Temp sensor in Fridge Freezer

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luberth
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Temp sensor in Fridge Freezer

Post by luberth »

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 »

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+, RFXtrx433XL+P1, RFXtrx868, TE923 display, SolarEdge API
Cubietruck 2: Aeotec Z-Wave, Voltcraft CO-20
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LouiS22
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Re: Temp sensor in Fridge Freezer

Post by LouiS22 »

luberth wrote: Wednesday 07 November 2018 23:51 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 »

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 »

@antwan, what make and model of temperature sensor are you using?
Raspberry PI 3 model B running Domoticz. RFLink, Zigbee2MQTT,
Domoticz V2020.1, 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 »

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 »

I use an TFA.
Rasp Pi 2B: 3x DS18S20 (1-wire), BME280 (i2c)
Cubietruck 1: Aeotec Z-Wave+, RFXtrx433XL+P1, RFXtrx868, TE923 display, SolarEdge API
Cubietruck 2: Aeotec Z-Wave, Voltcraft CO-20
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luberth
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Re: Temp sensor in Fridge Freezer

Post by luberth »

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 18:19, edited 4 times in total.
b_weijenberg
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Re: Temp sensor in Fridge Freezer

Post by b_weijenberg »

better to use a sensor outside the fridge like this one: https://www.conrad.nl/p/renkforce-ft007 ... hz-1425530
RFXtrx433, RFXtrx433E, RFXtrx433XL, RFX433XL, RFX868XL
TSkar
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Re: Temp sensor in Fridge Freezer

Post by TSkar »

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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luberth
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Re: Temp sensor in Fridge Freezer

Post by luberth »

yes its possible

maybe did it in a strange way
but it is working with a cheap chinese digoo wireless 433mhz teperature sensor

http://84.106.2.21:8888/forum/index.php ... iew&id=213
http://test:[email protected]:8080/#/Dev ... eratureLog


.
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