| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "The Plantower sensors require 4.5 to 5.5 volts. They work well with 5 volt Arduinos. They might not work properly with ESP8266 or ESP32 boards beca..." | Read more » | about 3 years ago | |||
| cfastie | "Hi jeffalk, Thanks for pointing out that the PM10 index includes all particles smaller than 10µm. If that is true, you are correct that PM10 shoul..." | Read more » | about 5 years ago | |||
| cfastie | "If a device based on a Plantower sensor includes hardware that allows either live numerical display or data logging, it can be a very useful tool. ..." | Read more » | about 5 years ago | |||
| cfastie | "Liz, it's great to know that you (or I guess your Mom) were well coiffed in the 80s, although I regret that you did not include photographic eviden..." | Read more » | over 5 years ago | |||
| cfastie | "Leslie, I will lend you anything you need. Tell me about your HEPA setup. You must already have a 5V Arduino, so all you need is three DuPont wires..." | Read more » | over 5 years ago | |||
| cfastie | "Thanks Nick. It's good to know about the duplicate sensors. That's an intriguing engineering decision. Chris " | Read more » | over 5 years ago | |||
| cfastie | "Whoops, I just noticed this. I will try to print the parts and let you know how it works. Sorry for the delay. " | Read more » | almost 6 years ago | |||
| cfastie | "I see the little triangles of zero-thickness. My slicer (Simplify3D) ignores them, so it looks like they will print okay. @MaggPi, would you like m..." | Read more » | almost 6 years ago | |||
| cfastie | "These might do the same thing for 10¢ apiece: https://www.ebay.com/itm/10Pcs-3-5mm-Female-Stereo-Audio-Socket-Headphone-Jack-Connector-5-Pin-PCB-Mo..." | Read more » | almost 6 years ago | |||
| cfastie | "I have not used graphing for live debugging because I didn't know how easy it was to do. I use the live serial monitor in the Arduino IDE all the t..." | Read more » | about 6 years ago | |||
| cfastie | "They sure are. Excel opened the ods file without too much trouble, and the timestamps are right there. I was just curious to look at the data. Don ..." | Read more » | almost 10 years ago | |||
| cfastie | "I couldn't get Excel to parse the time stamps either. I averaged every 60 particle counts, so I assume I got a number for every minute. Here is a g..." | Read more » | almost 10 years ago | |||
| cfastie | "Instead of trying to measure air flow, you could impose a constant air flow. Chris Bartley said they got better results with a small fan in their S..." | Read more » | almost 10 years ago | |||
| cfastie | "Chris, Very nice device. And smart testing setups. The Explorables visualizations are fantastic. That will change the way people understand data se..." | Read more » | about 10 years ago |