open-hardware
open-hardware


Author Comment Last activity Moderation
btbonval "I like that its JSON and that there isn't a hard coded standard. It seems more like a guideline or a best practice, but of course deviation is acce..." | Read more » about 9 years ago
amysoyka "Interesting point on the data front. The way I saw that one was, the more people you have participating (resulting in more sensors collecting data..." | Read more » over 9 years ago
balrog "In short yes, I think your price estimates are good and opensource can beat this. It will be challenging running an Arduino for a year on a coin c..." | Read more » over 9 years ago
cfastie "Apparently Onset manufactures HOBOs to be NIST traceable, but they charge more money for units that pass a calibration test. Jeremy buys the less e..." | Read more » almost 10 years ago
gpenzo "Rs485 can be used. Only 3 lines and 31 slaves with max 4000ft distance. " | Read more » almost 10 years ago
amysoyka "Would either of these help? https://www.spark.io/ http://www.digi.com/xbee/ " | Read more » almost 10 years ago
mathew "@btbonval is probably right, the best short-term solution is to try to read the IR serial signal coming off of the HOBO devices. That seems to be ..." | Read more » almost 10 years ago
btbonval "Yeah the old HOBOs weren't very rugged, but that one in the image was one I remember using. There are definitely temperature range issues with a l..." | Read more » almost 10 years ago
cfastie "Bryan, maybe this is what you remember. We deployed a bunch of these in the tundra 15 years ago: . They don't seem that rugged to me. I wonder if..." | Read more » almost 10 years ago
btbonval "Oh man, HOBOs. It's been awhile since I've had to use HOBO dataloggers. It sucks that they use a proprietary format. "Open source" refers to softw..." | Read more » almost 10 years ago
hagitkeysar "thank you Mathew :-) " | Read more » almost 10 years ago
mathew "congratulations Hagit! so glad you'll be there! " | Read more » almost 10 years ago
warren "Exciting! " | Read more » about 10 years ago
sekjal "Can't wait to get my hands on the updated version and build some sweet Lego cases/containers/contraptions! " | Read more » about 10 years ago
donblair "And here's a nice way of doing color mixing using a ping pong ball as a diffuser: https://teachers.web.cern.ch/teachers/archiv/hst2005/part_sessio..." | Read more » about 10 years ago
warren "Sunwukong - I would love to see a pic of your setup; is it connected to a telescope? " | Read more » over 10 years ago
cfastie "Sunwukong, You can download the data from any spectrum at SpectralWorkbench.org. So at this page for one of the nicer CFL spectra from Ebert, you c..." | Read more » over 10 years ago
sunwukong "Do you have a data source for the intensity, pixl, wave length for the CFL in this image. Pictures are beautiful. I have a similar setup using so..." | Read more » over 10 years ago
patcoyle "Thanks Jeff, good slides. " | Read more » over 10 years ago
gbathree "We do, I just put up the Arduino code - https://github.com/Photosynq - see the "Arduino Protocols" repository. It's still very under development,..." | Read more » over 10 years ago
warren "Hi Greg - do you have any code online yet? " | Read more » over 10 years ago
warren "Wow, looks great and I'm eager to see the software as well! I'll be at the OHS... see you there! " | Read more » over 10 years ago
cfastie "Hi Spectralod, Your long tube CFL spectrum is calibrated correctly. I am not sure why you are not getting more distinct peaks with regions between ..." | Read more » about 11 years ago
spectralod "I should have also said that I don't understand this website. It's all over the place. Is there one of those standardized forums you could use inst..." | Read more » about 11 years ago