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| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| asampra | "I did this! Don't forget the springs. There are 3 sizes and four springs. So far the device corresponds to a duplicate system. Was reading very ..." | Read more » | over 3 years ago | |||
| warren | "OMG this is the best, Scott :-) Hey i'll be in NOLA next friday for a week! -- ig: @unterbahn | he/him/his On Thu, Jan 30, 2020 at 5:10 PM \&l..." | Read more » | over 3 years ago | |||
| eustatic | "I did this with a Lighter and a Public Lab card, thanks to Stevie. Set the Public Lab card on a tiny fire, put it out, let it smoke up the sensor,..." | Read more » | over 3 years ago | |||
| piyasidayanmain | "Breaking news for everyone Visit at Chennai-escort.com and fix your dating with independent Chennai escorts girl with genuine price, in my opinion ..." | Read more » | almost 4 years ago | |||
| ani1234 | "I am a web designer. I have a web site. This site is a education site, hear you read all type computer information .If you to see my web site then..." | Read more » | almost 4 years ago | |||
| ani1234 | "I am a web designer. I have a web site .This site is education site, hear you read computer all type information If you to see my web site then cli..." | Read more » | almost 4 years ago | |||
| dimitriconlan | "Everything depends on where you can or what you need it for, if it's for outdoors will be much more different than if you look for one for outdoors " | Read more » | almost 4 years ago | |||
| omarion | "Might be able to use a green LED to detect green light. Image below from this article: " | Read more » | about 4 years ago | |||
| omarion | "Looking into the Vernier Go Direct Color & Light Sensor: https://www.vernier.com/products/sensors/light-sensors/gdx-lc/ This simple light dete..." | Read more » | about 4 years ago | |||
| lord_of_all_sebastian | "Haha yeah it was very surprising. Before I opened it I figured it was just a little dust. " | Read more » | about 4 years ago | |||
| liz | "haha! Were you surprised??? " | Read more » | about 4 years ago | |||
| lord_of_all_sebastian | "I had the same exact problem with my PMS 7003 sensor! I was getting suspiciously high particulate matter readings on a very clear day. I found this..." | Read more » | about 4 years ago | |||
| crispinpierce | " Hi Stevie, Thanks so much for carrying out these tests. The results seem logical given the particle sizes of the solids you tested (e.g., sugar cr..." | Read more » | over 4 years ago | |||
| warren | " I'd love to combine this with a microscope activity to look at each of the powders for scale! " | Read more » | over 4 years ago | |||
| stevie | " Not too long. Maybe 3-5 seconds " | Read more » | over 4 years ago | |||
| warren | "@warren awards a barnstar to stevie for their awesome contribution! " | Read more » | over 4 years ago | |||
| warren | "Wow, this is a really great activity! And great video!!! Did the cocoa take a while to clear out and return to green? " | Read more » | over 4 years ago | |||
| kkoerner | " Sure thing, I'll see if I can get something written up within the next week. " | Read more » | over 4 years ago | |||
| liz | " Hi @kkoerner, you wrote above that "Taking apart a PurpleAir and swapping out sensors is relatively easy, if there's a desire for a similar guide ..." | Read more » | over 4 years ago | |||
| MadTinker | " @warren You know it's pretty sad when I don't catch things like this myself :smiley: I was referring to the raw data. " | Read more » | over 4 years ago | |||
| warren | "Hi, MadTinker, thanks for the info here. I was just wondering if you meant that the Coqui itself was noisy, or if you're referring to noise in the..." | Read more » | over 4 years ago | |||
| MadTinker | "I've successfully used the DFRobot TDS/conductivity sensor combined with the a Mini-Pearl system. The Coqui was much too noisy. My Arduino setup wa..." | Read more » | over 4 years ago | |||
| roberts_ecofarm | "So, after reviewing my drawings I discovered I'd made a huge mistake on the cell constant (K) in the two post probe design. The cell I designed wo..." | Read more » | almost 5 years ago | |||
| roberts_ecofarm | "So, on paper these designs look like they will work. Next step will be to build one and see what happens when design meets the real world. Hoping..." | Read more » | almost 5 years ago |