Comments

Author Comment Last activity Moderation
cfastie "I can't help with shift registers, but I have had good luck running a 1602 LCD with just two data pins (and two power) using a serial interface mod..." | 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 "The prices at Aliexpress seemed to be the about the same as at Amazon. Some of the product descriptions at Aliexpress named the sensor. For exampl..." | Read more » almost 7 years ago
cfastie "The Public Lab spectrometers rely on cameras to make images of diffraction patterns. So the raw data is a photograph or video frame. Processing the..." | Read more » almost 7 years ago
cfastie "A good starting point for evaluating these sub $60 action cameras is the sensor. Many if not all of these cameras use sensors that do not have as m..." | Read more » almost 7 years ago
cfastie "Thanks Ed, I disabled the LEDs and deployed the Mini Pearl Logger in the compost pile again. The batteries lasted 6.5 days instead of 2.3 days. So..." | 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 "Here is a better answer. The first time the sketch tries to read the BMP280 sensor is immediately after the sensor has been initialized. So the sen..." | Read more » almost 7 years ago
cfastie "Way to go getting the Nano Logger logging! The first elevation data point is always wacky because the first barometric pressure data point is alway..." | Read more » almost 7 years ago
cfastie "That sounds like a wonderful "opportunity." It is also a revealing test case for the suitability of DIY environmental loggers to serve their maste..." | Read more » almost 7 years ago
cfastie "Thanks guys. I started the SkyPod wiki. I'm never sure what constitutes an Activity, but maybe there will be some obvious ones eventually. " | Read more » almost 7 years ago
cfastie "Okay, now I understand the question. It's really helpful to know what data logger hardware you will have. You will have a Nano Logger Kit. You will..." | Read more » almost 7 years ago
cfastie "Stevie, it sounds like you are looking for demonstrations of things data loggers can do. That really depends on what logger(s) you have and what se..." | Read more » about 7 years ago
cfastie "That's very clever. " | Read more » about 7 years ago
cfastie "I didn't know sodium was used as a phosphor in CFL lamps. That green line is one of the brightest in CFL spectra and in all mercury spectra, and me..." | Read more » about 7 years ago
cfastie "That's a gorgeous spectrum, maybe the best I've seen from a DVD. Is there more information to be gained from using more of the spectrum? A single l..." | Read more » about 7 years ago
cfastie "I don't recall seeing instructions for making spectra of plant leaves. Such a spectrum could be of the light reflected from the surface of a leaf o..." | Read more » about 7 years ago
cfastie "That's a really cool-looking wind sensor. The new one requires at least 8 volts, so a big battery pack is needed. It would be pretty fun to put tha..." | Read more » about 7 years ago
cfastie "Without making modifications to the components, a Nano Data Logger will last two or three days on small batteries (4 or 6 AA or AAA). I'm not sure ..." | Read more » about 7 years ago
cfastie "There are some important differences between the Riffle and the Nano Data Logger. The two loggers have different real time clock chips. The one o..." | Read more » about 7 years ago
cfastie " Above: @mustafa10 demonstrating a balloon with Redstone Rig and pendulum suspension. I think this happened in Berlin. I don't know who to credit f..." | Read more » about 7 years ago
cfastie "There are two balloon-kit-box photos at this note: https://publiclab.org/notes/clauds/09-03-2015/a-public-lab-chapter-in-bourj-al-shamali. " | Read more » about 7 years ago
cfastie " Above: Bristol, VT landfill balloon mapping workshop, October, 2016. Photo: Sara Wylie Above: Bristol, VT landfill balloon mapping workshop, Oct..." | Read more » about 7 years ago
cfastie " Above: Balloon mapping agricultural study plots (the first iFarm, May 2012). Photo, Chris Fastie. Above: Balloon mapping agricultural study plot..." | Read more » about 7 years ago