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Activities/Turtle Art/Using Turtle Art Sensors (view source)
Revision as of 22:17, 2 February 2011
, 22:17, 2 February 2011→Hall Effect Sensor
The sensor has an output of half supply voltage (2.5V) at zero magnetic field with a sensitivity of 1.3mV/Gauss. This makes it suitable for connection to the XO1.5 (input range 0.17 - 3.3V). For the XO1.0 (input range 0.4 - 1.85V ) a 2:1 voltage divider is necessary.
The sensor has an output of half supply voltage (2.5V) at zero magnetic field with a sensitivity of 1.3mV/Gauss. This makes it suitable for connection to the XO1.5 (input range 0.17 - 3.3V). For the XO1.0 (input range 0.4 - 1.85V ) a 2:1 voltage divider is necessary.
[[File:Hallpinout.jpg |150px]]
[[File:Hallpinout.jpg |150px]] [[File:Hall10divider.jpg]]
<i>left XO1.5 connection, right XO1.0 with 2:1 vol;tage divider
Compare the sensitivity, 1.3mV/Gauss with common magnetic fields http://en.wikipedia.org/wiki/Gauss_%28unit%29
Compare the sensitivity, 1.3mV/Gauss with common magnetic fields http://en.wikipedia.org/wiki/Gauss_%28unit%29