| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "I think there is a little screw that can be turned to "tune" each sensor board, so I wonder if you could put both in the same sample and use a smal..." | Read more » | over 4 years ago | |||
| warren | "Maybe we could do both sound and light? That way it is adaptable for different abilities too. I don't know if we could have one port drive a light..." | Read more » | over 4 years ago | |||
| warren | "So, i realized entering control-shift-; in a google spreadsheet enters the exact time/date in a cell. Maybe we can modify the Arduino code to send ..." | Read more » | over 4 years ago | |||
| warren | "That is really odd. I tried a couple other things but can't figure out why this is happening. In theory it should just be pressing the tab key betw..." | Read more » | over 4 years ago | |||
| warren | "Hmm, the script is: function onEdit(e) { var val = e.range.getValue().toString(); if (val.indexOf('_now') !== -1) { e.range.setValue(Dat..." | Read more » | over 4 years ago | |||
| warren | "Oh, it looks like the sensor is sending "_now" instead of "now"... I wonder is it possible to modify the spreadsheet script to match that? " | Read more » | over 4 years ago | |||
| warren | " " | Read more » | over 4 years ago | |||
| warren | "I did this! My first error it was a silly mistake - the yellow/red/black cable was plugged in backwards. "apparently" it makes a difference which ..." | Read more » | over 4 years ago | |||
| warren | "Thanks! I'd guess that's true of some of #dfrobot / #knowflow sensors too, since several of theirs ship with buffer and are off-the-shelf probes co..." | Read more » | over 4 years ago | |||
| warren | "For one, these sensors don't seem to log data, but they're so easy to use otherwise that they seem pretty good for a workshop, for example! cc @ch..." | Read more » | over 4 years ago | |||
| warren | "If it's helpful, this page helps with the context of "prototyping kits" to ensure people know things are "in the testing phase" -- https://publicla..." | Read more » | about 6 years ago | |||
| warren | "@Ag8n found you can look on Amazon for aquarium sensors! https://publiclab.org/questions/Ag8n/02-12-2018/substitution-for-conductivity-meter Inclu..." | Read more » | about 6 years ago | |||
| warren | "I love this idea. Here are some leads on connecting a TDS meter to an Arduino, if that's what you're interested in: https://forum.arduino.cc/index..." | Read more » | about 6 years ago | |||
| warren | "wow!!! This is very cool. Here's an amazon link: https://www.amazon.com/s/?tag=duc0c-20&url=search-alias%3Daps&field-keywords=tds%20aquarium " | Read more » | about 6 years ago | |||
| warren | "And also see: https://publiclab.org/questions/gretchengehrke/07-19-2017/can-commercially-available-water-sensors-work-with-diy-data-loggers " | Read more » | over 6 years ago | |||
| warren | "@cfastie - i remember you highlighted a few different interfaces Arduinos can use -- i2c, analog... do many sensors fall into one of these categori..." | Read more » | over 6 years ago | |||
| warren | "We're going to try to collect this info on this listing of different sensors over here! https://publiclab.org/wiki/water-sensors#Sensors " | Read more » | over 6 years ago | |||
| warren | "Hi, @rockets -- maybe refining the title could be helpful here; I hope you don't mind but as I'm an admin, I changed it to How accurate are KnowFlo..." | Read more » | almost 7 years ago | |||
| warren | "At the Somerville coworking yesterday it occurred to me how similar this is to the optical particulate monitor designs! http://publiclab.org/notes..." | Read more » | over 8 years ago | |||
| warren | "Love it! Maybe we should offer these parts in the store for early experimenters? Just the stopper and some sealant? 2.8oz tubes are for <$4 on a..." | Read more » | over 8 years ago |