# \#sensor **URL:** https://community.openhab.org/tag/sensor/250.md [Latest](https://community.openhab.org/latest.md) · [Categories](https://community.openhab.org/categories.md) · [Tags](https://community.openhab.org/tags.md) --- ## [Cheap door sensor that works well with OH?](https://community.openhab.org/t/cheap-door-sensor-that-works-well-with-oh/163546)
**Author:** [@johnuopini](https://community.openhab.org/u/johnuopini)\ **Replies:** 11\ **Last updated:** [April 9, 2025, 9:26am UTC](https://community.openhab.org/t/cheap-door-sensor-that-works-well-with-oh/163546 "2025-04-09T09:26:34Z")
I need a sensor to detect when I open my washing machine so I can dismiss a reminder. Would be nice to have something that doesn’t require an hub and off course works with OH. Any suggestion? I was thinking about sonoff… --- ## [Virtual solar sensor](https://community.openhab.org/t/virtual-solar-sensor/24705)
**Author:** [@Benoit\_Krings](https://community.openhab.org/u/Benoit_Krings)\ **Replies:** 32\ **Last updated:** [December 7, 2024, 4:48pm UTC](https://community.openhab.org/t/virtual-solar-sensor/24705 "2024-12-07T16:48:05Z")
Hello, I would like to have a virtual solar sensor like : https://www.domoticz.com/wiki/Real-time\_solar\_data\_without\_any\_hardware\_sensor\_:\_azimuth,\_Altitude,\_Lux\_sensor… This is a Lua script. I don’t know if we can ru… --- ## [Can't receive mqtt data from temp/hum sensors](https://community.openhab.org/t/cant-receive-mqtt-data-from-temp-hum-sensors/157649)
**Author:** [@Joao\_Silva](https://community.openhab.org/u/Joao_Silva)\ **Replies:** 7\ **Last updated:** [August 7, 2024, 2:32pm UTC](https://community.openhab.org/t/cant-receive-mqtt-data-from-temp-hum-sensors/157649 "2024-08-07T14:32:01Z")
Hello, New user here. Actually this is my 3rd time trying OpenHab and so far I had given up given its complexity. This time I believe I got good progress but still far from having a useful system, so I’m trying my luck … --- ## [My HABApp Virtual Light Sensor](https://community.openhab.org/t/my-habapp-virtual-light-sensor/156163)
**Author:** [@RRoe](https://community.openhab.org/u/RRoe)\ **Replies:** 2\ **Last updated:** [May 29, 2024, 1:06pm UTC](https://community.openhab.org/t/my-habapp-virtual-light-sensor/156163 "2024-05-29T13:06:00Z")
I know there is an OpenHAB rule template for this, but I prefer to use HABApp Python rules whenever I can. Initially, I created a script inspired by the rule template that relied on the Astro Channel’s total radiation. H… --- ## [Choice of smart home manufacturers and systems](https://community.openhab.org/t/choice-of-smart-home-manufacturers-and-systems/155695)
**Author:** [@T\_M](https://community.openhab.org/u/T_M)\ **Replies:** 8\ **Last updated:** [April 30, 2024, 8:15pm UTC](https://community.openhab.org/t/choice-of-smart-home-manufacturers-and-systems/155695 "2024-04-30T20:15:31Z")
Hey guys, I‘m just starting with my smart home project, and I‘m curious for the long road of smart things/possibilities. I bought a new Raspi 5 / 8GB RAM and imaged the latest OpenHab 4. My WLan-Router is a FritzBox 669… --- ## [Contactless human detector on chair sensor](https://community.openhab.org/t/contactless-human-detector-on-chair-sensor/149114)
**Author:** [@Luca\_Gessi](https://community.openhab.org/u/Luca_Gessi)\ **Replies:** 2\ **Last updated:** [August 27, 2023, 2:32pm UTC](https://community.openhab.org/t/contactless-human-detector-on-chair-sensor/149114 "2023-08-27T14:32:32Z")
Hi everyone. I am developing a sensor for detecting human presence on chair. I know that some attempts have been already made using Aqara board and a pressure sensor on top of the chair, or simply mechanical switches i… --- ## [\[SOLVED\] FIBARO FGDW-002-1 - 24 units bought, 1 returned, 13 not working properly](https://community.openhab.org/t/solved-fibaro-fgdw-002-1-24-units-bought-1-returned-13-not-working-properly/137135)
**Author:** [@pedrolima](https://community.openhab.org/u/pedrolima)\ **Replies:** 5\ **Last updated:** [July 25, 2022, 12:40am UTC](https://community.openhab.org/t/solved-fibaro-fgdw-002-1-24-units-bought-1-returned-13-not-working-properly/137135 "2022-07-25T00:40:47Z")
Hi, I’ve bought on Amazon, 24 units of FIBARO FGDW-002-1. I own a Raspberry Pi 4 8Gb with openHAB 3.3 on a 250GB SSD via USB and I use a Aeotec Gen5+ USB pen for the Z-Wave communications, as well as two Aeotec Range E… --- ## [2,147,483,647 degrees! How to Limit Max value from an HTTP endpont](https://community.openhab.org/t/2-147-483-647-degrees-how-to-limit-max-value-from-an-http-endpont/137174)
**Author:** [@karlfife](https://community.openhab.org/u/karlfife)\ **Replies:** 13\ **Last updated:** [July 8, 2022, 2:24am UTC](https://community.openhab.org/t/2-147-483-647-degrees-how-to-limit-max-value-from-an-http-endpont/137174 "2022-07-08T02:24:02Z")
Occasionally, an HTTP endpoint returns a temperature value of 2,147,483,647. Much hotter than expected, even for mid-July. The number is exactly 2^31, so I presume it’s an erroneous reading (Max Signed Int). Just in c… --- ## [Tasmota SENSOR starts always in "ON" state on Sonoff Basic](https://community.openhab.org/t/tasmota-sensor-starts-always-in-on-state-on-sonoff-basic/128034)
**Author:** [@pking](https://community.openhab.org/u/pking)\ **Replies:** 2\ **Last updated:** [October 28, 2021, 11:51pm UTC](https://community.openhab.org/t/tasmota-sensor-starts-always-in-on-state-on-sonoff-basic/128034 "2021-10-28T23:51:12Z")
Hi All, maybe i just dont get it , but i subscribe to a basic contact(reed) connected to a Sonoff Basic RF R2. The switch/contact is set on GPIO3 and working half fine. See console output of Tasmota below: So far s… --- ## [Value for Humidity from MQTT divided by 100](https://community.openhab.org/t/value-for-humidity-from-mqtt-divided-by-100/125304)
**Author:** [@javamaster10000](https://community.openhab.org/u/javamaster10000)\ **Replies:** 10\ **Last updated:** [August 10, 2021, 11:48pm UTC](https://community.openhab.org/t/value-for-humidity-from-mqtt-divided-by-100/125304 "2021-08-10T23:48:34Z")
Using OpenHabian on RPi4 Hello there, I have setup an ESP32 to publish Humidity Values as percentage values via MQTT. The values look absolutely fine, getting displayed as 59.00 in MQTT Explorer. BUT… In Openhab, the v… --- ## [NodeMCU based MQTT multi-sensor with OLED display](https://community.openhab.org/t/nodemcu-based-mqtt-multi-sensor-with-oled-display/34509)
**Author:** [@bartus](https://community.openhab.org/u/bartus)\ **Replies:** 110\ **Last updated:** [April 12, 2021, 2:07pm UTC](https://community.openhab.org/t/nodemcu-based-mqtt-multi-sensor-with-oled-display/34509 "2021-04-12T14:07:27Z")
Earlier this year, I published a project I was working on, a general purpose NodeMCU breakout board (Multi-purpose NodeMCU breakout PCB). I designed this board to securely carry a NodeMCU board, a 4-channel level shifter… --- ## [Shelly H&T Sensor have a too long value/result at temperature and humidity](https://community.openhab.org/t/shelly-h-t-sensor-have-a-too-long-value-result-at-temperature-and-humidity/120382)
**Author:** [@FunnyFlow](https://community.openhab.org/u/FunnyFlow)\ **Replies:** 2\ **Last updated:** [April 7, 2021, 4:53pm UTC](https://community.openhab.org/t/shelly-h-t-sensor-have-a-too-long-value-result-at-temperature-and-humidity/120382 "2021-04-07T16:53:41Z")
Hello, I am new at openHAB and hope any one can help me. Can I short this result at the code? My setup: openHAB 3.0.1 binding-shelly code from Pages: component: oh-label-card config: trendItem: WohnzimmerHT\_Te… --- ## [openHAB friendly Motion Sensor Suggestions](https://community.openhab.org/t/openhab-friendly-motion-sensor-suggestions/63067)
**Author:** [@Andrew\_Rowe](https://community.openhab.org/u/Andrew_Rowe)\ **Replies:** 69\ **Last updated:** [April 3, 2021, 11:58pm UTC](https://community.openhab.org/t/openhab-friendly-motion-sensor-suggestions/63067 "2021-04-03T23:58:24Z")
This is a thread I started about motion sensors that work well with OpenHAB2. Here is most the original post: Hope to get some help picking out new \[motion sensors\] from people who have had good experiences with any pa… --- ## [Homekit :: ContactSensor :: Inverted](https://community.openhab.org/t/homekit-contactsensor-inverted/117625)
**Author:** [@vlas](https://community.openhab.org/u/vlas)\ **Replies:** 7\ **Last updated:** [February 23, 2021, 7:49am UTC](https://community.openhab.org/t/homekit-contactsensor-inverted/117625 "2021-02-23T07:49:50Z")
Hi OpenHab, Could we please consider the same change as it was done for Lock accessory here (\[OpenHab 3.0.1\] - Invert Locks - HomeKit) for ContactSensor type as well. I have dry contacts which indicate open/closed and … --- ## [The 10$ Gocomma Wifi Door Sensor on Gearbest seems to use ESP8266](https://community.openhab.org/t/the-10-gocomma-wifi-door-sensor-on-gearbest-seems-to-use-esp8266/57405)
**Author:** [@openboy](https://community.openhab.org/u/openboy)\ **Replies:** 6\ **Last updated:** [December 10, 2018, 11:18am UTC](https://community.openhab.org/t/the-10-gocomma-wifi-door-sensor-on-gearbest-seems-to-use-esp8266/57405 "2018-12-10T11:18:32Z")
I was searching around HA products on Chinese sites and I found this Wifi Door reed sensor on Sale by a company called GoComma. I noticed that it has ESP82\*6 in the chip on the Screenshots. The \* part looks like thier 5… --- ## [DIY temperature, hygrometer and humidity waterproof sensor 433Mhz low cost low power](https://community.openhab.org/t/diy-temperature-hygrometer-and-humidity-waterproof-sensor-433mhz-low-cost-low-power/13135)
**Author:** [@1technophile](https://community.openhab.org/u/1technophile)\ **Replies:** 4\ **Last updated:** [December 7, 2020, 10:39am UTC](https://community.openhab.org/t/diy-temperature-hygrometer-and-humidity-waterproof-sensor-433mhz-low-cost-low-power/13135 "2020-12-07T10:39:39Z")
I have build an external waterproof sensor integrated with openhab based on Atmega328p (arduino heart). Main characteristic is low power (6 micro amps when not sending data) which theoreticaly give a life of around 8 ye… --- ## [Light control with outdoor sensor](https://community.openhab.org/t/light-control-with-outdoor-sensor/108560)
**Author:** [@marsman147](https://community.openhab.org/u/marsman147)\ **Replies:** 4\ **Last updated:** [November 19, 2020, 4:46pm UTC](https://community.openhab.org/t/light-control-with-outdoor-sensor/108560 "2020-11-19T16:46:50Z")
I would like to be able to control my light in the apartment depending on the daylight. What kind of sensor do you use for this? A daylight sensor that is suitable for outdoor use? I find the Homematic IP (HmIP-SLO) int… --- ## [Ecobee using other sensor data](https://community.openhab.org/t/ecobee-using-other-sensor-data/42588)
**Author:** [@hardyh](https://community.openhab.org/u/hardyh)\ **Replies:** 9\ **Last updated:** [November 14, 2020, 3:46pm UTC](https://community.openhab.org/t/ecobee-using-other-sensor-data/42588 "2020-11-14T15:46:24Z")
Has anyone using an ecobee figured out a way to feed your thermostat sensor data from your own sources rather than just the ecobee sensors? For example, I would like to use a motion/temp sensor in our office instead of… --- ## [Simple sensor alive monitoring solution using rules](https://community.openhab.org/t/simple-sensor-alive-monitoring-solution-using-rules/106228)
**Author:** [@Jan221](https://community.openhab.org/u/Jan221)\ **Replies:** 6\ **Last updated:** [October 13, 2020, 6:36pm UTC](https://community.openhab.org/t/simple-sensor-alive-monitoring-solution-using-rules/106228 "2020-10-13T18:36:47Z")
Hi, In this thread I want to share my solution for sensor ‘alive’ or sensor ‘heartbeat’ monitoring. Preface The initial trigger for this was a failure of my zwave stick. It stopped working for any reason. Because of th… --- ## [Sensor to detect if TV is on](https://community.openhab.org/t/sensor-to-detect-if-tv-is-on/105385)
**Author:** [@KidSquid](https://community.openhab.org/u/KidSquid)\ **Replies:** 10\ **Last updated:** [September 28, 2020, 3:44am UTC](https://community.openhab.org/t/sensor-to-detect-if-tv-is-on/105385 "2020-09-28T03:44:26Z")
I’m looking for the best option for a sensor which can tell me if a tv set is turned on. My initial thought was to use a wifi or zwave outlet with power monitoring to read the amount of electricity being used…look for t… --- ## [Cloud Plant DB with API for plant sensors](https://community.openhab.org/t/cloud-plant-db-with-api-for-plant-sensors/105569)
**Author:** [@slaxor](https://community.openhab.org/u/slaxor)\ **Replies:** 0\ **Last updated:** [September 26, 2020, 11:08am UTC](https://community.openhab.org/t/cloud-plant-db-with-api-for-plant-sensors/105569 "2020-09-26T11:08:55Z")
Hi guys, Please redirect me if I’m posting this into wrong place of this forum. I hope that this can be useful for OpenHAB developers who is interested into plant sensors and monitoring. I’m working on a cloud Plants D… --- ## [DIY: Cheap wifi-based temperature/humidity sensor based on ESP8266 & DHT22](https://community.openhab.org/t/diy-cheap-wifi-based-temperature-humidity-sensor-based-on-esp8266-dht22/2746)
**Author:** [@gonium](https://community.openhab.org/u/gonium)\ **Replies:** 85\ **Last updated:** [September 15, 2020, 3:22pm UTC](https://community.openhab.org/t/diy-cheap-wifi-based-temperature-humidity-sensor-based-on-esp8266-dht22/2746 "2020-09-15T15:22:22Z")
Hi, just completed my first hardware project for my OpenHAB setup: A simple and cheap wifi sensor for temperature and humidity. This is how the sensor data looks in the classic UI: Look for “Temperatur” and “Luftfeuc… --- ## [Transfer Data from one RaspberryPi to another RaspberryPi (Python Ultrasonic Sensor)](https://community.openhab.org/t/transfer-data-from-one-raspberrypi-to-another-raspberrypi-python-ultrasonic-sensor/101320)
**Author:** [@formicula1979](https://community.openhab.org/u/formicula1979)\ **Replies:** 8\ **Last updated:** [June 26, 2020, 5:27am UTC](https://community.openhab.org/t/transfer-data-from-one-raspberrypi-to-another-raspberrypi-python-ultrasonic-sensor/101320 "2020-06-26T05:27:01Z")
Platform information: Raspberry Pi 3 Model B Rev 1.2 OS: openHABian openHAB version: openHAB 2.5.1-2 I am running my openHAB on a RaspberryPi 3 and everything is fine so far. Now I’ve got a second RaspberryPi in m… --- ## [Grohe Sense Ondus Binding?](https://community.openhab.org/t/grohe-sense-ondus-binding/33814)
**Author:** [@schneutz](https://community.openhab.org/u/schneutz)\ **Replies:** 11\ **Last updated:** [June 15, 2020, 7:14am UTC](https://community.openhab.org/t/grohe-sense-ondus-binding/33814 "2020-06-15T07:14:00Z")
I’m concidering to buy a GROHE Sense watersensor. Together with the Grohe Ondus App it promises to track temperature and send alarm push notifications when detecting water. Is anyone aware of a binding which would suppor… --- ## [Reading a 4 Byte value from a sensor using KNX](https://community.openhab.org/t/reading-a-4-byte-value-from-a-sensor-using-knx/99481)
**Author:** [@joerg\_asma](https://community.openhab.org/u/joerg_asma)\ **Replies:** 14\ **Last updated:** [May 26, 2020, 5:32pm UTC](https://community.openhab.org/t/reading-a-4-byte-value-from-a-sensor-using-knx/99481 "2020-05-26T17:32:01Z")
Hi all, I built in a KNX device SO250 from Elsner that measures my water level in a tank. It works ok and puts the right values on the bus which I can see with the busmonitor. It delivers 7 values: 5 thresholds, 1 Soft… --- ## [bluSensor](https://community.openhab.org/t/blusensor/87764)
**Author:** [@petero](https://community.openhab.org/u/petero)\ **Replies:** 8\ **Last updated:** [January 8, 2020, 4:35pm UTC](https://community.openhab.org/t/blusensor/87764 "2020-01-08T16:35:31Z")
I have just found this sensor on Kickstarter. It supports local access and MQTT so seems perfect for openHAB. It is a small usb powered air quality sensor. https://www.kickstarter.com/projects/blusensor/blusensor-aiq-t… --- ## [Extreme Variations of Temperature and how to deal with it](https://community.openhab.org/t/extreme-variations-of-temperature-and-how-to-deal-with-it/89082)
**Author:** [@David\_deMarco](https://community.openhab.org/u/David_deMarco)\ **Replies:** 5\ **Last updated:** [January 4, 2020, 3:38pm UTC](https://community.openhab.org/t/extreme-variations-of-temperature-and-how-to-deal-with-it/89082 "2020-01-04T15:38:51Z")
So first off. I live in Sydney and right now our Volunteer Rural Fire Team are doing an amazing job of trying to control all the forest fires we have around us. The fires have been going on for months now and the so mu… --- ## [\[SOLVED\] Google Assistant responding to question about garage door](https://community.openhab.org/t/solved-google-assistant-responding-to-question-about-garage-door/46738)
**Author:** [@Peter\_Boivin](https://community.openhab.org/u/Peter_Boivin)\ **Replies:** 11\ **Last updated:** [August 26, 2019, 6:08am UTC](https://community.openhab.org/t/solved-google-assistant-responding-to-question-about-garage-door/46738 "2019-08-26T06:08:49Z")
I have been able to create a rule that Google Assistant will tell me if my garage door is open. I will be traveling for a few weeks this summer. I want to be able to ask Google Assistant from my phone if the the garage… --- ## [Battery powered light sensor](https://community.openhab.org/t/battery-powered-light-sensor/75512)
**Author:** [@YuvalWS](https://community.openhab.org/u/YuvalWS)\ **Replies:** 2\ **Last updated:** [June 23, 2019, 6:05am UTC](https://community.openhab.org/t/battery-powered-light-sensor/75512 "2019-06-23T06:05:43Z")
Hi, I have searched the web for a Battery powered light sensors and didn’t find anything. all I could find were some all-in-one sensor hubs that require constant power (e.g. Shelly Sense or Broadlink A1). is there any … --- ## [Multi-purpose NodeMCU breakout PCB](https://community.openhab.org/t/multi-purpose-nodemcu-breakout-pcb/19507)
**Author:** [@bartus](https://community.openhab.org/u/bartus)\ **Replies:** 4\ **Last updated:** [March 27, 2019, 1:39am UTC](https://community.openhab.org/t/multi-purpose-nodemcu-breakout-pcb/19507 "2019-03-27T01:39:29Z")
Sharing this in case someone finds it useful. I designed a simple breakout board for the NodeMCU v0.9/v1.0 ESP8266 dev board, to allow me to build self-contained temp/humidity sensors for my openHAB setup. I originally u… [Next page](https://community.openhab.org/tag/sensor/250.md?match_all_tags=true&page=1&tags%5B%5D=sensor)