cfastie 299 research notes and 550 wiki edits | Joined about 6 years ago | Admin

The ecology and history of forests and landscapes, and new ways to see these things. High-resolution stitched images of vegetation, including low elevation aerial photography and multispectral imaging. Design and distribution of 3D printed aerial photography rigs and microcontroller gadgets via the KAPtery. Tweeting these things.

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0 questions asked

24 answers posted

75 activities posted

1 activities attempted





Adafruit Feathers for datalogging

by cfastie over 1 year ago | 4 | 2,607 views | 1


Winds aloft: and a camera too

by cfastie over 1 year ago | 3 | 462 views | 1


Winds aloft: sensor overload

by cfastie over 1 year ago | 7 | 345 views | 1


Scenes from a LEAFFEST

by cfastie over 1 year ago | 3 | 206 views | 0


LEAFFEST Aeropod flight

by cfastie over 1 year ago | 0 | 256 views | 1


NASA Aeropod unboxing

by cfastie over 1 year ago | 0 | 355 views | 2


Join us at LEAFFEST 2017

by cfastie over 1 year ago | 4 | 441 views | 2


Mini Pearl Logger longer

by cfastie over 1 year ago | 0 | 277 views | 1


Winds aloft: less noise

by cfastie almost 2 years ago | 7 | 435 views | 1


Assembling a SkyPod GPS logger

by cfastie almost 2 years ago | 0 | 370 views | 0


Winds aloft

by cfastie almost 2 years ago | 3 | 652 views | 2


Redstone Rig 2.0

by cfastie almost 2 years ago | 3 | 313 views | 1



The Squid and the Rok

by cfastie almost 2 years ago | 4 | 360 views | 3


Mini Pearl Jam

by cfastie almost 2 years ago | 2 | 345 views | 2


First flight of the SkyPod

by cfastie almost 2 years ago | 4 | 340 views | 2


The Mini Pearl Logger

by cfastie almost 2 years ago | 3 | 848 views | 3


Portable thermal IR temperature logger unit

by cfastie almost 2 years ago | 3 | 1,162 views | 3


Dual NDVI Ultra Probe Unit

by cfastie about 2 years ago | 8 | 958 views | 4


Monitor your data logger

by cfastie about 2 years ago | 0 | 599 views | 3


Data logger shield for Nano

by cfastie about 2 years ago | 15 | 6,496 views | 3


Inexpensive data logging

by cfastie about 2 years ago | 6 | 3,077 views | 3


SkyPod endurance test

by cfastie about 2 years ago | 0 | 334 views | 1


U-blox GPS board

by cfastie about 2 years ago | 3 | 619 views | 2


conductivity sensor electrolysis a concern in moving water?

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MadTinker asked about over 1 year ago

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Canon PowerShot SD750

rjun86 asked about over 1 year ago

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Would the desktop spectrometry kit work for measuring fluorescent responses?

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ICSK asked about over 1 year ago

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What's one thing that could be better for newcomers about the Public Lab website?

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warren asked about over 1 year ago

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Best PLab demo ideas for a large group?

pdhixenbaugh asked about over 1 year ago

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Helium alternative

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mrw0116 asked about over 1 year ago

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How does Riffle compatible with 5V sensors?

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shanlter asked about over 1 year ago

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What rocks are native to Salisbury, VT?

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kgradow1 asked about over 1 year ago

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STEM appropriate projects?

MadTinker asked about over 1 year ago

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What should we do at LEAFFEST?

cfastie asked about over 1 year ago

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View these maps at MapKnitter.org »

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Comments

Comment Last activity Moderation
" You are correct that your multi-day observation will present some problems. It is possible that doing a custom white balance on each day will comp..." | Read more » 3 months ago
"These are really nice bee images. If your goal is to make a seamless composite, the free Microsoft ICE (Windows only) will stitch the photos into a..." | Read more » 3 months ago
"The primary advantage of dual band filters is that they pass much narrower bands of wavelengths than red or blue filters (which also pass NIR). Th..." | Read more » 4 months ago
" The simplest modification to make the sketch save to SD card once per minute is to change the line: if (logData == 1) // wr..." | Read more » 4 months ago
"A few different cameras were used to take those photos. Most of the cameras were Canon PowerShots. I think all of the photos were saved by the came..." | Read more » 4 months ago
"Performing a custom white balance on a blue-filtered NIR camera fools the camera into exaggerating the brightness of the red channel. The red chann..." | Read more » 4 months ago
"It will always be difficult to know for sure to what degree the red channel is contaminated by NIR. It might be worthwhile making an estimate. For ..." | Read more » 4 months ago
"Although the absolute values you computed for NDVI are lower than they should be, it appears that your process is successfully discriminating betwe..." | Read more » 4 months ago
"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 » 5 months ago
"You are correct that both red and NIR pass through the red filter (Rosco Fire # 19) and both are captured in the red channel of the photograph. It ..." | Read more » 5 months ago
"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 » 6 months ago
"Thanks Nick. It's good to know about the duplicate sensors. That's an intriguing engineering decision. Chris " | Read more » 6 months ago
"This photo does not look like it was taken with a mobile phone (the image quality and dynamic range are too high) and it does not look like a CD or..." | Read more » 6 months ago
"The field evaluation report linked above includes 78 graphs comparing the results of a Purple Air sensor with a $25k GRIMM optical particle counter..." | Read more » 6 months ago
"That sounds like a lot of lift in a good wind. Does that come mostly from the kite part or from the aerofoil shape of the balloon part? Wait, does..." | Read more » 6 months ago
"Mathew, The Airpup can lift a payload of 500 grams when there is no wind. Will it lift more when there is wind? How hard was it pulling in the 20 ..." | Read more » 6 months ago
"There is another version of this sensor with the same specifications and the same price but it is about half the size. Does anyone know any reason ..." | Read more » 7 months ago
"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 » 7 months ago
"This is great project. The trickiest part will be making the device "unnoticeable to the public." That could be a real obstacle to finding a simpl..." | Read more » 7 months ago
"Magnification in this context is the relationship between the size of an object and the size of an image of that object. Assuming the hatch marks..." | Read more » 8 months ago
"Is \ *markdown * parsed?   Number 1 Number 4 Number 3   " | Read more » 8 months ago
"The image was missing, the video embed was broken, and the text which followed the video did not display. " | Read more » 8 months ago
"Let's see how this works with images or an embedded video. Is markdown parsed? " | Read more » 8 months ago
"Okay, this is an email reply to the notification email I got. Let’s see where this ends up.   Chris   From: notifications@publiclab.org \<no..." | Read more » 8 months ago


























cfastie was awarded the Basic Barnstar by warren for their work published in Superblue.


cfastie was awarded the Basic Barnstar by warren for their work published in Graze anatomy.


cfastie was awarded the Basic Barnstar by liz for their work published in Holiday Beverage Whodunit.


cfastie was awarded the Basic Barnstar by stevie for their work published in Nano particle monitoring.


cfastie was awarded the Basic Barnstar by Elidacanup for their work published in Broadening.


cfastie was awarded the Basic Barnstar by david-days for their work published in Compost is hot, says Riffle.


cfastie was awarded the Basic Barnstar by academicfora for their work published in A standalone aerial sensor pod.


cfastie was awarded the Empiricism Barnstar by warren for their work published in Grating angle.


cfastie was awarded the Empiricism Barnstar by xose for their work published in Real time and temperature.


cfastie was awarded the Photo Documentation Barnstar by warren for their work published in A DIY low power timer.


cfastie was awarded the Photo Documentation Barnstar by Hudonnoodles for their work published in Spherical KAP over Cocodrie.


cfastie was awarded the Photo Documentation Barnstar by stevie for their work published in NE Organizers Summit.


cfastie was awarded the Photo Documentation Barnstar by stevie for their work published in LEAFFEST 2014 accounting.


cfastie was awarded the Photo Documentation Barnstar by stevie for their work published in Public Lab Organizers Summit, 2014.


cfastie was awarded the Photo Documentation Barnstar by stevie for their work published in Putting sensor data to work.


cfastie was awarded the Photo Documentation Barnstar by todgobblins for their work published in Soaring Riffle.


cfastie was awarded the Video Documentation Barnstar by warren for their work published in SNOWFEST the Movie.


cfastie was awarded the Video Documentation Barnstar by mathew for their work published in Making the aluminum frame of an aerial camera rig (video).



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