publiclab-at-umass
publiclab-at-umass


Author Comment Last activity Moderation
pdhixenbaugh "Just wanted to comment here if anyone finds this page, that there are new ideas about using lower voltage in the water and amplifying using an OpAm..." | Read more » over 6 years ago
epongrat "thanks mathew! I'll check on the adafruit website. " | Read more » over 7 years ago
mathew "it looks like a communication problem, looking for the right port. does adafruit have any details on communicating with their datalogger? /dev/cu...." | Read more » over 7 years ago
mathew "Not exactly sure how to solve your code problem but here is the code in an easier format to cut and paste: ''' include "SD.h" include <Wire.h&g..." | Read more » over 7 years ago
amysoyka "Hey there @markwh, This video explains the process quite well: http://youtu.be/kUR6_bQLU-E I use a toaster oven also - just be careful that you d..." | Read more » over 7 years ago
EdMallon "One of my early underwater housing designs had only three parts. A PVC endcap, a short length of pipe, and a rubber end cap. This came to about$10 ..." | Read more » over 7 years ago
markwh "@amysoyka, do you have a reference or a research note for this? I'm wondering how clean and simple that would be. Any specific applications to wate..." | Read more » over 7 years ago
amysoyka "You can melt and mould milk bottle plastic if you heat it up. " | Read more » over 7 years ago
DavidMack "PVC pipe works well. What are you using exactly--can you post a photo? For PVC, you can choose whatever diameter pipe you need then glue a cap on..." | Read more » over 7 years ago
markwh "We've been building a device based on the riffle, very similar in concept to the conductivity meter you've linked. We're using PVC pipe and our con..." | Read more » over 7 years ago
cschweik "Ok, email me on the price -- I think I will purchase through you (thanks for the single camera tray). Should I pay through your website? " | Read more » over 7 years ago
cfastie "Lifting two cameras with a Public Lab balloon requires that you fill the balloon to just about its capacity. I think it should be 5.5 feet in diame..." | Read more » over 7 years ago
cschweik "Hi Chris. Thanks for your continued interest in our project. We've got some ideas on trying to use photoshop to extract out water chestnut. We'll s..." | Read more » over 7 years ago
cfastie "Ally and @cschweik, That's great new stuff on the wiki page. Nice photos of water chestnut. Were you able to get the RGB camera working? I have a..." | Read more » over 7 years ago
rhodesg3 "Do you mean that the probe you used for testing your device (borrowed from UMass CEE dept.) was the Accumet AP85 or do you mean that you bought the..." | Read more » over 7 years ago
markwh "The probe we're using is an accumet AP85 from Fisher Scientific. We're assuming this is working perfectly--admittedly it too should be calibrated. ..." | Read more » over 7 years ago
rhodesg3 "The PhotosynQ team is going through a similar process trying to find (or mostly likely just design our own) a conductivity meter to use with our Mu..." | Read more » over 7 years ago
cfastie "Yikes, that's not good. Let me know if you need help getting a replacement camera. There are several on ebay now and I think I have another one here. " | Read more » over 7 years ago
aferland "Chris we figured out why it wasn't taking pictures but then when we were out trying to fly balloon we thought going into canoe would be a good idea..." | Read more » over 7 years ago
cfastie "Ally, It is the kite that should be flying at least 100 feet high before you attach the camera rig to the line. The camera can be attached to the l..." | Read more » over 7 years ago
liz "Fantastic documentation! Love the project goals. Keep us posted! " | Read more » over 7 years ago
mathew "nice bacronym! " | Read more » over 7 years ago