Temp sensor in Fridge Freezer

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luberth
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Temp sensor in Fridge Freezer

Post by luberth » Thursday 08 November 2018 0:51

Is it possible to putt an wireless tempsensor in a fridge
will the signal come tru

or is it better to use flat ghost wire electric copperfoil tape to get a wired sensor iside the fridge/freezer
anyone experience

think it wil be nice to log the temp of fridge freezer.

antwan
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Re: Temp sensor in Fridge Freezer

Post by antwan » Thursday 08 November 2018 1:18

I have one (434 MHz) in the fridge for a least 8 years without any problems.
Rasp Pi 2B: 3x DS18S20 (1-wire), BME280 (i2c)
Cubietruck 1: Aeotec Z-Wave+, RFXtrx433E, RFXtrx868, P1 Converter, TE923 display, Voltcraft CO-20, SolarEdge proxy
Cubietruck 2: Aeotec Z-Wave, RFXtrx433E

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LouiS22
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Re: Temp sensor in Fridge Freezer

Post by LouiS22 » Thursday 08 November 2018 9:35

luberth wrote:
Thursday 08 November 2018 0:51
Is it possible to putt an wireless tempsensor in a fridge
will the signal come tru

or is it better to use flat ghost wire electric copperfoil tape to get a wired sensor iside the fridge/freezer
anyone experience

think it wil be nice to log the temp of fridge freezer.
I'm using a fibaro door sensor with and additional temp sensor embedded. It's 2in1: I can monitor the door status of the fridge and also the inside temperature.

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luberth
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Re: Temp sensor in Fridge Freezer

Post by luberth » Thursday 08 November 2018 10:22

Hello

Verry nice door switch with temperature sensor
Perfect!
This is new to me
if i look at it 2 fibaro doorsensors 100 euro + a reciever 200-300?
I am Dutch and at the moment the money is not growing on my back ;-)

AliExpress?
see some homemade examples
______microchip attny85 programmable flash microcontroller with dallas temp or temp/humid
______in combination with verry cheap send/recieve 433mhz boards from ebay / amazon / aliexpress / gearbest
Pitty i cannot find preprogrammed premade boards yet (wake up Chinese people? ;-)
above would be less then 5 dollar

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mobisat
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Re: Temp sensor in Fridge Freezer

Post by mobisat » Sunday 11 November 2018 22:26

@antwan, what make and model of temperature sensor are you using?
Raspberry PI 3 model B running Domoticz. Master and slave unit. RFLink,
Domoticz V4.9700, utilising 1 wire DS18B20 Digital Temperature Sensors. Running Domoticz Premium android app.

DutchHans
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Re: Temp sensor in Fridge Freezer

Post by DutchHans » Monday 12 November 2018 23:31

I have a cresta outdoor humidity and tempsensor in the fridge for three years now.. haven't even changed the batteries...

:)

antwan
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Re: Temp sensor in Fridge Freezer

Post by antwan » Tuesday 13 November 2018 0:32

I use an TFA.
Rasp Pi 2B: 3x DS18S20 (1-wire), BME280 (i2c)
Cubietruck 1: Aeotec Z-Wave+, RFXtrx433E, RFXtrx868, P1 Converter, TE923 display, Voltcraft CO-20, SolarEdge proxy
Cubietruck 2: Aeotec Z-Wave, RFXtrx433E

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luberth
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Re: Temp sensor in Fridge Freezer

Post by luberth » Tuesday 13 November 2018 16:55

Post by antwan » Tuesday 13 November 2018 0:32 ===>I use an TFA.


haha hmmm TFA
i used a TFA scalefaceplate amonth ago html5 canvas draw needles on it with XML/JSON weatherdata
http://84.106.2.21:8888/

oh maar dat is nog niet zon gekke prijs
oh thats not a bad price
=====8euro for temp
=====9 euro for temp/humid

https://www.conrad.nl/p/tfa-30322002-te ... hz-1642588
https://www.conrad.nl/p/tfa-30322102-co ... hz-1642587

nu eens kijken wat voor ontvanger daar bij moet voor een raspberry pi
now search for a 433mhz reciever for raspberry with TFA code
Last edited by luberth on Tuesday 13 November 2018 19:19, edited 4 times in total.

b_weijenberg
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Re: Temp sensor in Fridge Freezer

Post by b_weijenberg » Tuesday 13 November 2018 17:05

better to use a sensor outside the fridge like this one: https://www.conrad.nl/p/renkforce-ft007 ... hz-1425530
RFXtrx433, RFXtrx433E, RFXtrx433XL

TSkar
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Re: Temp sensor in Fridge Freezer

Post by TSkar » Tuesday 27 November 2018 14:45

I'm using a Telldus fridge sensor https://telldus.com/produkt/temperature ... be-433mhz/, it has a thin wire leading into the fridge.
For reading temperature it works, I get message from Domoticz if temperature goes above a set point.

In my fridge a Fibaro Door sensor could not connect to network when placed inside, and there is sadly not enough clearance to attach it outside.

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