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v5.8
Internal sensors
6. Internal sensors
6.1. Temperature
Waspmote RTC has a built in internal temperature sensor which it uses to recalibrate itself. We can use it to obtain the temperature
inside Waspmote Plug & Sense!.
The sensor is shown in a 10-bit two’s complement format. It has a resolution of 0.25 ºC and the measurable temperature range
is between -40 ºC and +85 ºC. As previously specified, the sensor is prepared to measure board temperature by itself and it can
thereby compensate for oscillations in quartz crystal used as a clock.
Complete information can be found in the document “RTC Programming Guide”, available in the
Libelium website.
6.2. Accelerometer
Waspmote has a built in acceleration sensor which informs the mote of acceleration variations experienced on each one of the
3 axes (X,Y,Z). The integration of this sensor allows the measurement of acceleration on the 3 axes (X,Y,Z), establishing 2 kind of
events: Free Fall and Direction Detection Change.
Z
Y
X
Figure : Axis direction in Waspmote Plug & Sense!
Complete information can be found in the document called Accelerometer Programming Guide, available in the
of Libelium website.
