Comments

Author Comment Last activity Moderation
cfastie "The first step might be to arrange for the co-location of the HCHO sensor, an Arduino, and somebody casually familiar with Arduino. Has the proper ..." | Read more » almost 6 years ago
cfastie "Kina, Thanks for the great information. Liz, It might help to know more about this project. What is the time frame for deployment? What has been tr..." | Read more » almost 6 years ago
cfastie "There is a very simple way to read the HCHO sensor with a resolution of about 10 ppb, assuming the range of the sensor is 0 to 1000ppb. (Out of the..." | Read more » almost 6 years ago
cfastie "I think it is par for the course that a random proprietary sensor will not work gracefully with an Arduino. In this case, it might be that a standa..." | Read more » almost 6 years ago
cfastie "Any Arduino-based data logger should be able to read the signal from that sensor and save the reading at regular intervals. The main obstacle is th..." | 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 » almost 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 » almost 6 years ago
cfastie "The first two times I tried the Rev. P wind sensor, I also tried the Rev. C sensor. The Rev. C sensor did not work as well as the Rev. P, so I focu..." | Read more » almost 6 years ago
cfastie "It’s fairly straightforward to use the Modern Device Wind Sensors with either a Mini Pearl Logger or a Nano Data Logger. I had great success with t..." | Read more » almost 6 years ago
cfastie "Yes, I agree that this is a different approach to an issue that has had a lot of effort directed at software solutions. This is a purely hardware s..." | Read more » about 6 years ago
cfastie "Hi Adam, Those thermoelectric fans are very smart. This guy on YouTube shows how to make one with a $3.00 thermoelectric module and parts recycled..." | Read more » about 6 years ago
cfastie "I like the idea of linking to other notes that set the stage for the current one. I was using the response:##### powertag for a while, but that doe..." | Read more » about 6 years ago
cfastie "Thanks Jeff. That's a really interesting question. I did not include step by step instructions, so a complete novice would have to do some research..." | Read more » about 6 years ago
cfastie "Well-commented code is always helpful. At the novice level at which I work, good comments are sometimes hard to come by. I have often stolen uncomm..." | Read more » over 6 years ago
cfastie "That's a really good point that the En pin on the Feather can disable the regulator and reduce power consumption. We need a table of all the featur..." | Read more » over 6 years ago
cfastie "Teams? There are going to be teams? Will they have T-shirts? I'm still not sure overlapping code is relevant. If you have a working sketch for a K..." | Read more » over 6 years ago
cfastie "Cool. We'll have to get a third answer or Gretchen won't know what to think. " | Read more » over 6 years ago
cfastie "I'm not familiar with the KnowFlow, but I would not expect there to be much overlap in the sketches which are typically used to run the two devices..." | Read more » over 6 years ago
cfastie "Thanks Zengirl. I don't think you can buy a NASA Aeropod. You can license the technology from NASA and manufacture them, but I don't know if anyone..." | Read more » over 6 years ago
cfastie "A goat is way better than brown M&Ms. But that is not exactly my motivation here because I'm sure everybody reads my research notes extremely ..." | Read more » over 6 years ago
cfastie "The Melexis MLX90614 Non-Contact Sensor has a temperature range of -70°C to +380°C. This is an infrared sensor so it does not have to touch the thi..." | Read more » over 6 years ago
cfastie "Leslie, it's really good you got this working. Thanks for troubleshooting the RTC library. It looks like the library I have been using is the MrAlv..." | Read more » over 6 years ago
cfastie "It would be fun to try an Aeropod. I couldn't find any details about the instruments, but it looks like an awesome contraption to fly. " | Read more » over 6 years ago
cfastie "A pitot tube measures air pressure and uses fancy math to relate that to wind speed. I assume the ones on airplanes work better than the Rev P. " | Read more » over 6 years ago