# Latest **URL:** https://forum.sensor.community/latest.md [Latest](https://forum.sensor.community/latest.md) · [Categories](https://forum.sensor.community/categories.md) --- ## [Welcome to Discourse](https://forum.sensor.community/t/welcome-to-discourse/7)
**Author:** [@system](https://forum.sensor.community/u/system)\ **Replies:** 3\ **Last updated:** [March 7, 2025, 1:31pm UTC](https://forum.sensor.community/t/welcome-to-discourse/7 "2025-03-07T13:31:36Z")
The Sensor.Community forum is your first place for discussions about new sensors and features and for help with technical problems. --- ## [README: when you see “Your sensor ID is already registered”](https://forum.sensor.community/t/readme-when-you-see-your-sensor-id-is-already-registered/7050)
**Author:** [@metron6](https://forum.sensor.community/u/metron6)\ **Replies:** 14\ **Last updated:** [September 24, 2026, 1:50am UTC](https://forum.sensor.community/t/readme-when-you-see-your-sensor-id-is-already-registered/7050 "2026-09-24T01:50:37Z")
When you try to register your sensor and see the message: “Your sensor ID is already registered” This means your sensor ID already exists in the database. Common reasons are: You registered it before and deleted it,… --- ## [Export / Download all sensor data](https://forum.sensor.community/t/export-download-all-sensor-data/8436)
**Author:** [@Hans](https://forum.sensor.community/u/Hans)\ **Replies:** 3\ **Last updated:** [September 21, 2026, 10:55am UTC](https://forum.sensor.community/t/export-download-all-sensor-data/8436 "2026-09-21T10:55:23Z")
Hi everyone, I recently moved but wanted to leave a copy and a plot of the air quality of my previous apartment at the Wiki of my previous house. However I cannot figure out how to download the raw data. This is the mad… --- ## [Sensor ID is already registered](https://forum.sensor.community/t/sensor-id-is-already-registered/2016)
**Author:** [@LeGrenier](https://forum.sensor.community/u/LeGrenier)\ **Replies:** 274\ **Last updated:** [September 18, 2026, 10:35pm UTC](https://forum.sensor.community/t/sensor-id-is-already-registered/2016 "2026-09-18T22:35:05Z")
Hello, when I try to register my sensor, I have a message saying “sensor ID is already registered”. I do not know who uses the same ID and how to contact him. I already sent an email to tech@sensor.community but no rep… --- ## [BME280 data not send through](https://forum.sensor.community/t/bme280-data-not-send-through/8433)
**Author:** [@Groningen\_West](https://forum.sensor.community/u/Groningen_West)\ **Replies:** 4\ **Last updated:** [September 15, 2026, 3:28pm UTC](https://forum.sensor.community/t/bme280-data-not-send-through/8433 "2026-09-15T15:28:47Z")
L.S., For some reason PM data (SDS011) is recieved and shown at Samen Meten - Dataportaal, but BME280 data is not. While it shows here at sensor.community. Is this normal, as I see some at Samen Meten - Dataportaal tha… --- ## [Sensor.community KIT from NETTIGO with HECA KIT](https://forum.sensor.community/t/sensor-community-kit-from-nettigo-with-heca-kit/8435)
**Author:** [@zzzs](https://forum.sensor.community/u/zzzs)\ **Replies:** 1\ **Last updated:** [September 15, 2026, 3:25pm UTC](https://forum.sensor.community/t/sensor-community-kit-from-nettigo-with-heca-kit/8435 "2026-09-15T15:25:32Z")
Hi everyone. I bought a Sensor.community kit from Nettigo, but during the first rain, the PM readings shot through the roof. So, I decided to buy the HECA kit as well. Am I correct in understanding that I don’t need to c… --- ## [I accidentally deleted my indoor sensor](https://forum.sensor.community/t/i-accidentally-deleted-my-indoor-sensor/8395)
**Author:** [@Jos\_Jacobs](https://forum.sensor.community/u/Jos_Jacobs)\ **Replies:** 3\ **Last updated:** [September 10, 2026, 5:34am UTC](https://forum.sensor.community/t/i-accidentally-deleted-my-indoor-sensor/8395 "2026-09-10T05:34:56Z")
Hi, I can’t register my sensor again as I accidentally deleted it. ID is esp8266-14950228. Hope you can help. Kind regards Jos Jacobs --- ## [Changing location of a sensor on devices.sensor.community/sensors](https://forum.sensor.community/t/changing-location-of-a-sensor-on-devices-sensor-community-sensors/1185)
**Author:** [@Nino](https://forum.sensor.community/u/Nino)\ **Replies:** 13\ **Last updated:** [September 6, 2026, 6:31pm UTC](https://forum.sensor.community/t/changing-location-of-a-sensor-on-devices-sensor-community-sensors/1185 "2026-09-06T18:31:30Z")
A colleague of mine wanted to transfer a sensor to another location by first removing or de-registering the sensor from the site, and then re-registering it to the new location. In re-registering the sensor, he gets the… --- ## [Gehäuse für AirRohr](https://forum.sensor.community/t/gehause-fur-airrohr/8293)
**Author:** [@Michael\_P](https://forum.sensor.community/u/Michael_P)\ **Replies:** 2\ **Last updated:** [August 31, 2026, 11:27pm UTC](https://forum.sensor.community/t/gehause-fur-airrohr/8293 "2026-08-31T23:27:29Z")
Hallo, ich habe ein Gehäuse zum drucken entworfen, welches schöner und kleiner ist, als die Lösung Mittels KG-Rohr! https://makerworld.com/de/models/2446821-particulate-matter-sensor-housing-airrohr-sensor-c?from=searc… --- ## [Hand over sensor, new owner didn't receive email](https://forum.sensor.community/t/hand-over-sensor-new-owner-didnt-receive-email/8428)
**Author:** [@gbaalderink](https://forum.sensor.community/u/gbaalderink)\ **Replies:** 6\ **Last updated:** [August 31, 2026, 7:47am UTC](https://forum.sensor.community/t/hand-over-sensor-new-owner-didnt-receive-email/8428 "2026-08-31T07:47:37Z")
Hi @ricki-z, could you help me to hand over sensor “airRohr-11167023” with transfer code: 143faff5fd7a to account “fijnstofmeter” or send transfer email again to email fijnstofmeter@osinit.nl Thx. GBA --- ## [Hts221 + lps25h](https://forum.sensor.community/t/hts221-lps25h/8429)
**Author:** [@v6tunnler](https://forum.sensor.community/u/v6tunnler)\ **Replies:** 1\ **Last updated:** [August 17, 2026, 1:25pm UTC](https://forum.sensor.community/t/hts221-lps25h/8429 "2026-08-17T13:25:35Z")
Please add the following sensors to the WebGUI: HTS221 (temperature & humidity) and LPS25H (air pressure). Thank you. --- ## [Can not add second (or more) sensors after deleting it once](https://forum.sensor.community/t/can-not-add-second-or-more-sensors-after-deleting-it-once/550)
**Author:** [@NicZer0](https://forum.sensor.community/u/NicZer0)\ **Replies:** 36\ **Last updated:** [August 10, 2026, 9:34pm UTC](https://forum.sensor.community/t/can-not-add-second-or-more-sensors-after-deleting-it-once/550 "2026-08-10T21:34:33Z")
Hi there, I added my sensor recently with a SDS PM sensor only. In the configuration tab I deleted the second sensor (condition snesor) as I had non attached back that time. Now, I’d like to have this one back as I adde… --- ## [New beta firmware](https://forum.sensor.community/t/new-beta-firmware/8422)
**Author:** [@ricki-z](https://forum.sensor.community/u/ricki-z)\ **Replies:** 1\ **Last updated:** [August 6, 2026, 11:34am UTC](https://forum.sensor.community/t/new-beta-firmware/8422 "2026-08-06T11:34:34Z")
Today we will release the new beta firmware version. Beside some cleanup and changed translations there is the support for the new openSenseMap version (“support openSenseMap device API keys”, which will become the defa… --- ## [Support for IPv6](https://forum.sensor.community/t/support-for-ipv6/2769)
**Author:** [@PA0MMV](https://forum.sensor.community/u/PA0MMV)\ **Replies:** 37\ **Last updated:** [August 5, 2026, 7:41pm UTC](https://forum.sensor.community/t/support-for-ipv6/2769 "2026-08-05T19:41:43Z")
Hello I have a sensor up and running since May 1st and I am impressed. But there is one thing that disappoints me: it does not support IPv6! IPv6 has been around everywhere for well over a decade now and IMNSHO it can… --- ## [I accidentally deleted my sensor and now I can’t register it again](https://forum.sensor.community/t/i-accidentally-deleted-my-sensor-and-now-i-can-t-register-it-again/8381)
**Author:** [@Damian](https://forum.sensor.community/u/Damian)\ **Replies:** 6\ **Last updated:** [July 29, 2026, 5:55am UTC](https://forum.sensor.community/t/i-accidentally-deleted-my-sensor-and-now-i-can-t-register-it-again/8381 "2026-07-29T05:55:25Z")
Hello, I accidentally deleted my sensor and now I can’t register it again. Could you please release the Sensor ID / ChipID or restore the registration? Sensor ID / ChipID: 6784409 Board: ESP8266 Thank you! --- ## [Android application for sensor.community](https://forum.sensor.community/t/android-application-for-sensor-community/6976)
**Author:** [@saiinc](https://forum.sensor.community/u/saiinc)\ **Replies:** 2\ **Last updated:** [July 25, 2026, 1:37pm UTC](https://forum.sensor.community/t/android-application-for-sensor-community/6976 "2026-07-25T13:37:00Z")
I am currently developing an android app that uses the sensor.community API I’ve long wanted to display the sensors I need in a dashboard format. Also, to have quick access to the values from my own sensor. Sens… --- ## [Deleted Sensor Mistakenly](https://forum.sensor.community/t/deleted-sensor-mistakenly/1432)
**Author:** [@zrrh](https://forum.sensor.community/u/zrrh)\ **Replies:** 98\ **Last updated:** [July 23, 2026, 7:14pm UTC](https://forum.sensor.community/t/deleted-sensor-mistakenly/1432 "2026-07-23T19:14:27Z")
Hi, I deleted my sensor by mistake and I cannot register it again - how can I register it and upload my data? Thanks :slight\_smile: --- ## [Oled display anschließen wo?](https://forum.sensor.community/t/oled-display-anschliessen-wo/8420)
**Author:** [@luftikus](https://forum.sensor.community/u/luftikus)\ **Replies:** 2\ **Last updated:** [July 23, 2026, 9:16am UTC](https://forum.sensor.community/t/oled-display-anschliessen-wo/8420 "2026-07-23T09:16:58Z")
Auf der Weboberfläche kann man unter Konfiguration Oled Display auswählen. An welche Pins müssen SCL und SDA angeschlossen werden? Oder funktioniert es gar nicht? --- ## [Sound/noise measurement project in Den Haag, Netherlands](https://forum.sensor.community/t/sound-noise-measurement-project-in-den-haag-netherlands/8421)
**Author:** [@bertrik](https://forum.sensor.community/u/bertrik)\ **Replies:** 0\ **Last updated:** [July 18, 2026, 8:40pm UTC](https://forum.sensor.community/t/sound-noise-measurement-project-in-den-haag-netherlands/8421 "2026-07-18T20:40:53Z")
Hi, I noticed this news article about a plan to find 100 people to do noise measurements in the city of Den Haag, Netherlands: Geluid in de stad meten? Vraag een meetapparaat aan - Den Haag Did you hear about this? Per… --- ## [Reset Sendor Ricki-z](https://forum.sensor.community/t/reset-sendor-ricki-z/8419)
**Author:** [@mayflyseason](https://forum.sensor.community/u/mayflyseason)\ **Replies:** 0\ **Last updated:** [July 12, 2026, 5:54pm UTC](https://forum.sensor.community/t/reset-sendor-ricki-z/8419 "2026-07-12T17:54:27Z")
Hello, This post is for Ricki-z I accidentally deleted my sensor and now I cannot register it again because it says “This sensor is already registered.” Could you please restore or release my ChipID? ChipID: esp8266-… --- ## [Need help wiring Sensirion SPS30 to NodeMCU ESP8266 (AirRohr firmware)](https://forum.sensor.community/t/need-help-wiring-sensirion-sps30-to-nodemcu-esp8266-airrohr-firmware/8378)
**Author:** [@Michael](https://forum.sensor.community/u/Michael)\ **Replies:** 5\ **Last updated:** [July 8, 2026, 2:46pm UTC](https://forum.sensor.community/t/need-help-wiring-sensirion-sps30-to-nodemcu-esp8266-airrohr-firmware/8378 "2026-07-08T14:46:58Z")
Hi everyone, I’m currently trying to set up an air quality monitoring system using a NodeMCU ESP8266 V3 and a Sensirion SPS30 fine dust sensor. I have already flashed the firmware using the AirRohr flashing tool, and n… --- ## [Grafana and sensor.community](https://forum.sensor.community/t/grafana-and-sensor-community/8412)
**Author:** [@tfauck](https://forum.sensor.community/u/tfauck)\ **Replies:** 1\ **Last updated:** [July 2, 2026, 9:15am UTC](https://forum.sensor.community/t/grafana-and-sensor-community/8412 "2026-07-02T09:15:28Z")
I found that some station were referenced on Grafana butnot on sensor.community. Is there a way to get active station on Grafana (as it is available on sensor.community) ? If we want to superpose multiple graph (so mult… --- ## [Airrohr firmware beta feature for testing integration into new version of openSenseMap?](https://forum.sensor.community/t/airrohr-firmware-beta-feature-for-testing-integration-into-new-version-of-opensensemap/8411)
**Author:** [@sven](https://forum.sensor.community/u/sven)\ **Replies:** 0\ **Last updated:** [June 29, 2026, 11:34am UTC](https://forum.sensor.community/t/airrohr-firmware-beta-feature-for-testing-integration-into-new-version-of-opensensemap/8411 "2026-06-29T11:34:58Z")
Hallo everyone! This is Sven and I’m part of the team running the openSenseMap. :slight\_smile: The openSenseMap also provides an integration for the Sensor.Community (resp. Luftdaten Info)-devices. We are currently deve… --- ## [Calibration of Humidity (BME280)](https://forum.sensor.community/t/calibration-of-humidity-bme280/2680)
**Author:** [@Andrix](https://forum.sensor.community/u/Andrix)\ **Replies:** 5\ **Last updated:** [June 28, 2026, 3:55pm UTC](https://forum.sensor.community/t/calibration-of-humidity-bme280/2680 "2026-06-28T15:55:28Z")
Hello world! I’m happy to be in this community since few weeks! I’ve a question related to the calibration of the T&H sensor. I already read this thread: and from it I took some useful information. I’m not complaini… --- ## [Sensor not sending data after hardware change (DHT22 + BME280)](https://forum.sensor.community/t/sensor-not-sending-data-after-hardware-change-dht22-bme280/8405)
**Author:** [@HC-65](https://forum.sensor.community/u/HC-65)\ **Replies:** 2\ **Last updated:** [June 25, 2026, 8:40am UTC](https://forum.sensor.community/t/sensor-not-sending-data-after-hardware-change-dht22-bme280/8405 "2026-06-25T08:40:38Z")
Hello everyone, I’m having an issue with my sensor setup and hope someone can help. Recently, I replaced my DHT22 sensor and additionally added a BME280 sensor. Since making these changes, my device is no longer transm… --- ## [Sensmos Local-first ESP32 firmware with Home Assistant integration & anti-sybil validation \[Looking for Alpha Testers\]](https://forum.sensor.community/t/sensmos-local-first-esp32-firmware-with-home-assistant-integration-anti-sybil-validation-looking-for-alpha-testers/8403)
**Author:** [@Galusz](https://forum.sensor.community/u/Galusz)\ **Replies:** 0\ **Last updated:** [June 18, 2026, 6:22pm UTC](https://forum.sensor.community/t/sensmos-local-first-esp32-firmware-with-home-assistant-integration-anti-sybil-validation-looking-for-alpha-testers/8403 "2026-06-18T18:22:54Z")
Hi everyone, First of all, huge respect for what Sensor.Community has built. The density of your network is amazing. I’ve been working on a solo side-project called Sensmos that approaches crowd-sourced sensing from a … --- ## [Radioactivity on sensor.community map?](https://forum.sensor.community/t/radioactivity-on-sensor-community-map/8233)
**Author:** [@Deedee](https://forum.sensor.community/u/Deedee)\ **Replies:** 16\ **Last updated:** [June 9, 2026, 7:21pm UTC](https://forum.sensor.community/t/radioactivity-on-sensor-community-map/8233 "2026-06-09T19:21:41Z")
Hi, apart from my sensors for air quality and noise I have a multigeiger for measuring background radiation. The multigeiger had to be registered in devices.sensor.community and the values show up in archive.sensor.commu… --- ## [Android App no more available?](https://forum.sensor.community/t/android-app-no-more-available/8386)
**Author:** [@CasaviaDiaz](https://forum.sensor.community/u/CasaviaDiaz)\ **Replies:** 5\ **Last updated:** [June 8, 2026, 6:30pm UTC](https://forum.sensor.community/t/android-app-no-more-available/8386 "2026-06-08T18:30:45Z")
Hi everyone, I have a sensor in Trieste on my terrace facing the beautiful Adriatc see ubut too many cruiseships, also. I changed mobile phone and I see the Android app “Luftdaten” is no more available on Google Play. I … --- ## [Air360: firmware and hardware path compatible with Sensor.Community](https://forum.sensor.community/t/air360-firmware-and-hardware-path-compatible-with-sensor-community/8394)
**Author:** [@serber](https://forum.sensor.community/u/serber)\ **Replies:** 0\ **Last updated:** [June 5, 2026, 12:18pm UTC](https://forum.sensor.community/t/air360-firmware-and-hardware-path-compatible-with-sensor-community/8394 "2026-06-05T12:18:24Z")
Hi everyone! I want to share a project i have been working on last months - Air360 The goal is simple: i would like to refresh the original air quality sensor idea and give it a new development push with a more modern … --- ## [Sensor not available - try to register - sensor ID is already registered](https://forum.sensor.community/t/sensor-not-available-try-to-register-sensor-id-is-already-registered/8390)
**Author:** [@Wieldable](https://forum.sensor.community/u/Wieldable)\ **Replies:** 0\ **Last updated:** [May 25, 2026, 2:09pm UTC](https://forum.sensor.community/t/sensor-not-available-try-to-register-sensor-id-is-already-registered/8390 "2026-05-25T14:09:55Z")
Hi, I haven´t used my sensor a few years because I had technical problems. By now I solved these problems after moving to another city. I wanted to change the location of my device in my account. But there was no devic… [Next page](https://forum.sensor.community/latest.md?page=1)