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User’s Guide
SWRU321A
– May 2013
Page 20/32
LV_SPI_MISO
SPI MISO (acc. output)
RF1.20_MISO (P407.5)
RF1.20
Table 8
– Accelerometer signal connections
6.7 Ambient Light Sensor
The SmartRF06EB has an analog SFH 5711 ambient light sensor (ALS) from Osram [7] that is
available for the mounted EM via the EM connectors, enabling quick application development for
demo use and prototyping. Figure 14 and Table 9 shows an overview of I/O signals related to the
ambient light sensor.
The recommended operating condition for the ambient light sensor is a supply voltage between
2.3 V and 5.5 V. The min (max) operating temperature is -40 (+85)
˚C.
Ambient Light Sensor
LV_ALS_OUT
LV_ALS_PWR
22
k
O
hm
Figure 14
– Simplified schematic of Ambient Light Sensor setup
Signal name
Description
Probe header
EM pin
LV_ALS_PWR
ALS power enable signal
RF2.6 (P407.7)
RF2.6
LV_ALS_OUT
ALS output signal (analog)
RF2.5 (P411.6)
RF2.5
Table 9
– Ambient Light Sensor signal connections
6.8 Buttons
There are 6 buttons on the SmartRF06EB. Status of the LEFT, RIGHT, UP, DOWN and SELECT
buttons are available to the mounted EM. These buttons are intended for user interfacing and
development of demo applications.
The EM RESET button resets the mounted EM by pulling its reset line low (RF2.15_RESET
¯¯¯¯¯¯¯¯¯¯¯¯¯).
Table 10 shows an overview of I/O signals related to the buttons.
Signal name
Description
Probe header
EM pin
LV_BTN_LEFT
Left button (active low)
RF1.6 (P406.4)
RF1.6
LV_BTN_RIGHT
Right button (active low)
RF1.8 (P406.5)
RF1.8
LV_BTN_UP
Up button (active low)
RF1.10 (P406.6)
RF1.10
LV_BTN_DOWN
Down button (active low)
RF1.12 (P406.8)
RF1.12
LV_BTN_SELECT
Select button (active low)
RF1.14 (P406.10)
RF1.14
¯¯¯¯¯¯¯¯¯¯¯¯¯¯
LV_BTN_RESET
EM reset button (active low)
RF2.15_RESET
¯¯¯¯¯¯¯¯¯¯¯¯¯ (P411.4)
RF2.15
Table 10
– Button signal connections
Содержание SmartRF06
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