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Added AS6212 Temperature Alert Interrupt Sample
Signed-off-by: John Hutcherson <[email protected]>
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‎samples/as6212_sample/CMakeLists.txt‎

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# Copyright (c) 2022 T-Mobile USA, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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cmake_minimum_required(VERSION 3.20.0)
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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project(tmp108)
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target_sources(app PRIVATE src/main.c)

‎samples/as6212_sample/Kconfig‎

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#
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# Copyright (c) 2021 Jimmy Johnson <[email protected]>
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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mainmenu "TMP108 sample application"
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config APP_REPORT_TEMP_ALERTS
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bool "Report over and under temperature alerts"
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default n
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config APP_ENABLE_ONE_SHOT
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bool "One shot low power mode"
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default n
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help
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One shot requires a callback to be invoked after the tmp108 has
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woken up and taken a temperature reading, calling sample_fetch
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starts this process. Set this to enable 1 shot mode example.
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config APP_TEMP_ALERT_HIGH_THRESH
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int "RH [%] high threshold for alert trigger in celsius"
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range 0 50
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default 26
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help
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Set this to enable alerts for high temperatures
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although this will work with one shot enabled,
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it requires continuous monitoring mode to be enabled
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to work in real time.
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See spec sheet for more details.
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config APP_TEMP_ALERT_LOW_THRESH
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int "RH [%] low threshold for alert trigger in celsius"
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range 0 50
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default 18
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help
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Set this to enable alerts for low temperatures
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although this will work with one shot enabled,
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it requires continuous monitoring mode to be enabled
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to work in real time.
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See spec sheet for more details.
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source "Kconfig.zephyr"

‎samples/as6212_sample/README.rst‎

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Title: as6212_sample
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Description:
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An AS6212 Digital Temperature Alert sensor sample to demonstrate the
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capabilities of the T-Mobile DevEdge dev kit.
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Overview:
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This sample is provided as an example to demonstrate the high accuracy AS6212
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Digital Temperature sensor with Alert functionality. The sample uses the
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AS6212's temperature high/low alerting mechanism to generate interrupts that
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awaken threads, which report the temperature data to the console and
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subsequently enter EM2 sleep mode.
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The alert-sourced interrupts, demonstrate the AS6212's temperature High and Low
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threshold alerting capability.
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- AS6212 Digital Temperature with Alert functionality.
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--------------------------------------------------------------------------------
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Requirements
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************
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-A T-Mobile DevEdge dev kit (https://devedge.t-mobile.com/)
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-A Zephyr build environment (https://docs.zephyrproject.org/latest/develop/getting_started/index.html)
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Building and Running Project:
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How this project can be built:
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-Checkout the T-Mobile downstream zephyr repo:
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cd ~/zephyrproject
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git clone https://github.com/tmobile/DevEdge-IoTDevKit-ZephyrRTOS zephyr
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-Checkout the T-Mobile zephyr-tmo-sdk repo:
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cd ~/zephyrproject
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git clone https://github.com/tmobile/DevEdge-IoTDevKit-ZephyrSDK tmo-zephyr-sdk
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-Run 'west update'
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cd ~/zephyrproject
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west update
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-Build this sample:
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cd ~/zephyrproject
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west build ~/zephyrproject/DevEdge-IoTDevKit-ZephyrSDK/samples/as6212_sample -p -b tmo_dev_edge
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(substitute your home folder for '<home folder>' in the command above)
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-Connect DevEdge dev kit:
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Connect the USB-C port furthest from the pushbutton to your computer. (The
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other USB-C port can be connected; however, it's not used for this sample.)
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-Flash as6212_sample
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cd ~/zephyrproject
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west flash
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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 4d07b602dd77 ***
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Welcome to T-Mobile DevEdge!
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This application aims to demonstrate the Gecko's Energy Mode 2 (EM2) (Deep Sleep
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Mode) and Wake capabilities in conjunction with the temperature interrupt
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of DevEdge's (tmo_dev_edge) AMS OSRAM AS6212 Digital Temperature Sensor.
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Set SENSOR_ATTR_UPPER_THRESH (44)
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Set SENSOR_ATTR_LOWER_THRESH (38)
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Set temperature_alert
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Call enable_temp_alerts
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get_temperature(): temperature is 29.2656C
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as6212_thread1(): running
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get_temperature(): temperature is 29.2656C
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as6212_thread2(): running
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get_temperature(): temperature is 29.2656C
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Awaiting the AS6212 temperature threshold-high/threshold-low (interrupt) alerts.
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While observing the console output, use a hair dryer (or similar forced air
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heat source) to momentarily raise the temperature of DevEdge board, triggering
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the AS6212 temperature-high alert. Remove the heat source and wait for the
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AS6212 temperature-low alert.
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as6212_intr_callback(): Received AS6212 Temperature Sensor ALERT Interrupt (1)
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as6212_thread1(): running
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get_temperature(): temperature is 44.0312C
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as6212_thread2(): running
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get_temperature(): temperature is 44.0312C
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as6212_intr_callback(): Received AS6212 Temperature Sensor ALERT Interrupt (2)
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as6212_thread1(): running
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get_temperature(): temperature is 37.9766C
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as6212_thread2(): running
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get_temperature(): temperature is 37.9766C
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‎samples/as6212_sample/prj.conf‎

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CONFIG_SENSOR=y
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CONFIG_STDOUT_CONSOLE=y
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CONFIG_CBPRINTF_FP_SUPPORT=y
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CONFIG_I2C=y
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CONFIG_TMP108=y
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CONFIG_ASSERT=y
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CONFIG_TMP108_ALERT_INTERRUPTS=y
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#Power Managment
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CONFIG_PM=y
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CONFIG_PM_DEVICE=y
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CONFIG_APP_REPORT_TEMP_ALERTS=y

‎samples/as6212_sample/sample.yaml‎

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sample:
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name: TMP 108 Temperature Sensor Sample
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tests:
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sample.sensor.tmp108:
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harness: console
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tags: sensors
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depends_on: i2c gpio
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filter: dt_compat_enabled("ti,tmp108")
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harness_config:
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type: multi_line
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regex:
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- "temperature is *.*C"

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