Historia

Mike Kolcun a69dcfc49d Increase buffer size Avoid buffer overflows with longer mqtt topics mqtDeviceTopic in wled.h is defined with a size of 33, so this should be set to 45 to accommodate the additional 12 characters - /temperature		2021-04-02 14:04:27 -04:00
..
platformio_override.ini	…
readme.md	…
usermod_temperature.h	Increase buffer size	2021-04-02 14:04:27 -04:00
usermods_list.cpp	…

readme.md

Temperature usermod

Based on the excellent QuinLED_Dig_Uno_Temp_MQTT by srg74 and 400killer!
This usermod will read from an attached DS18B20 temperature sensor (as available on the QuinLED Dig-Uno)
The temperature is displayed both in the Info section of the web UI as well as published to the /temperature MQTT topic if enabled.
This usermod will be expanded with support for different sensor types in the future.

If temperature sensor is not detected during boot, this usermod will be disabled.

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 - define this to have this user mod included wled00\usermods_list.cpp
USERMOD_DALLASTEMPERATURE_CELSIUS - define this to report temperatures in degrees celsious, otherwise fahrenheit will be reported
USERMOD_DALLASTEMPERATURE_MEASUREMENT_INTERVAL - the number of milliseconds between measurements, defaults to 60 seconds
USERMOD_DALLASTEMPERATURE_FIRST_MEASUREMENT_AT - the number of milliseconds after boot to take first measurement, defaults to 20 seconds

Project link

QuinLED-Dig-Uno - Project link

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 DallasTemperature@~3.8.0,OneWire@~2.3.5 under [common] section in platformio.ini:

# platformio.ini
...
[platformio]
...
; default_envs = esp07
default_envs = d1_mini
...
[common]
...
lib_deps =
  ...
  #For use SSD1306 OLED display uncomment following
  U8g2@~2.27.3
  #For Dallas sensor uncomment following 2 lines
  DallasTemperature@~3.8.0
  OneWire@~2.3.5
...

Change Log

2020-09-12

Changed to use async, non-blocking implementation
Do not report low temperatures that indicate an error 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