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| == Hall Effect Sensor == | | == Hall Effect Sensor == |
| + | A Hall Effect sensor such as the UGN3503UA Hall Effect Sensor http://www.jaycar.com.au/products_uploaded/ZD1902.pdf can be used to measure magnetic fields. This sensor requires +5V, this is available from the XO's USB connectors. |
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| + | see also http://wiki.laptop.org/go/Making_XO_sensors/How_to_connect_sensors |
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| ==Links== | | ==Links== |