# \#temperature

**URL:** https://community.openenergymonitor.org/tag/temperature/209.md

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## [Shelly Plus H&T Wireless Temperature Sensor to Emoncms via MQTT](https://community.openenergymonitor.org/t/shelly-plus-h-t-wireless-temperature-sensor-to-emoncms-via-mqtt/21991)

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**Author:** [@glyn.hudson](https://community.openenergymonitor.org/u/glyn.hudson)\
**Replies:** 34\
**Last updated:** [15 November 2025 00:32 UTC](https://community.openenergymonitor.org/t/shelly-plus-h-t-wireless-temperature-sensor-to-emoncms-via-mqtt/21991 "2025-11-15T00:32:54Z")

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The Shelly Plus H&T is a WiFi connected temperature and humidity sensor with a nice e-ink display and local MQTT connectivity which can be used without the involvement of any cloud service. Unfortunately Shelly use a…

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## [IRISS Overtemperature Indicators for cabling](https://community.openenergymonitor.org/t/iriss-overtemperature-indicators-for-cabling/28283)

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**Author:** [@Tango130](https://community.openenergymonitor.org/u/Tango130)\
**Replies:** 0\
**Last updated:** [19 March 2025 08:09 UTC](https://community.openenergymonitor.org/t/iriss-overtemperature-indicators-for-cabling/28283 "2025-03-19T08:09:24Z")

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I’ve finally managed to track down a UK supplier (Rexel Salford) of IRISS Overtemperature Indicators. Been after these for a while as a visual indicator to any potential overheating issues, they turn and remain pink at …

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## [Connecting a DHW cylinder temperature probe to emonHP](https://community.openenergymonitor.org/t/connecting-a-dhw-cylinder-temperature-probe-to-emonhp/25743)

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**Author:** [@guyboltonking](https://community.openenergymonitor.org/u/guyboltonking)\
**Replies:** 2\
**Last updated:** [24 June 2024 13:54 UTC](https://community.openenergymonitor.org/t/connecting-a-dhw-cylinder-temperature-probe-to-emonhp/25743 "2024-06-24T13:54:53Z")

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Hi, I’ve just installed an emonHP Level 3 heatpump monitoring system (very happy so far!). I have a cylinder with temperature probes at the bottom (for solar thermal) and the middle (for the heatpump), but nothing at th…

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## [Third Temp Probe Port not working on emonPi2](https://community.openenergymonitor.org/t/third-temp-probe-port-not-working-on-emonpi2/26268)

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**Author:** [@grod55](https://community.openenergymonitor.org/u/grod55)\
**Replies:** 18\
**Last updated:** [14 June 2024 14:01 UTC](https://community.openenergymonitor.org/t/third-temp-probe-port-not-working-on-emonpi2/26268 "2024-06-14T14:01:25Z")

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I was testing today and the third port (circled below) does not register the temperature probe. I have tried different probes and emonPi2s, and it does not register on any. Further, I tried manually adding the Pro…

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## [Raspberry Pi CPU temperature in Emoncms?](https://community.openenergymonitor.org/t/raspberry-pi-cpu-temperature-in-emoncms/6740)

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**Author:** [@glyn.hudson](https://community.openenergymonitor.org/u/glyn.hudson)\
**Replies:** 11\
**Last updated:** [19 January 2024 11:15 UTC](https://community.openenergymonitor.org/t/raspberry-pi-cpu-temperature-in-emoncms/6740 "2024-01-19T11:15:56Z")

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It’s never been an issue as far an I’m aware, but I’ve recently been asked by a user if the RaspberryPi core temperature could be posted to Emoncms to enable an early warning error to trigger if the core starts to get da…

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## [One of Two Temp Probes not showing up](https://community.openenergymonitor.org/t/one-of-two-temp-probes-not-showing-up/24476)

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**Author:** [@grod55](https://community.openenergymonitor.org/u/grod55)\
**Replies:** 4\
**Last updated:** [27 September 2023 20:49 UTC](https://community.openenergymonitor.org/t/one-of-two-temp-probes-not-showing-up/24476 "2023-09-27T20:49:06Z")

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Hi, I am having a strange issue where only one of my two temperature probes is showing up in emonESP, and therefore only one shows up in emonCMS. My setup is emonTXv4 (wifi version) with 3 CTs and 2 Temp Probes connecte…

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## [Simple python script: OpenWeather Map Temperature to Emoncms.org](https://community.openenergymonitor.org/t/simple-python-script-openweather-map-temperature-to-emoncms-org/20119)

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**Author:** [@glyn.hudson](https://community.openenergymonitor.org/u/glyn.hudson)\
**Replies:** 6\
**Last updated:** [24 July 2022 17:21 UTC](https://community.openenergymonitor.org/t/simple-python-script-openweather-map-temperature-to-emoncms-org/20119 "2022-07-24T17:21:28Z")

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I’ve been doing some testing using data from OpenWeather map and posting to Emoncms.org, here’s a simple script to get current ambient temperature for a particular location and post to emoncms.org. OpenWeather map a fre…

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## [Emoncms Integration with vThing - Air Monitors (CO2, Dust, Temperature, Light)](https://community.openenergymonitor.org/t/emoncms-integration-with-vthing-air-monitors-co2-dust-temperature-light/2367)

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**Author:** [@Vladimir\_Savchenko](https://community.openenergymonitor.org/u/Vladimir_Savchenko)\
**Replies:** 27\
**Last updated:** [20 January 2022 19:49 UTC](https://community.openenergymonitor.org/t/emoncms-integration-with-vthing-air-monitors-co2-dust-temperature-light/2367 "2022-01-20T19:49:13Z")

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Hi Guys, (NB: This post is a bit marketing a device that I am producing and selling. I’ve got @glyn.hudson’s permission to post here) I would like to make you aware of a range of devices that I’ve been developing for t…

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## [Emonth V2 Temperature & Humidity Accuracy - INPUT/FEED Calibration](https://community.openenergymonitor.org/t/emonth-v2-temperature-humidity-accuracy-input-feed-calibration/16957)

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**Author:** [@MikeB](https://community.openenergymonitor.org/u/MikeB)\
**Replies:** 12\
**Last updated:** [22 February 2021 14:37 UTC](https://community.openenergymonitor.org/t/emonth-v2-temperature-humidity-accuracy-input-feed-calibration/16957 "2021-02-22T14:37:53Z")

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I have just received a second Emonth V2 to use with 2 external DS18B20 sensors to monitor my gas boiler in & outlet temperatures. I thought that I would place them next to each other (3cm’s apart) indoors and compare the…

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## [emonTH offline temperature recorder?](https://community.openenergymonitor.org/t/emonth-offline-temperature-recorder/11309)

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**Author:** [@mesocyclone](https://community.openenergymonitor.org/u/mesocyclone)\
**Replies:** 1\
**Last updated:** [3 July 2019 00:22 UTC](https://community.openenergymonitor.org/t/emonth-offline-temperature-recorder/11309 "2019-07-03T00:22:17Z")

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I am interested in using one of my emonTH’s as a temperature logger. BUT… I need it to record temperatures when it has no connection to my emonBase, and then transmit them when it reconnects. Has anyone done code to do …

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## [Temperature value](https://community.openenergymonitor.org/t/temperature-value/10048)

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**Author:** [@Tony](https://community.openenergymonitor.org/u/Tony)\
**Replies:** 14\
**Last updated:** [11 February 2019 22:47 UTC](https://community.openenergymonitor.org/t/temperature-value/10048 "2019-02-11T22:47:54Z")

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I’m just purchased a RJ45 Encapsulated DS18B20 for my emonTx (running the 3-phase sketch) I plugged it in and it’s generally giving weird high values. The room it is in is warm, about 24, but the sensor is reporting arou…

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## [Newbie question: Am I getting correct temperature readings?](https://community.openenergymonitor.org/t/newbie-question-am-i-getting-correct-temperature-readings/9028)

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**Author:** [@anfeot](https://community.openenergymonitor.org/u/anfeot)\
**Replies:** 4\
**Last updated:** [4 November 2018 12:54 UTC](https://community.openenergymonitor.org/t/newbie-question-am-i-getting-correct-temperature-readings/9028 "2018-11-04T12:54:24Z")

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Hello, I have received few days ago an emonTx and an ESP8266 WiFi. After Reading the guides I am able to see the energy consumption for my house :slight\_smile: I have also connected a DS18B20 sensor on RJ45 to the emo…

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## [RTD Temperature sensor module OP problem](https://community.openenergymonitor.org/t/rtd-temperature-sensor-module-op-problem/7747)

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**Author:** [@JohnnyLeone](https://community.openenergymonitor.org/u/JohnnyLeone)\
**Replies:** 3\
**Last updated:** [28 June 2018 08:13 UTC](https://community.openenergymonitor.org/t/rtd-temperature-sensor-module-op-problem/7747 "2018-06-28T08:13:36Z")

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Hello everyone, i’ve built the temperature sensor module with this guide and the linked schematics https://learn.openenergymonitor.org/electricity-monitoring/temperature/rtd-temperature-sensing I have modified the res…

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## [EmonPi Temperature Measurement](https://community.openenergymonitor.org/t/emonpi-temperature-measurement/6792)

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**Author:** [@Robert.Wall](https://community.openenergymonitor.org/u/Robert.Wall)\
**Replies:** 18\
**Last updated:** [16 March 2018 10:31 UTC](https://community.openenergymonitor.org/t/emonpi-temperature-measurement/6792 "2018-03-16T10:31:50Z")

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A little while ago, Paul Burnell ( @pb66 ) noted that the temperature handling in the emonPi is not the same as our present “best practise”. Specifically, it did not return “300” error codes but worse, when I checked K&R…

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## [emonTx V3 Temperature reading 300](https://community.openenergymonitor.org/t/emontx-v3-temperature-reading-300/6588)

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**Author:** [@Heathy65](https://community.openenergymonitor.org/u/Heathy65)\
**Replies:** 5\
**Last updated:** [15 February 2018 18:27 UTC](https://community.openenergymonitor.org/t/emontx-v3-temperature-reading-300/6588 "2018-02-15T18:27:06Z")

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I have a new emontX V3 which I have just installed along with emonBase. The power/voltage is all working fine but the temperature sensor “1 x RJ45 Encapsulated DS18B20” is not working. I’m seeing a value of 300. Any t…

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## [Plugging 7 temperature + 1 pulse sensor to EmonTX 3.4](https://community.openenergymonitor.org/t/plugging-7-temperature-1-pulse-sensor-to-emontx-3-4/3995)

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**Author:** [@Goat](https://community.openenergymonitor.org/u/Goat)\
**Replies:** 12\
**Last updated:** [7 February 2018 00:58 UTC](https://community.openenergymonitor.org/t/plugging-7-temperature-1-pulse-sensor-to-emontx-3-4/3995 "2018-02-07T00:58:22Z")

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Im using emonTX 3.4 with the up to date firmware I bought 7 temp sensors and im looking to plug them all manually, after reading the EmonTX i found out that the breakout board was not available, so i bought myself anoth…

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## [DIY RJ45 breakout](https://community.openenergymonitor.org/t/diy-rj45-breakout/6427)

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**Author:** [@Orionn](https://community.openenergymonitor.org/u/Orionn)\
**Replies:** 3\
**Last updated:** [2 February 2018 03:50 UTC](https://community.openenergymonitor.org/t/diy-rj45-breakout/6427 "2018-02-02T03:50:39Z")

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I have an emonpi, with the bundled temperature sensor and pulse counter. I have made my own RJ45 breakout by just double-jumpering each wire together into two RJ45 “mechs”. I have tested this by running ethernet over eac…

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## [Changed the key name in t1 and can get anr readings](https://community.openenergymonitor.org/t/changed-the-key-name-in-t1-and-can-get-anr-readings/6183)

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**Author:** [@infromatica](https://community.openenergymonitor.org/u/infromatica)\
**Replies:** 5\
**Last updated:** [9 January 2018 16:51 UTC](https://community.openenergymonitor.org/t/changed-the-key-name-in-t1-and-can-get-anr-readings/6183 "2018-01-09T16:51:45Z")

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Doing my initial testings of the emonpi inputs I edited the key value from the original t1 (temperature sensor 1) to temperature and stoped getting any update on the readings. This still happends after change the key val…

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## [US setup, just starting out - temp](https://community.openenergymonitor.org/t/us-setup-just-starting-out-temp/5126)

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**Author:** [@Duncan\_Cunningham](https://community.openenergymonitor.org/u/Duncan_Cunningham)\
**Replies:** 10\
**Last updated:** [21 September 2017 23:19 UTC](https://community.openenergymonitor.org/t/us-setup-just-starting-out-temp/5126 "2017-09-21T23:19:10Z")

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Hello I received my kit yesterday. I have managed to get everything connected and readings from my power and solar are showing up. I might have to do somethings different since I’m on 120Volts but that will be for lat…

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## [Temperature sensor on emonpi shows zero](https://community.openenergymonitor.org/t/temperature-sensor-on-emonpi-shows-zero/5044)

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**Author:** [@MrChoco](https://community.openenergymonitor.org/u/MrChoco)\
**Replies:** 0\
**Last updated:** [8 September 2017 03:13 UTC](https://community.openenergymonitor.org/t/temperature-sensor-on-emonpi-shows-zero/5044 "2017-09-08T03:13:58Z")

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the temperature sensor on my emonpi stopped registering any temperature after i connected an emontx with it’s own temperature sensor. The temp sensor on emontx appears to be registering correctly, but the emonpi temp se…

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## [Daily average temperature virtual feed](https://community.openenergymonitor.org/t/daily-average-temperature-virtual-feed/5009)

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**Author:** [@gmag12](https://community.openenergymonitor.org/u/gmag12)\
**Replies:** 0\
**Last updated:** [4 September 2017 19:16 UTC](https://community.openenergymonitor.org/t/daily-average-temperature-virtual-feed/5009 "2017-09-04T19:16:01Z")

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Hi, I have a bunch of users in a local emonCMS server with some temperature and wattage feeds that I’d like to keep private. I need that they share daily kWh and temperature average publicly. kWh/d is ok for this but I …

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## [Adding Emoncms upload code to Arduino script](https://community.openenergymonitor.org/t/adding-emoncms-upload-code-to-arduino-script/3908)

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**Author:** [@whatsupskip](https://community.openenergymonitor.org/u/whatsupskip)\
**Replies:** 3\
**Last updated:** [5 May 2017 06:02 UTC](https://community.openenergymonitor.org/t/adding-emoncms-upload-code-to-arduino-script/3908 "2017-05-05T06:02:25Z")

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I am looking for a little help and I am a little embarressed I haven’t been able to do this myself. I built this temperature, humidity and pressure system. The stock code works fine, but I wanted to post the data to the…

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## [Multiple temperature sensors on a emonPi?](https://community.openenergymonitor.org/t/multiple-temperature-sensors-on-a-emonpi/2879)

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**Author:** [@hockeyshooter](https://community.openenergymonitor.org/u/hockeyshooter)\
**Replies:** 8\
**Last updated:** [25 January 2017 16:12 UTC](https://community.openenergymonitor.org/t/multiple-temperature-sensors-on-a-emonpi/2879 "2017-01-25T16:12:53Z")

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Just want to check that it is still possible to connect multiple temperature sensors, via an RJ45 Multi Breakout board, to an emon Pi, rather than having to use a Tx as well? I was sure the earlier Pis we bought had an …

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## [Detect if a pump is running?](https://community.openenergymonitor.org/t/detect-if-a-pump-is-running/2120)

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**Author:** [@mattwire](https://community.openenergymonitor.org/u/mattwire)\
**Replies:** 2\
**Last updated:** [10 December 2016 20:14 UTC](https://community.openenergymonitor.org/t/detect-if-a-pump-is-running/2120 "2016-12-10T20:14:35Z")

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I have a project where I would like to detect whether a pump is running in order display where hot water is being transferred from (eg. solar thermal, log burner). There will also be a couple of temperature sensors on t…

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## [API returns "username or password empty" response from localhost](https://community.openenergymonitor.org/t/api-returns-username-or-password-empty-response-from-localhost/1950)

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**Author:** [@Peter\_Beargie](https://community.openenergymonitor.org/u/Peter_Beargie)\
**Replies:** 23\
**Last updated:** [3 November 2016 01:31 UTC](https://community.openenergymonitor.org/t/api-returns-username-or-password-empty-response-from-localhost/1950 "2016-11-03T01:31:43Z")

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I’m trying to send temperature from a DS18S20 sensor information to EMONCMS using a PHP script. The response is always the following json: {“success”:false,“message”:“Username or password empty”} EMONCMS version is: lo…

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## [Odd glitch in temperature data logged to EmonCMS](https://community.openenergymonitor.org/t/odd-glitch-in-temperature-data-logged-to-emoncms/1849)

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**Author:** [@Vster](https://community.openenergymonitor.org/u/Vster)\
**Replies:** 1\
**Last updated:** [15 October 2016 10:29 UTC](https://community.openenergymonitor.org/t/odd-glitch-in-temperature-data-logged-to-emoncms/1849 "2016-10-15T10:29:50Z")

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I recently moved some hardware/code from my old server (which was sending data to emoncms,org) to my Pi (running EmonSD, but still sending data to emoncms.org). The hardware is PIC based module with 10 x DS18B20 temperat…
