https://wiki.ardumower.de/index.php?action=history&feed=atom&title=Hall_sensorHall sensor - Versionsgeschichte2026-10-13T13:40:12ZVersionsgeschichte dieser Seite in www.wiki.ardumower.deMediaWiki 1.24.1https://wiki.ardumower.de/index.php?title=Hall_sensor&diff=255&oldid=prevMichael: Die Seite wurde neu angelegt: „== Hall-Sensor (Blademodulation) == caption The idea: The blade has the best performance with a certain minimum speed (e.g. 3300 ro…“2014-09-12T18:13:43Z<p>Die Seite wurde neu angelegt: „== Hall-Sensor (Blademodulation) == <a href="/index.php?title=Datei:Hallsensor.jpg" title="Datei:Hallsensor.jpg">caption</a> The idea: The blade has the best performance with a certain minimum speed (e.g. 3300 ro…“</p>
<p><b>Neue Seite</b></p><div>== Hall-Sensor (Blademodulation) == <br />
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[[File:hallsensor.jpg|caption]]<br />
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The idea: The blade has the best performance with a certain minimum speed (e.g. 3300 rounds per minute/rpm). <br />
If the blade is rotating at maximum voltage (independant if there's high or low grass), it's not saving battery power, and the robot is loud too.<br />
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Now, if you measure the rotations of the blades, you can control the voltage: on high grass (rotation decreases) voltage is increased, and on low grass (rotation increases) voltage is decreased.<br />
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So, you'll need a rotation sensor for the blades, e.g. using a Hall sensor (A1302 KUA-T) and a small magnet (Neodym magnet) added on the engine shaft.<br />
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File: motor_hallsensor.jpg<br />
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Click here [http://youtu.be/um5jXMPC6IM] for demo video<br />
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== Wiring ==<br />
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Hall Sensor A1302 +5V ---- +5V<br />
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Hall Sensor A1302 GND ---- GND<br />
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Hall Sensor A1302 Signal ---- Arduino Pin 18</div>Michael