WLED/usermods/Temperature/readme.md

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# Temperature usermod
Based on the excellent `QuinLED_Dig_Uno_Temp_MQTT` usermod by srg74 and 400killer!
Reads an attached DS18B20 temperature sensor (as available on the QuinLED Dig-Uno)
Temperature is displayed in both the Info section of the web UI as well as published to the `/temperature` MQTT topic, if enabled.
May be expanded with support for different sensor types in the future.
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If temperature sensor is not detected during boot, this usermod will be disabled.
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Maintained by @blazoncek
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## Installation
Copy the example `platformio_override.ini` to the root directory. This file should be placed in the same directory as `platformio.ini`.
### Define Your Options
* `USERMOD_DALLASTEMPERATURE` - enables this user mod wled00/usermods_list.cpp
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* `USERMOD_DALLASTEMPERATURE_MEASUREMENT_INTERVAL` - number of milliseconds between measurements, defaults to 60000 ms (60s)
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All parameters can be configured at runtime via the Usermods settings page, including pin, temperature in degrees Celsius or Farenheit and measurement interval.
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## Project link
* [QuinLED-Dig-Uno](https://quinled.info/2018/09/15/quinled-dig-uno/) - Project link
* [Srg74-WLED-Wemos-shield](https://github.com/srg74/WLED-wemos-shield) - another great DIY WLED board
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### PlatformIO requirements
If you are using `platformio_override.ini`, you should be able to refresh the task list and see your custom task, for example `env:d1_mini_usermod_dallas_temperature_C`.
If you are not using `platformio_override.ini`, you might have to uncomment `OneWire@~2.3.5 under` `[common]` section in `platformio.ini`:
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```ini
# platformio.ini
...
[platformio]
...
; default_envs = esp07
default_envs = d1_mini
...
[common]
...
lib_deps =
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...
#For Dallas sensor uncomment following line
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OneWire@~2.3.7
# ... or you may want to use following with ESP32
; https://github.com/blazoncek/OneWire.git # fixes Sensor error on ESP32...
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```
## Change Log
2020-09-12
* Changed to use async non-blocking implementation
* Do not report erroneous low temperatures to MQTT
* Disable plugin if temperature sensor not detected
* Report the number of seconds until the first read in the info screen instead of sensor error
2021-04
* Adaptation for runtime configuration.
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2023-05
* Rewrite to conform to newer recommendations.
* Recommended @blazoncek fork of OneWire for ESP32 to avoid Sensor error