1.. zephyr:code-sample:: isl29035
2   :name: ISL29035 Digital Light Sensor
3   :relevant-api: sensor_interface
4
5   Get light intensity data from an ISL29035 sensor (polling & trigger mode).
6
7Overview
8********
9
10If trigger is not enabled the sample displays measured light intensity
11every 2 seconds.
12
13If trigger is enabled the sample displays light intensity from the
14ISL29035 sensor every 10 seconds if it is within +/- 50 lux of the last
15read sample.  If the sensor detects an intensity outside that range the
16application wakes, displays the intensity, resets the intensity range
17window to center on the new value, then continues as before.
18
19Requirements
20************
21
22This sample uses an external breakout for the sensor.  A devicetree
23overlay must be provided to connect the sensor to the I2C bus and
24identify the interrupt signal.
25
26Building and Running
27********************
28
29.. zephyr-app-commands::
30   :zephyr-app: samples/sensor/isl29035
31   :board: nrf52dk/nrf52832
32   :goals: build
33   :compact:
34
35Sample Output
36=============
37
38.. code-block:: console
39
40   *** Booting Zephyr OS build zephyr-v2.1.0-335-gfe020d937d43  ***
41   ALERT 365 lux outside range centered on 0 lux.
42   Next alert outside 315 .. 415
43   [0:00:00.018] Ambient light sense: 365.234
44   [0:00:10.023] Ambient light sense: 361.084
45   ALERT 302 lux outside range centered on 365 lux.
46   Next alert outside 252 .. 352
47   [0:00:13.276] Ambient light sense: 302.734
48   ALERT 247 lux outside range centered on 302 lux.
49   Next alert outside 197 .. 297
50   [0:00:14.619] Ambient light sense: 247.62
51   ALERT 187 lux outside range centered on 247 lux.
52   Next alert outside 137 .. 237
53   [0:00:16.141] Ambient light sense: 187.927
54   ALERT 126 lux outside range centered on 187 lux.
55   Next alert outside 76 .. 176
56   [0:00:16.410] Ambient light sense: 126.953
57   ALERT 181 lux outside range centered on 126 lux.
58   Next alert outside 131 .. 231
59   [0:00:17.843] Ambient light sense: 181.03
60   ALERT 235 lux outside range centered on 181 lux.
61   Next alert outside 185 .. 285
62   [0:00:18.022] Ambient light sense: 235.779
63   ALERT 301 lux outside range centered on 235 lux.
64   Next alert outside 251 .. 351
65   [0:00:23.126] Ambient light sense: 301.758
66   ALERT 353 lux outside range centered on 301 lux.
67   Next alert outside 303 .. 403
68   [0:00:23.305] Ambient light sense: 353.333
69   [0:00:33.310] Ambient light sense: 365.112
70
71   <repeats as necessary>
72