#bme680 — Public Fediverse posts

After all this time fiddling with my DIY air quality sensor, I’m still not sure how to read the sensor readings

Here a little bit about today’s adventure

today’s context

I am sitting on the train and the car is mostly full (about 30 adults). We’ve been at full speed for a good twenty minutes, so anything that needed to settle surely has by now. The train itself was put in service last year or whereabouts, so it’s neither brand new nor crumbling old.

The BME680 sensor I’m using has a three minute self calibration sequence that simply won’t give any readings. Anything I get is after 300s.

sensor readings and doubts

My issue is that at 14 minutes into the ride, the readings were still unsettled. Is that due to the train moving? The sensor not having enough air flow during its startup sequence to calibrate correctly?

At 24 minutes into the ride, the values look suspiciously like default values. Temperature at a steady 25, VOC reading near 25.0 and eCO2 at 500 (give or take a few units).

pressure readings make me more confident

I noticed the pressure sensor reads somewhat different values, sometimes 80 Pa difference in a few seconds even though we are at a steady pace, apparently on even ground, and the weather doesn’t appear to change. But it is very cloudy outside so who knows, maybe our speed causes us to go through more local weather differences than I realize.

However, when the train slows to a crawl, the pressure readings stabilize a lot. They start fluctuating again after we picked up some speed.

the end

I don’t quite understand the sensor’s fondness for eCO2 values so close to the 500 mark. This is a train car full of people, possibly with a working ventilation and filtering system, but I didn’t expect near-perfect or steady readings (for half an hour now).

#bme680 #esp8266 #diyAirQualityMonitor

Artikel-Update:

I2C-#Sensoren am #Elecrow #LoRaWAN #LR1262 Dev.-Board mit #Raspi-Pico 2040

ergänzt: Sensoren #BME280 und #BME680

--> https://cool-web.de/raspberry/elecrow-rp2040-sx1262-lorawan-development-board-i2c-sensors-bmp280.htm

#LoRa #Bosch #Sensortec #BMP280 #RaspberryPi #Raspi #PiPico #RP2040 #Elektronik #Maker #DIY #Microcontroller #Elecrow

Artikel-Update:

I2C-#Sensoren am #Elecrow #LoRaWAN #LR1262 Dev.-Board mit #Raspi-Pico 2040

ergänzt: Sensoren #BME280 und #BME680

--> https://cool-web.de/raspberry/elecrow-rp2040-sx1262-lorawan-development-board-i2c-sensors-bmp280.htm

#LoRa #Bosch #Sensortec #BMP280 #RaspberryPi #Raspi #PiPico #RP2040 #Elektronik #Maker #DIY #Microcontroller #Elecrow

Artikel-Update:

I2C-#Sensoren am #Elecrow #LoRaWAN #LR1262 Dev.-Board mit #Raspi-Pico 2040

ergänzt: Sensoren #BME280 und #BME680

--> https://cool-web.de/raspberry/elecrow-rp2040-sx1262-lorawan-development-board-i2c-sensors-bmp280.htm

#LoRa #Bosch #Sensortec #BMP280 #RaspberryPi #Raspi #PiPico #RP2040 #Elektronik #Maker #DIY #Microcontroller #Elecrow

Artikel-Update:

I2C-#Sensoren am #Elecrow #LoRaWAN #LR1262 Dev.-Board mit #Raspi-Pico 2040

ergänzt: Sensoren #BME280 und #BME680

--> https://cool-web.de/raspberry/elecrow-rp2040-sx1262-lorawan-development-board-i2c-sensors-bmp280.htm

#LoRa #Bosch #Sensortec #BMP280 #RaspberryPi #Raspi #PiPico #RP2040 #Elektronik #Maker #DIY #Microcontroller #Elecrow

Artikel-Update:

I2C-#Sensoren am #Elecrow #LoRaWAN #LR1262 Dev.-Board mit #Raspi-Pico 2040

ergänzt: Sensoren #BME280 und #BME680

--> https://cool-web.de/raspberry/elecrow-rp2040-sx1262-lorawan-development-board-i2c-sensors-bmp280.htm

#LoRa #Bosch #Sensortec #BMP280 #RaspberryPi #Raspi #PiPico #RP2040 #Elektronik #Maker #DIY #Microcontroller #Elecrow

T-Echo Plus #Meshtastic Gerät mit Umwelt-#Telemetrie-#Sensor erweitern

--> https://cool-web.de/nrf/lilygo-t-echo-plus-lora-meshtastic-bme280-bme680-i2c-sensor-anschliessen.htm

#nRF #nRF52840 #LILYGO #TEchoPlus #I2C #BMP280 #BME280 #BME680 #Maker #DIY #Mikrocontroller #LoRa #Funknetzwerk #868MHz #Jedermannfunk #Hardware #Analyse #Oszilloskop

T-Echo Plus #Meshtastic Gerät mit Umwelt-#Telemetrie-#Sensor erweitern

--> https://cool-web.de/nrf/lilygo-t-echo-plus-lora-meshtastic-bme280-bme680-i2c-sensor-anschliessen.htm

#nRF #nRF52840 #LILYGO #TEchoPlus #I2C #BMP280 #BME280 #BME680 #Maker #DIY #Mikrocontroller #LoRa #Funknetzwerk #868MHz #Jedermannfunk #Hardware #Analyse #Oszilloskop

T-Echo Plus #Meshtastic Gerät mit Umwelt-#Telemetrie-#Sensor erweitern

--> https://cool-web.de/nrf/lilygo-t-echo-plus-lora-meshtastic-bme280-bme680-i2c-sensor-anschliessen.htm

#nRF #nRF52840 #LILYGO #TEchoPlus #I2C #BMP280 #BME280 #BME680 #Maker #DIY #Mikrocontroller #LoRa #Funknetzwerk #868MHz #Jedermannfunk #Hardware #Analyse #Oszilloskop

T-Echo Plus #Meshtastic Gerät mit Umwelt-#Telemetrie-#Sensor erweitern

--> https://cool-web.de/nrf/lilygo-t-echo-plus-lora-meshtastic-bme280-bme680-i2c-sensor-anschliessen.htm

#nRF #nRF52840 #LILYGO #TEchoPlus #I2C #BMP280 #BME280 #BME680 #Maker #DIY #Mikrocontroller #LoRa #Funknetzwerk #868MHz #Jedermannfunk #Hardware #Analyse #Oszilloskop

T-Echo Plus #Meshtastic Gerät mit Umwelt-#Telemetrie-#Sensor erweitern

--> https://cool-web.de/nrf/lilygo-t-echo-plus-lora-meshtastic-bme280-bme680-i2c-sensor-anschliessen.htm

#nRF #nRF52840 #LILYGO #TEchoPlus #I2C #BMP280 #BME280 #BME680 #Maker #DIY #Mikrocontroller #LoRa #Funknetzwerk #868MHz #Jedermannfunk #Hardware #Analyse #Oszilloskop

#Sensor #Bosch #BME680 als #Thermometer, #Barometer, #Hygrometer und VOC-Meter nutzen

--> https://cool-web.de/raspberry/bosch-bme680-i2c-temperatur-luftfeuchtigkeit-luftdruck-lueftguete-sensor-thermometer-hygrometer-voc.htm

#RaspberryPi #Raspi #Pico #RP2040 #Maker #DIY #Mikrocontroller #Elecrow #LoRa #BMP280 #BME280 #AHT20 #VOC #Gase #I2C #Luftqualität #Luftdruck #Temperatur

#Sensor #Bosch #BME680 als #Thermometer, #Barometer, #Hygrometer und VOC-Meter nutzen

--> https://cool-web.de/raspberry/bosch-bme680-i2c-temperatur-luftfeuchtigkeit-luftdruck-lueftguete-sensor-thermometer-hygrometer-voc.htm

#RaspberryPi #Raspi #Pico #RP2040 #Maker #DIY #Mikrocontroller #Elecrow #LoRa #BMP280 #BME280 #AHT20 #VOC #Gase #I2C #Luftqualität #Luftdruck #Temperatur

#Sensor #Bosch #BME680 als #Thermometer, #Barometer, #Hygrometer und VOC-Meter nutzen

--> https://cool-web.de/raspberry/bosch-bme680-i2c-temperatur-luftfeuchtigkeit-luftdruck-lueftguete-sensor-thermometer-hygrometer-voc.htm

#RaspberryPi #Raspi #Pico #RP2040 #Maker #DIY #Mikrocontroller #Elecrow #LoRa #BMP280 #BME280 #AHT20 #VOC #Gase #I2C #Luftqualität #Luftdruck #Temperatur

#Sensor #Bosch #BME680 als #Thermometer, #Barometer, #Hygrometer und VOC-Meter nutzen

--> https://cool-web.de/raspberry/bosch-bme680-i2c-temperatur-luftfeuchtigkeit-luftdruck-lueftguete-sensor-thermometer-hygrometer-voc.htm

#RaspberryPi #Raspi #Pico #RP2040 #Maker #DIY #Mikrocontroller #Elecrow #LoRa #BMP280 #BME280 #AHT20 #VOC #Gase #I2C #Luftqualität #Luftdruck #Temperatur

#Sensor #Bosch #BME680 als #Thermometer, #Barometer, #Hygrometer und VOC-Meter nutzen

--> https://cool-web.de/raspberry/bosch-bme680-i2c-temperatur-luftfeuchtigkeit-luftdruck-lueftguete-sensor-thermometer-hygrometer-voc.htm

#RaspberryPi #Raspi #Pico #RP2040 #Maker #DIY #Mikrocontroller #Elecrow #LoRa #BMP280 #BME280 #AHT20 #VOC #Gase #I2C #Luftqualität #Luftdruck #Temperatur

#Mailbag #141: #Elektronik #AliExpress #China, #nRF52840 Boards, #BME680, #LoRa #868MHz #Rubberduck #Antennen

--> https://youtu.be/ICsO_0p8k1c

#Maker #DIY #Mikrocontroller #Funknetzwerk #MadeInChina #Warentest #Review #Produkttest #Gadgets

Trying to set up an ESP32 to send weather data via MQTT to my PC.

I have not managed.

#MQTT #ESP32 #BME680

I now have a visual indicator for air quality in my home office (#BME680, 8x8 led matrix, #RPi and a little bit of scripting). Best idea ever.

"Stoßlüften" (Shock ventilation) works.

#homeoffice #bme680 #esp32

The #BME680 component seems awfully unreliable after all

Its VOC is wild, and the temperature measurements are consistently 2°C too high (compared with commercially available sensors)

#electronics

Today I soldered a few more of my custom air quality thingies, flashed them with the exact same program as the other ones, gave them a USB adapter and plugged them in their own spot in the house

They automatically found their path in the mesh, then they started sharing and recording their readings, which automatically appeared in my dashboard, and all I had to do was rename them there

In the picture, the number in the parentheses is the number of readings for the day (more or less one per minute) and all bars and lines represent average readings for the day; I have one graph per room to get the timelines

Humidity and temperature are on the left axis, all the other are on the right axis

(Looks like the one in the bedroom crashed again)

The one in the attic is missing however long it took me to solder the new things, since that’s the one I unplugged to use as a template

#electronics #bme680 #esp8266

This morning my ISP had an outage and I restarted their router, which happens to power my rpi0 with the web server for this project

And I forgot to restart that web server, so I lost all data from today

But before that, it was performing beautifully. There were 844 records for each node since last night, like clockwork. I happen to have cleared my previous data last night, so all the nodes were running and already on a stable mesh at the time.

Each sensor has been broadcasting its readings every three seconds, at which point my server decides to ignore most readings until the 1 minute mark (per sensor) and I’m happy that not one minute was lost for half a day of recording

I am less happy that after the web server was restarted, none of the microcontrollers found it by themselves. It looks like the entire mesh collapsed because the root node couldn’t bridge both networks again.

I understand that the root node didn’t restart the bridge between both WiFi (I didn’t set it up that way), but I would have thought that the iot mesh should have continued independently? Perhaps because it is declared as the root node? I’ll have to test this more.

I reset the ESP32 root node and it picked up the home WiFi fine, but none of the probes connected to it again (this mesh should have self healed within minutes, at most)

I went around the house to reset each ESP8266 node and yes, that is when the mesh self organized again and I started seeing the web server collecting readings again, as their BME680 sensor finished its self calibration routine

#meshnetwork #AirQuality #esp32 #esp8266 #bme680 #raspberrypi

DIY устройство в подрозетник с датчиками окружающей среды в комнате

Я не являюсь экспертом в схемотехнике и разработке печатных плат, это был мой первый опыт в этой области, и, конечно, я ожидал, что мой путь будет долгим и тернистым. Но я был решительно настроен, так как конечный результат должен быть использован в моем доме как полноценно работающее устройство.

https://habr.com/ru/articles/841532/

#diy_умный_дом #homeassistant #esp32 #esphome #sensors #scd40 #ld2410c #bme680 #подрозетник

I’m really happy with how my current project is going

This is an air quality sensor plugged into a microcontroller that’s transmitting readings over a mesh WiFi

I only have this one soldered at the moment, plus a prototype on a breadboard. That's my proof of concept that I could do this.

I learned lots doing this. Quite happy. Much to do still.

[edit] Code and documentation are at:
https://github.com/GuillaumeRossolini/griotte

#electronics #bme680 #esp8266

@scrwd in case you’re interested, I finally got my little #electronics experiment working: #BME680 sensor on #ESP8266 microcontroller, sending data over mesh WiFi and viewable from my phone

Jetzt läuft auch das zweite Meshtastic #Gateway mit dem Sensor #BME680.

Wenn das Gehäuse (https://www.etsy.com/de-en/listing/1158237722/rak5005-case-for-meshtastic) für meinen mobilen #RAK5005 / #RAK4630 Client angekommen ist, vermutlich Anfang Oktober, dann muss ich mal schauen, ob in dem Gehäuse noch genügend Platz für den Sensor und das Kabel vorhanden ist.

Falls ja, montiere ich dort auch einen Sensor 😀

#meshtastic #lora #wan #mesh

Mit dem Sensor #BME680, der den gleichen #I2C Bus wie das Display nutzt, er also parallel aufgeschaltet / aufgelötet werden kann, ist es möglich, die #Temperatur, die #Luftfeuchtigkeit, den #Luftdruck und die #Luftqualität zu messen, und in die Anzeige des Clients zu übergeben.

Ich habe es heute mit meinem ersten #Gateway, einem #T-Beam getestet.

Das zweite Gateway folgt 😀

#meshtastic #lora #wan #mesh

Trying to get a basic IAQ reading using a #bme680 and a #badger2040 is doing my noggin in. I found some sample code by @jankmammal but can't for the life of me figure out what I'm doing wrong with the Gas Resistance measures (which never top 10 for me, sitting in my apartment)

I have a Bosch #BME680 at an #ESP 8266 outside that offers Air Quality Monitoring - #AQI.

They reach values of >200 with lowest values i have see after rain being down to 80.

The internet claims values over 200 are really bad - anyone any experience with those sensors outside? What does your sensors show? #AitQuality #AirQualityMonitoring #Rotterdam

I have a Bosch #BME680 sensor that offers an Air Quality monitoring with #AQI.

Enough playing around for today

#Sensors #ESP #wemos #BME280 #bme680 #mosquitto #OpenHAB #grafana

Let's put those sensors in the house

#ESP8266 #BME280 #BME680 #DHT22

Anyone more experience with the #BME680 sensor (temp / humidity / pressure / air quality)

I installed one yesterday and today morning it made a jump to a wrong value (off by 12C / 250 hPa) and stayed there. Reboot of the wemos d1 did do nothing, power off / on solved it.

Anyone an idea?

(It looks like a sawtooth pattern but it is indeed the exactly same value which the #OpenHAB then does not report, a misconfiguration i know where but did not get to fixing it. )
#homemonitoring #grafana

TshWatch Helps You Learn More About Yourself - TshWatch is a project by [Ivan / @pikot] that he’s been working on for the past tw... - https://hackaday.com/2022/04/03/tshwatch-helps-you-learn-more-about-yourself/ #wearableelectronics #wearablehacks #healthhacking #healthmonitor #e-inkdisplay #datalogging #datalogging #datalogger #datalogger #smartwatch #ds3231rtc #wearables #esp32ulp #max30101 #wearable #bme680 #ds3231 #e-ink #esp32 #eink #ulp

Was Bosch mir ihrem #BME680 und dem zum ordentlichen Betrieb notwendigen Algorithmus abzieht wird auch immer kruder....

Nicht nur das der Algorithmus proprietär ist und es nichtmal amd64 Linux binaries gibt, nein jetzt wollen sie auch noch das ich Email, Name, Adresse und Alter hinterlege und 18 sein muss damit ich den kram überhaupt runterladen darf...

Two-Part, Four-Wire Air Quality Meter Shows How It’s Done - The Bosch BME680 is a super-capable environmental sensor, and [Random Nerd Tutorials] has married it... - https://hackaday.com/2020/08/25/two-part-four-wire-air-quality-meter-shows-how-its-done/ #environmentalsensor #airquality #homehacks #tutorial #how-to #bme680 #esp32

A Portable Home Air Quality Meter With The ESP32 - Around the world, rolling pandemic lockdowns have left many working from home. [kn100] is in just su... more: https://hackaday.com/2020/07/20/a-portable-home-air-quality-meter-with-the-esp32/ #airquality #homehacks #bme680 #esp32

DIY устройство в подрозетник с датчиками окружающей среды в комнате

Я не являюсь экспертом в схемотехнике и разработке печатных плат, это был мой первый опыт в этой области, и, конечно, я ожидал, что мой путь будет долгим и тернистым. Но я был решительно настроен, так как конечный результат должен быть использован в моем доме как полноценно работающее устройство.

https://habr.com/ru/articles/841532/

#diy_умный_дом #homeassistant #esp32 #esphome #sensors #scd40 #ld2410c #bme680 #подрозетник

DIY устройство в подрозетник с датчиками окружающей среды в комнате

Я не являюсь экспертом в схемотехнике и разработке печатных плат, это был мой первый опыт в этой области, и, конечно, я ожидал, что мой путь будет долгим и тернистым. Но я был решительно настроен, так как конечный результат должен быть использован в моем доме как полноценно работающее устройство.

https://habr.com/ru/articles/841532/

#diy_умный_дом #homeassistant #esp32 #esphome #sensors #scd40 #ld2410c #bme680 #подрозетник

#Mailbag #141: #Elektronik #AliExpress #China, #nRF52840 Boards, #BME680, #LoRa #868MHz #Rubberduck #Antennen

--> https://youtu.be/ICsO_0p8k1c

#Maker #DIY #Mikrocontroller #Funknetzwerk #MadeInChina #Warentest #Review #Produkttest #Gadgets

#Mailbag #141: #Elektronik #AliExpress #China, #nRF52840 Boards, #BME680, #LoRa #868MHz #Rubberduck #Antennen

--> https://youtu.be/ICsO_0p8k1c

#Maker #DIY #Mikrocontroller #Funknetzwerk #MadeInChina #Warentest #Review #Produkttest #Gadgets

#Mailbag #141: #Elektronik #AliExpress #China, #nRF52840 Boards, #BME680, #LoRa #868MHz #Rubberduck #Antennen

--> https://youtu.be/ICsO_0p8k1c

#Maker #DIY #Mikrocontroller #Funknetzwerk #MadeInChina #Warentest #Review #Produkttest #Gadgets

#Mailbag #141: #Elektronik #AliExpress #China, #nRF52840 Boards, #BME680, #LoRa #868MHz #Rubberduck #Antennen

--> https://youtu.be/ICsO_0p8k1c

#Maker #DIY #Mikrocontroller #Funknetzwerk #MadeInChina #Warentest #Review #Produkttest #Gadgets

Jetzt läuft auch das zweite Meshtastic #Gateway mit dem Sensor #BME680.

Wenn das Gehäuse (https://www.etsy.com/de-en/listing/1158237722/rak5005-case-for-meshtastic) für meinen mobilen #RAK5005 / #RAK4630 Client angekommen ist, vermutlich Anfang Oktober, dann muss ich mal schauen, ob in dem Gehäuse noch genügend Platz für den Sensor und das Kabel vorhanden ist.

Falls ja, montiere ich dort auch einen Sensor 😀

#meshtastic #lora #wan #mesh

Jetzt läuft auch das zweite Meshtastic #Gateway mit dem Sensor #BME680.

Wenn das Gehäuse (https://www.etsy.com/de-en/listing/1158237722/rak5005-case-for-meshtastic) für meinen mobilen #RAK5005 / #RAK4630 Client angekommen ist, vermutlich Anfang Oktober, dann muss ich mal schauen, ob in dem Gehäuse noch genügend Platz für den Sensor und das Kabel vorhanden ist.

Falls ja, montiere ich dort auch einen Sensor 😀

#meshtastic #lora #wan #mesh

Jetzt läuft auch das zweite Meshtastic #Gateway mit dem Sensor #BME680.

Wenn das Gehäuse (https://www.etsy.com/de-en/listing/1158237722/rak5005-case-for-meshtastic) für meinen mobilen #RAK5005 / #RAK4630 Client angekommen ist, vermutlich Anfang Oktober, dann muss ich mal schauen, ob in dem Gehäuse noch genügend Platz für den Sensor und das Kabel vorhanden ist.

Falls ja, montiere ich dort auch einen Sensor 😀

#meshtastic #lora #wan #mesh

Jetzt läuft auch das zweite Meshtastic #Gateway mit dem Sensor #BME680.

Wenn das Gehäuse (https://www.etsy.com/de-en/listing/1158237722/rak5005-case-for-meshtastic) für meinen mobilen #RAK5005 / #RAK4630 Client angekommen ist, vermutlich Anfang Oktober, dann muss ich mal schauen, ob in dem Gehäuse noch genügend Platz für den Sensor und das Kabel vorhanden ist.

Falls ja, montiere ich dort auch einen Sensor 😀

#meshtastic #lora #wan #mesh