| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "That's a great development. Thanks for alerting me to that. The key to this advance is knowing how to structure the KML code to define the color of..." | Read more » | almost 5 years ago | |||
| cfastie | "Low power operation: To run your data logger for a long time on small batteries, you can put the Arduino and other components to sleep between log..." | Read more » | almost 5 years ago | |||
| cfastie | "You are right that there has not been much follow-through at Public Lab on developing and testing DIY conductivity or total dissolved solids (TDS) ..." | Read more » | over 5 years ago | |||
| cfastie | "What do you guys think, is it okay to use the mean instead of the median? @pdhixenbaugh, @MadTinker, @Shanlter, @rockets " | Read more » | over 5 years ago | |||
| cfastie | "I keep my eye out for old Nalgene bottles which are tough enough to survive rough handling and hydraulic pressure. The lids are also strong so they..." | Read more » | almost 6 years ago | |||
| cfastie | "I was impressed by the price ($12.90) of the DFRobot TDS sensor that MadTinker is working with so I bought a couple. It was easy to get it to work ..." | Read more » | almost 6 years ago | |||
| cfastie | "That will be an interesting project to make a 5v Pro Mini data logger. I guess it will also include a 5v microSD module (the ones in the Mini Pearl..." | Read more » | about 6 years ago | |||
| cfastie | "Ah, Arduino. Those DS3231 RTCs are designed to be used with a rechargeable coin cell (LIR2032) and they trickle current into the battery when curre..." | Read more » | about 6 years ago | |||
| cfastie | "There is also lots of good information in this research note by Don about some testing he did. " | Read more » | about 6 years ago | |||
| cfastie | "There has been a lot of information about measuring turbidity posted at Public Lab. Don Blair posted an excellent review of the common approaches t..." | Read more » | about 6 years ago | |||
| cfastie | "A simple option might be to turn on some NIR LEDs when the photography happens. The NIR:VIS ratio might not match sunlight, but if you know what it..." | Read more » | almost 7 years ago | |||
| cfastie | "Thanks for adding a photo. NDVI is based on the assumption that the light illuminating the foliage has a certain proportion of NIR and VIS -- the p..." | Read more » | almost 7 years ago | |||
| cfastie | "Using two cameras solves one of the two problems I described (mixed NIR and VIS). That problem can also be solved by measuring or making assumption..." | Read more » | almost 7 years ago | |||
| cfastie | "I haven't used the Pi NoIR cam and have not seen your photos, so I can only respond from general principles. Camera sensors are not as sensitive ..." | Read more » | almost 7 years ago | |||
| cfastie | "Ed, The new Mini Terminal Logger is brilliant. Those Nano terminal shields are a great find. They not only reduce the number of solder joints requ..." | Read more » | almost 7 years ago | |||
| cfastie | "Scott, There is no problem. The Mobius can do interval shooting at any interval, and it can also do motion detection. The trail camera has NIR LED..." | Read more » | over 7 years ago | |||
| cfastie | "Don't we have to have an activity before we have a follow up activity? There are lots of ways to make this an activity and many ways to follow up (..." | Read more » | over 7 years ago | |||
| cfastie | "Oh no @Zengirl2, TY so much for posting the awesome hard-hitting journalistic expose of LEAFFEST at the Adafruit blog: https://blog.adafruit.com/20..." | Read more » | over 7 years ago | |||
| cfastie | "Thanks Patrick, The table and graphs are screen captures from Excel. The graphing module in Excel is very powerful in part because it has a huge n..." | Read more » | over 7 years ago | |||
| cfastie | "This is probably not the best data set to do calculus on. The air temperature data is from a sensor in a jug suspended above the pile, and the batt..." | Read more » | almost 8 years ago | |||
| cfastie | "Thanks David, I wish I had some of your manures to spice up my pile. I'm surprised at how hot this pile is without the addition of any N-rich mater..." | Read more » | almost 8 years ago | |||
| cfastie | " I kinda like the switch on the Riffle and now I know that it is something to pay more attention to. But I guess it adds much more complexity that ..." | Read more » | almost 8 years ago | |||
| cfastie | "George that's a good point. Although the real time clock is running all the time, it is not smart enough to do something as complicated as setting ..." | Read more » | almost 8 years ago | |||
| cfastie | "Don thinks that eight seconds might be the minimum interval during which the system can be put into deep sleep. So all the sleep stuff happens in m..." | Read more » | almost 8 years ago |