Very precise infrared non touch Temperature sensor less then 17.50 euro

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Charley
Posts: 28
Joined: Tuesday 06 March 2018 13:20
Target OS: Raspberry Pi
Domoticz version: V3.9030
Location: Netherlands
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Very precise infrared non touch Temperature sensor less then 17.50 euro

Post by Charley » Saturday 05 May 2018 17:59

I have made a very precise infra red thermometer. Available as a do-it yourself project.

it is as of now available on github [Wifi Thermometer][https://github.com/SpoturDeal/Esp32PreciseTemperature]

Most temperature sensors are based on an DS18B20 sensors, the disadvantage of this sensor is that is heats up itself. This results in a higher temperature and the temperature change is slower.

By using an InfraRed sensor you are able the measure the temperature in the field of view of the sensor. (you sensor could be 40C (104F) in the sun, but in field of view the temperature is on 21.2C (70F)

If you are using the sensor for controlling something else the precise temperature could benefit. The temperature are very fast because there is no cooling or heating of the sensor in our object measurement.

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remb0
Posts: 973
Joined: Thursday 11 July 2013 22:21
Target OS: Raspberry Pi
Domoticz version: Beta
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Re: Very precise infrared non touch Temperature sensor less then 17.50 euro

Post by remb0 » Sunday 06 May 2018 13:18

very nice. well documented!
maybe you can add it to the wiki.

Charley
Posts: 28
Joined: Tuesday 06 March 2018 13:20
Target OS: Raspberry Pi
Domoticz version: V3.9030
Location: Netherlands
Contact:

Re: Very precise infrared non touch Temperature sensor less then 17.50 euro

Post by Charley » Saturday 21 July 2018 20:09

Today I have uploaded a new version of the precise thermometer.

Now you can update the thermometer through WiFi over the air (OTA)
Also the temperature will be published to an MQTT server to end up in Domoticz.

There is a good explaination on MQTT https://www.domoticz.com/wiki/MQTT in the Wiki pages.

At the moment I am working on a complete weather station that will collect data on:

Temperature (this one)
Humidity
Barometer
Light Intensity (LUX)
UV level
Sound level
CO2 level

The weather station will be solar powered with battery back-up use LORA technology to transmit the data to an ESP that publishes the data to MQTT over WiFi

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