| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Here's some data from the Shinyei. We're still interpreting this: https://gist.github.com/jywarren/54453678f43a2c555f64 " | Read more » | almost 9 years ago | |||
| warren | "Finishd the OPK Firmata CLI for one-pin readings: https://github.com/jywarren/opk-firmata-cli/ @rjstatic and @donblair - pretty useful; basically ..." | Read more » | almost 9 years ago | |||
| warren | "So, today I wrote an OPK driver using the Firmata Node library to access an Arduino over the Firmata firmware, but we discovered that the Shinyei n..." | Read more » | almost 9 years ago | |||
| warren | "@mathew sez: Node.js interface for the Speck: https://github.com/CMU-CREATE-Lab/node-speck-sensor node.js interface for SHT15 on Raspberry Pi htt..." | Read more » | almost 9 years ago | |||
| danbeavers | "@Mathew I just added a note from a mechanical engineer friend about orifice size to the http://publiclab.org/notes/nshapiro/11-03-2014/diy-formald..." | Read more » | almost 9 years ago | |||
| mathew | "@nshapiro- 5lbs 12oz, so for mailing purposes 6lbs. Unless the blue plastic weighs 12 oz I'm tempted to keep it-- the oval cutout in the top panel..." | Read more » | almost 9 years ago | |||
| danbeavers | "To be a little more precise about "(potentially) remove the most expensive component, the flow control valve." I have not priced them but an aquar..." | Read more » | almost 9 years ago | |||
| nshapiro | "This looks great! What does it weigh? I wonder if loosing the blue plastic shell on the pump would lighten the load in any more cost-efficient way. " | Read more » | almost 9 years ago | |||
| nshapiro | "I think they are trying a new Indie go go https://www.indiegogo.com/projects/tzoa-wearable-enviro-tracker#/story They've raised 10 grand in the fir..." | Read more » | almost 9 years ago | |||
| mathew | "I don't see any images of them running the device-- seems like they demoed it under glass in January. it looks like a non-functional prototype. is..." | Read more » | almost 9 years ago | |||
| nshapiro | "have you come across this one before? http://www.mytzoa.com/#homepage do you know what sensors they use? It is maller and cheaper than I would ima..." | Read more » | almost 9 years ago | |||
| marlokeno | "This is a wonderful overview-I'm going to have to read it more than once to grasp all of this. I wonder if you could explain more for me as a non-..." | Read more » | almost 9 years ago | |||
| warren | "This is a great overview, thanks @mathew! " | Read more » | almost 9 years ago | |||
| mathew | "@jefffalk @marlokeno interested in your thoughts on this plan. " | Read more » | almost 9 years ago | |||
| el_tonio | "Hi Mat, have you thought of using a microscope? you can get ones that connect to smartphones, which depending on your phone should give you good re..." | Read more » | over 9 years ago | |||
| amysoyka | "Hey Matt, We just had an asbestos scare in my neighbourhood - so I wanted to make some cheap and simple collectors that can be hung up by resident..." | Read more » | over 9 years ago | |||
| jefffalk | "Let's try again. Gravimetric monitors capture particles and allow a weight of those captured to be determined. The distribution of aerodynamic diam..." | Read more » | almost 10 years ago | |||
| mathew | "I've been operating on the assumption that the EPA/ISO standard = PM2.5. I guess this is an etymology question. which came first: PM2.5 or the EP..." | Read more » | almost 10 years ago | |||
| jefffalk | "As I understand it PM2.5 implies an aerodynamic diameter of 2.5 microns, straight forward with no "mean" involved. The "mean" enters with the epa ..." | Read more » | almost 10 years ago | |||
| mathew | "maintenance is an issue-- look at these dylos monitors in China building up particulates http://aqicn.org/faq/2013-10-21/dylos-air-particule-conter..." | Read more » | almost 10 years ago | |||
| mathew | "@donblair-- the author doesn't seem to understand the terminology in use. The conclusions are based on a misunderstanding of what PM2.5 actually m..." | Read more » | almost 10 years ago | |||
| donblair | "Did you see the article AmySoyka posted about the Dylos? http://publiclab.org/notes/Schroyer/06-26-2014/broadcast-dust-readings-from-a-smartphone#c..." | Read more » | almost 10 years ago | |||
| chrisbartley | "Let me know if you need help with data conversion and/or uploading. " | Read more » | almost 10 years ago | |||
| mathew | "From the literature on stickypads, concentrations of particles smaller than the resolution of the scanned image can be roughly estimated by albedo ..." | Read more » | almost 10 years ago |