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GeoAtreides t1_jcg8yw3 wrote

Reply to comment by a_a_ronc in Open-source tool from MIT’s Senseable City Lab lets people check air quality, cheaply. by chrisdh79

In the handbook for assembling, they're using a sensirion sensor (probably sps30) for particulate measurement and some unspecified "gas probes".

They're whole setup looks somehow more complicated than necessary. Would've been much easier with an ESP32 or Arduino board...

Unrelated, for VOCs measurement, Bosch has two sensors BME680 and BME688, which together with their proprietary algorithms (BSEC) and the BME AI studio, can be used for VOC measurement.

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a_a_ronc t1_jcg9usu wrote

Yeah I was looking at their assembly doc on my phone and saw it there, so just think they forgot it.

I’ll have to check out those Bosch sensors. I wanted to measure VOCs getting kicked off of resin 3D printers so was mostly just looking at full solution when I last looked.

EDIT: They responded on GitHub already. It’s listed in a separate tab of the BOM. So yeah, just an SPS30 and Bosch BME280

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John_Yossarian t1_jcgtx7z wrote

> Would've been much easier with an ESP32 or Arduino board...

That's what I came here looking for. I made an ESP32/BME680 climate sensor a few months ago and haven't gotten around to calibrating/deploying it, was hoping I could pivot and turn it into an outdoor citizen science project

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iRhcp182 t1_jchgj8j wrote

They are using the alphasense optical particle counter

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