2019-12-17 04:13:17 +08:00
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.. _isl29035:
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ISL29035: Digital Light Sensor
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##############################
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Overview
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********
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If trigger is not enabled the sample displays measured light intensity
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every 2 seconds.
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If trigger is enabled the sample displays light intensity from the
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ISL29035 sensor every 10 seconds if it is within +/- 50 lux of the last
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read sample. If the sensor detects an intensity outside that range the
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application wakes, displays the intensity, resets the intensity range
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window to center on the new value, then continues as before.
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Requirements
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************
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This sample uses an external breakout for the sensor. A devicetree
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overlay must be provided to connect the sensor to the I2C bus and
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identify the interrupt signal.
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Building and Running
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********************
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.. zephyr-app-commands::
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:zephyr-app: samples/sensor/isl29035
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2020-04-03 00:24:56 +08:00
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:board: nrf52dk_nrf52832
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2019-12-17 04:13:17 +08:00
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:goals: build
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:compact:
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Sample Output
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=============
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.. code-block:: console
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*** Booting Zephyr OS build zephyr-v2.1.0-335-gfe020d937d43 ***
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ALERT 365 lux outside range centered on 0 lux.
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Next alert outside 315 .. 415
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[0:00:00.018] Ambient light sense: 365.234
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[0:00:10.023] Ambient light sense: 361.084
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ALERT 302 lux outside range centered on 365 lux.
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Next alert outside 252 .. 352
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[0:00:13.276] Ambient light sense: 302.734
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ALERT 247 lux outside range centered on 302 lux.
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Next alert outside 197 .. 297
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[0:00:14.619] Ambient light sense: 247.62
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ALERT 187 lux outside range centered on 247 lux.
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Next alert outside 137 .. 237
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[0:00:16.141] Ambient light sense: 187.927
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ALERT 126 lux outside range centered on 187 lux.
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Next alert outside 76 .. 176
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[0:00:16.410] Ambient light sense: 126.953
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ALERT 181 lux outside range centered on 126 lux.
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Next alert outside 131 .. 231
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[0:00:17.843] Ambient light sense: 181.03
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ALERT 235 lux outside range centered on 181 lux.
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Next alert outside 185 .. 285
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[0:00:18.022] Ambient light sense: 235.779
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ALERT 301 lux outside range centered on 235 lux.
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Next alert outside 251 .. 351
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[0:00:23.126] Ambient light sense: 301.758
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ALERT 353 lux outside range centered on 301 lux.
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Next alert outside 303 .. 403
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[0:00:23.305] Ambient light sense: 353.333
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[0:00:33.310] Ambient light sense: 365.112
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<repeats as necessary>
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