A 5V switching regulator from Pololu, SD Card data logging, 4x 12A motor controllers. The motor controllers are controlled by two Arduino Pro Mini's (2 motor controllers to each mini) which take quadrature encoder signals as feedback for motor position and current feedback for torque limiting and control. Big improvement over our previous protoboard ratsnest.
Our second generation wind sensor is almost put together as well. It uses a AS5040 magnetic encoder chip. So far the whole thing weighs less than 15g. (ignore the mastic tape I needed something to hold the vane on temporarily) It outputs a pulse at 1kHz equal with the width equal to the orientation of the magnet attached to the wind vane shaft.
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