new-zealand
new-zealand


Author Comment Last activity Moderation
liz "For future readers of this thread, @samr did repost here: https://publiclab.org/questions/samr/04-07-2019/how-to-interpret-pms5003-sensor-values " | Read more » about 5 years ago
warren " Hi @samr, would you be able to repost your last questions on https://publiclab.org/purpleair#Questions, and we can then try to get the word out a ..." | Read more » about 5 years ago
samr " hi. we are trying to use the pms5003 sensor for a school project to take air quality measurements. We don't have much experience with air qualit..." | Read more » about 5 years ago
warren " Just linking in your excellent question here: https://publiclab.org/questions/wu_ming2/02-02-2019/how-do-i-calculate-error-for-averages " | Read more » about 5 years ago
onedollarwebhostings " Get a great lesson for this post. Visit at http://www.onedollarwebhostings.com/rs-99-web-hosting-domain-godaddy-india.html to get a best hosting o..." | Read more » about 5 years ago
wu_ming2 "I posted a related question awaiting approval but may be more useful to follow up here. I am trying to estimate the error for PA2.5 values as prov..." | Read more » about 5 years ago
lincomatic "Some anecdotal evidence.. I've built my own PM2.5 monitor using the PMS5003, and have found it to be very resistant to influences of high humidity,..." | Read more » over 5 years ago
warren "Hi, any updates on the high humidity tests? Thank you! " | Read more » over 5 years ago
warren "@warren awards a barnstar to guolivar for their awesome contribution! " | Read more » over 5 years ago
lincomatic "thank you for the super detailed summary! " | Read more » almost 6 years ago
aldehyde "Hi. What kind of Framework (for Participatory PM2.5) can use for creating monitoring cities? " | Read more » over 6 years ago
liz "This is so helpful and readable -- a gift! thank you! " | Read more » over 6 years ago
warren "We're starting to compile a lot of different sensors and testing methods here -- could be of help! https://publiclab.org/wiki/water-sensors " | Read more » over 6 years ago
fieldlab "Yes, a good question @warren - possibly not, and I'm not sure how to find out, apart from buying a whole lot of cheap cell phones. I'll keep thinki..." | Read more » almost 8 years ago
warren "Hmm, interesting! Would a cell phone screen be a really consistent spectrum? I wonder how much variability there is in manufacturing. " | Read more » almost 8 years ago
fieldlab "Thanks for your reply @warren. There is pretty good discussion going on about this concept on hackaday for Pb detection in drinking water a la Flin..." | Read more » almost 8 years ago
warren "Hmm, interesting. I don't know much about paper assays, but this kit available online says: Smallest Increment: Steps: 0, 0.15, 0.3, 1, 1.5, 3 ppm..." | Read more » almost 8 years ago