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Shameless plug. If you prefer an open source / open hardware air quality monitor check out our popular DIY air quality monitor [1]. The built uses high quality

Shameless plug. If you prefer an open source / open hardware air quality monitor check out our popular DIY air quality monitor [1]. The built uses high quality sensors for PM, CO2, Temperature and Humidity. You can either build it yourself or get a kit from us with a nice plastic enclosure. You can also get the SGP41 as an optional module which not only measures TVOCs but also NOx and we can see it reacts to gas ovens/boilers. Since it is open source, you can either send data to our dashboard or to your own server / home assistant etc. So it does not force you into a subscription or a specific dashboard. [1] https://www.airgradient.com/open-airgradient/kits/ https://www.airgradient.com/open-airgradient/kits/

bloopernova 4y ago
Oh wow, that's really nice. I wish I'd known about that before I tried to make my own sensors with an ESP32, MicroPython, and a bunch of stuff from Adafruit. Very cool stuff, I'll share this with my coworkers and social group :)
donkeyd 4y ago
Is this extensible for things like CO and Radon?
- ahaucnx 4y ago
  It's open source and additional pins are broken out on the PCB so you can easily add additional sensors yourself.
nonamechicken 4y ago
I have 3 questions about SGP41: 1. Is SGP41 (the one in your website) something that I can just insert into the PCB like how we could connect a computer case fan into the motherboard header or will it need soldering? Also, I saw in your build instructions that 2 tiny resistors have to be removed for SGP30 sensor. Is that the case with SGP41 as well? 2. Do you sell the "PRO Pre-soldered" kit or any other products/devices that come with SGP41 prebuilt? If not, is there an option to buy the "PRO Pre-soldered" one with SGP41? 3. Will the software automatically start reading SGP41 values or are any changes needed on software side?
- ahaucnx 4y ago
  1. Yes. No soldering required. Just put it on the socket on the presoldered board. 2. Just buy the presoldered kit and SGP41 module together (put both items into the shopping cart). 3. Yes. The software will already show the TVOC and NOx values.

bloopernova 4y ago

Oh wow, that's really nice. I wish I'd known about that before I tried to make my own sensors with an ESP32, MicroPython, and a bunch of stuff from Adafruit. Very cool stuff, I'll share this with my coworkers and social group :)

donkeyd 4y ago

Is this extensible for things like CO and Radon?

ahaucnx 4y ago
It's open source and additional pins are broken out on the PCB so you can easily add additional sensors yourself.

nonamechicken 4y ago

I have 3 questions about SGP41: 1. Is SGP41 (the one in your website) something that I can just insert into the PCB like how we could connect a computer case fan into the motherboard header or will it need soldering? Also, I saw in your build instructions that 2 tiny resistors have to be removed for SGP30 sensor. Is that the case with SGP41 as well? 2. Do you sell the "PRO Pre-soldered" kit or any other products/devices that come with SGP41 prebuilt? If not, is there an option to buy the "PRO Pre-soldered" one with SGP41? 3. Will the software automatically start reading SGP41 values or are any changes needed on software side?

ahaucnx 4y ago
1. Yes. No soldering required. Just put it on the socket on the presoldered board. 2. Just buy the presoldered kit and SGP41 module together (put both items into the shopping cart). 3. Yes. The software will already show the TVOC and NOx values.