#sensirion — Public Fediverse posts

Since I didn't find anything about this on my fediverse reach I'll write it down:

Got a Sensirion SEN66 Air Quality Sensor but didn't get the measurement readings to work with their official python driver despite the I2C communication generally working (e.g. reading serial number)?

I noticed that it's because of mistake(s) in the latest release of the driver: https://github.com/Sensirion/python-i2c-sen66/issues/14#issuecomment-5648215071

The previous version (1.2.0) of the driver works, use that.

#sensirion #sen66 #airquality #i2c

Since I didn't find anything about this on my fediverse reach I'll write it down:

Got a Sensirion SEN66 Air Quality Sensor but didn't get the measurement readings to work with their official python driver despite the I2C communication generally working (e.g. reading serial number)?

I noticed that it's because of mistake(s) in the latest release of the driver: https://github.com/Sensirion/python-i2c-sen66/issues/14#issuecomment-5648215071

The previous version (1.2.0) of the driver works, use that.

#sensirion #sen66 #airquality #i2c

Since I didn't find anything about this on my fediverse reach I'll write it down:

Got a Sensirion SEN66 Air Quality Sensor but didn't get the measurement readings to work with their official python driver despite the I2C communication generally working (e.g. reading serial number)?

I noticed that it's because of mistake(s) in the latest release of the driver: https://github.com/Sensirion/python-i2c-sen66/issues/14#issuecomment-5648215071

The previous version (1.2.0) of the driver works, use that.

#sensirion #sen66 #airquality #i2c

CO2 станция на ESP32-C3 + SCD41 + GC6A01

История создания открытой настольной CO2-станции на базе микроконтроллера ESP32-C3, круглого дисплея GC9A01 и честного оптического NDIR-сенсора углекислого газа Sensirion SCD41. Большинство бюджетных мониторов воздуха используют дешевые eCO2-датчики, которые лишь угадывают уровень углекислого газа по качеству летучих веществ. Этот проект — полностью открытая альтернатива. Прошивка написана на чистом фреймворке ESP-IDF, использована моя собственная графическая библиотека.

https://habr.com/ru/articles/1043390/

#esp32c3 #esp32 #scd41 #sensirion #scd40 #gc9a01 #mqtt #home_assistant #co2_монитор #co2

CO2 станция на ESP32-C3 + SCD41 + GC6A01

История создания открытой настольной CO2-станции на базе микроконтроллера ESP32-C3, круглого дисплея GC9A01 и честного оптического NDIR-сенсора углекислого газа Sensirion SCD41. Большинство бюджетных мониторов воздуха используют дешевые eCO2-датчики, которые лишь угадывают уровень углекислого газа по качеству летучих веществ. Этот проект — полностью открытая альтернатива. Прошивка написана на чистом фреймворке ESP-IDF, использована моя собственная графическая библиотека.

https://habr.com/ru/articles/1043390/

#esp32c3 #esp32 #scd41 #sensirion #scd40 #gc9a01 #mqtt #home_assistant #co2_монитор #co2

Last year I worked on an ESP32-powered air quality monitor device with audio/visual alerts, but couldn't finish it due to RSI. Now I finally got around to documenting the last bits and uploading pre-built firmware binaries.

Model on Printables: https://www.printables.com/model/1529426-sensor-cube-prebuilt-fw-released
Firmware: https://codeberg.org/literallylara/SensorCube

#ESP32 #3DPrinting #IoT #HomeAssitant #Sensirion #SEN66

Last year I worked on an ESP32-powered air quality monitoring device with audio/visual alerts, but couldn't finish it due to RSI. Now I finally got around to documenting the last bits and uploading pre-built firmware binaries.

Model on Printables: https://www.printables.com/model/1529426-sensor-cube-prebuilt-fw-released
Firmware: https://codeberg.org/literallylara/SensorCube

#ESP32 #3DPrinting #IoT #HomeAssitant #Sensirion #SEN66

Last year I worked on an ESP32-powered air quality monitor device with audio/visual alerts, but couldn't finish it due to RSI. Now I finally got around to documenting the last bits and uploading pre-built firmware binaries.

Model on Printables: https://www.printables.com/model/1529426-sensor-cube-prebuilt-fw-released
Firmware: https://codeberg.org/literallylara/SensorCube

#ESP32 #3DPrinting #IoT #HomeAssitant #Sensirion #SEN66

Last year I worked on an ESP32-powered air quality monitoring device with audio/visual alerts, but couldn't finish it due to RSI. Now I finally got around to documenting the last bits and uploading pre-built firmware binaries.

Model on Printables: https://www.printables.com/model/1529426-sensor-cube-prebuilt-fw-released
Firmware: https://codeberg.org/literallylara/SensorCube

#ESP32 #3DPrinting #IoT #HomeAssitant #Sensirion #SEN66

#Sensirion SCD30 and SPS30 are handled in userspace. I didn't use the in-Kernel IIO drivers because I found the IIO drivers for these sensors not very reliable

#Sensirion SCD30 and SPS30 are handled in userspace. I didn't use the in-Kernel IIO drivers because I found the IIO drivers for these sensors not very reliable

#Sensirion SCD30 and SPS30 are handled in userspace. I didn't use the in-Kernel IIO drivers because I found the IIO drivers for these sensors not very reliable

I am very interested in the 8€ temperature/humidity sensor, but it's out of stock currently. It is supposed to use a proper #Sensirion sensor with good accuracy and for the price, it's just unbeatable. Give the new #ikea smarthome stuff a shot as the bulbs are also usable via #zigbee. And 6€ for a cw/ww GU10 bulb with matter and zigbee is unbeatable IMO.

I am very interested in the 8€ temperature/humidity sensor, but it's out of stock currently. It is supposed to use a proper #Sensirion sensor with good accuracy and for the price, it's just unbeatable. Give the new #ikea smarthome stuff a shot as the bulbs are also usable via #zigbee. And 6€ for a cw/ww GU10 bulb with matter and zigbee is unbeatable IMO.

I am very interested in the 8€ temperature/humidity sensor, but it's out of stock currently. It is supposed to use a proper #Sensirion sensor with good accuracy and for the price, it's just unbeatable. Give the new #ikea smarthome stuff a shot as the bulbs are also usable via #zigbee. And 6€ for a cw/ww GU10 bulb with matter and zigbee is unbeatable IMO.

I am very interested in the 8€ temperature/humidity sensor, but it's out of stock currently. It is supposed to use a proper #Sensirion sensor with good accuracy and for the price, it's just unbeatable. Give the new #ikea smarthome stuff a shot as the bulbs are also usable via #zigbee. And 6€ for a cw/ww GU10 bulb with matter and zigbee is unbeatable IMO.

Got me one of those IKEA ALPSTUGA air quality monitors yesterday. Now, after the initial calibration phase, the CO₂ readings are still all over the place.

People on Reddit seem to have the same experience.

This is mostly due to the #Sensirion SEN63C using an STCC4 which measures CO₂ using thermal conductivity instead of the much more reliable NDIR method.

(On a sidenote: The SEN63C alone cost £22.69 - almost as much as the whole ALPSTUGA. I wonder whether the bulk pricing makes up for the additional components.)

Sensirion also offers the much more advanced SEN66 in the same form factor and with a more accurate CO₂ sensor (NDIR?) and added VOC measurements. (For about double the price of the SEN63C - £43.45.)

However, for some weird reason, instead of using one data format over the whole SEN6x series and simply blanking out values a model doesn't support, Sensirion decided to use different read commands for each sensor which all return the data in slightly different ways. So, without a way to patch the ALPSTUGA firmware, there's sadly no way to make it support the SEN66.

See the datasheet chapters 4.8.5 (SEN63C) and 4.8.7 (SEN66).

What a shame!

#IKEA #ALPSTUGA #AQM #airquality #CO2 #accuracy #sensor #homeassistant #homeautomation

@nicorikken @mrchrisadams

nice. #CO2 sensing has been our #IoT -course project for 5 years now, triggered by Covid work conditions at first, using #Sensirion sensors too, with ESP32

@nicorikken @mrchrisadams

nice. #CO2 sensing has been our #IoT -course project for 5 years now, triggered by Covid work conditions at first, using #Sensirion sensors too, with ESP32

@nicorikken @mrchrisadams

nice. #CO2 sensing has been our #IoT -course project for 5 years now, triggered by Covid work conditions at first, using #Sensirion sensors too, with ESP32

@nicorikken @mrchrisadams

nice. #CO2 sensing has been our #IoT -course project for 5 years now, triggered by Covid work conditions at first, using #Sensirion sensors too, with ESP32

I should open the window. My #DIY #CO₂ meter went full tilt.

(Source code and instructions at https://github.com/xtaran/co2-led-meter)

#CO2Meter #CO2Sensor #AirQuality #Pimoroni #RaspberryPiZero #RaspberryPi #Sensirion #BreakoutGarden

I should open the window. My #DIY #CO₂ meter went full tilt.

(Source code and instructions at https://github.com/xtaran/co2-led-meter)

#CO2Meter #CO2Sensor #AirQuality #Pimoroni #RaspberryPiZero #RaspberryPi #Sensirion #BreakoutGarden

I should open the window. My #DIY #CO₂ meter went full tilt.

(Source code and instructions at https://github.com/xtaran/co2-led-meter)

#CO2Meter #CO2Sensor #AirQuality #Pimoroni #RaspberryPiZero #RaspberryPi #Sensirion #BreakoutGarden

I should open the window. My #DIY #CO₂ meter went full tilt.

(Source code and instructions at https://github.com/xtaran/co2-led-meter)

#CO2Meter #CO2Sensor #AirQuality #Pimoroni #RaspberryPiZero #RaspberryPi #Sensirion #BreakoutGarden

Finally got myself a good BLE adapter that works great with #HomeAssistant and so I'm able to integrate my #sensirion CO2 Sensors :)

Finally got myself a good BLE adapter that works great with #HomeAssistant and so I'm able to integrate my #sensirion CO2 Sensors :)

Finally got myself a good BLE adapter that works great with #HomeAssistant and so I'm able to integrate my #sensirion CO2 Sensors :)

Interesting not-yet-available air quality sensor from Sensirion: https://sensirion.com/products/catalog/SEN6x

It is like the Sensirion SEN55 that measures PM, VOC, NOx, temperature, and humidity, but with an extra CO2 or formaldehyde sensor included in the same module.

It seems I will need to wait until next year to get one 🤷‍♂️⏳👀

#AirQuality #sensor #Sensirion #PM25 #CO2 #VOC #NOx #electronics

Interesting not-yet-available air quality sensor from Sensirion: https://sensirion.com/products/catalog/SEN6x

It is like the Sensirion SEN55 that measures PM, VOC, NOx, temperature, and humidity, but with an extra CO2 or formaldehyde sensor included in the same module.

It seems I will need to wait until next year to get one 🤷‍♂️⏳👀

#AirQuality #sensor #Sensirion #PM25 #CO2 #VOC #NOx #electronics

Interesting not-yet-available air quality sensor from Sensirion: https://sensirion.com/products/catalog/SEN6x

It is like the Sensirion SEN55 that measures PM, VOC, NOx, temperature, and humidity, but with an extra CO2 or formaldehyde sensor included in the same module.

It seems I will need to wait until next year to get one 🤷‍♂️⏳👀

#AirQuality #sensor #Sensirion #PM25 #CO2 #VOC #NOx #electronics

Interesting not-yet-available air quality sensor from Sensirion: https://sensirion.com/products/catalog/SEN6x

It is like the Sensirion SEN55 that measures PM, VOC, NOx, temperature, and humidity, but with an extra CO2 or formaldehyde sensor included in the same module.

It seems I will need to wait until next year to get one 🤷‍♂️⏳👀

#AirQuality #sensor #Sensirion #PM25 #CO2 #VOC #NOx #electronics

@fast_code_r_us I only have a #Sensirion #SCD30 since more than two years. No problem with it. I did not know about Infineon #CO2 #sensors

@fast_code_r_us I only have a #Sensirion #SCD30 since more than two years. No problem with it. I did not know about Infineon #CO2 #sensors

I wasn't satisfied with #Sensirion's #USB powered #CO2 traffic light due to its hardcoded thresholds, so I built my own using a #RaspberryPiZero with solderless #ZeroDongle, #I2C #BreakoutGarden Mini #pHAT, Sensirion #SCD41 CO₂ sensor breakout and the #Pimoroni #LEDShim. All parts available at https://shop.pimoroni.com except for the Pi which is sold out.

The code behind it is based on two library examples by @gadgetoid and available at https://github.com/xtaran/co2-led-meter under the #MITLicense.

I wasn't satisfied with #Sensirion's #USB powered #CO2 traffic light due to its hardcoded thresholds, so I built my own using a #RaspberryPiZero with solderless #ZeroDongle, #I2C #BreakoutGarden Mini #pHAT, Sensirion #SCD41 CO₂ sensor breakout and the #Pimoroni #LEDShim. All parts available at https://shop.pimoroni.com except for the Pi which is sold out.

The code behind it is based on two library examples by @gadgetoid and available at https://github.com/xtaran/co2-led-meter under the #MITLicense.

I wasn't satisfied with #Sensirion's #USB powered #CO2 traffic light due to its hardcoded thresholds, so I built my own using a #RaspberryPiZero with solderless #ZeroDongle, #I2C #BreakoutGarden Mini #pHAT, Sensirion #SCD41 CO₂ sensor breakout and the #Pimoroni #LEDShim. All parts available at https://shop.pimoroni.com except for the Pi which is sold out.

The code behind it is based on two library examples by @gadgetoid and available at https://github.com/xtaran/co2-led-meter under the #MITLicense.

I wasn't satisfied with #Sensirion's #USB powered #CO2 traffic light due to its hardcoded thresholds, so I built my own using a #RaspberryPiZero with solderless #ZeroDongle, #I2C #BreakoutGarden Mini #pHAT, Sensirion #SCD41 CO₂ sensor breakout and the #Pimoroni #LEDShim. All parts available at https://shop.pimoroni.com except for the Pi which is sold out.

The code behind it is based on two library examples by @gadgetoid and available at https://github.com/xtaran/co2-led-meter under the #MITLicense.