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Atmel AVR4019
Table 5-1. Sensor I 2 C addresses.
Sensor
SFH7770
I 2 C address
Ox38
5.1 Circuit configuration options
There are a number of hardware options are available on the Atmel Light and
Proximity One Sensors Xplained development boards to allow investigation of the
function of the sensors. Theses options are described below.
5.1.1 IR emitters
The IR emitters are mounted onto elongated tracks. This is to allow the user to
experiment with the relative placement of the emitters and sensor. There is a
graduated scale that indicates the distance in mm from the centre of the SFH7770 to
the SFH4059 IR emitter. As supplied, the emitters are 10mm from the sensor. There
are also four mounting holes for mounting different cover glass to evaluate the effect
of tint and reflection.
5.1.2 Test points
A number of test points that can be used with an oscilloscope for investigating the
function of the sensors. Figure 5-2 shows the physical location of the test points on
the board.
Figure 5-2. Location of test points.
5
8471A-AVR-11/11
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