| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Will Macfarlane (@wmacfarl) kept working on this and has a more compact version which we're not quite sure works. There may be a problem with the 5..." | Read more » | over 9 years ago | |||
| donblair | "Oh, toilet tank analogy is great! @cversek was talking at LEAFFEST about how, in the water <--> electricity analogy, the only sticking point..." | Read more » | over 10 years ago | |||
| mathew | "changing the capacitance is really easy to explain to people. every transition from a peak to trough of the wave form is queued in by the filling ..." | Read more » | over 10 years ago | |||
| mathew | "yes. we should. It isn't directly evident why we would use audio, given that it is so incredibly data-intensive. We have to make that argument RE:..." | Read more » | over 10 years ago | |||
| donblair | "Aw, shucks :) But yes, it's so cool that we might find some part of design solution space that satisfies all of these! Before Ben pointing me to t..." | Read more » | over 10 years ago | |||
| mathew | "Your diligence in solving this calibration problem in the most user-friendly way that ALSO involves simplifying the electronics AND the signal out..." | Read more » | over 10 years ago | |||
| donblair | "Here's an example of a cheap, through-hole 'trimmer capacitor': http://www.amazon.com/Through-Trimmer-Variable-Capacitors-Brown/dp/B00G9BJTJW/ref=..." | Read more » | over 10 years ago | |||
| boczniak | "very good news :) " | Read more » | over 10 years ago | |||
| donblair | "Ah darnit, I deleted my comment above by accident, instead of editing it ... Okay, the punchline is: The only ways to compensate for the effect t..." | Read more » | over 10 years ago | |||
| donblair | "My endocrine system can't handle all of these ups and downs. But tonight ends on an up. " | Read more » | over 10 years ago | |||
| donblair | "UPDATE: We can dial in the capacitance! Ben pointed me to the fact that 'trimmers' exist: http://www.mouser.com/ProductDetail/Murata/TZB4R500EA1..." | Read more » | over 10 years ago | |||
| donblair | "Yes! And before, when we had a different relationship between freq and conductivity, the only way to do that tuning was to tweak the probe -- and J..." | Read more » | over 10 years ago | |||
| mathew | "this is super excellent. does this mean that people can assemble DIY probes with slightly different relationships that we can now tune to standard..." | Read more » | over 10 years ago | |||
| donblair | "(maybe that should prompt me to reconsider my life direction?) " | Read more » | over 10 years ago | |||
| donblair | "YES! :) I was dancing around with glee last night when I saw the equation for freq vs. resistance and capacitance for the 50% duty cycle! " | Read more » | over 10 years ago | |||
| warren | "This is great news!!! And well presented! " | Read more » | over 10 years ago | |||
| btbonval | "Recently bumped into this: http://circuitmaker.com Haven't looked much into it, but the front page shows there are some collaboration tools as par..." | Read more » | over 10 years ago | |||
| mathew | "I'm fully in support of distributing proto-boarded Coqui's over circuit boards, mainly because we may need to add parts/change the resistor and cap..." | Read more » | over 10 years ago | |||
| mathew | "Upverter is nice, Eagle is just as user-friendly as a CAD software from the 80's is expected to be... We should find someone to give us all a KiCAD..." | Read more » | over 10 years ago | |||
| warren | "Great, thanks Don. I can change the title/body to reflect whatever name you think is more appropriate -- "Coqui-based water conductivity sensor"? ..." | Read more » | over 10 years ago | |||
| btbonval | "I hadn't heard of upverter. Adafruit has been pushing Eagle software, which is non-libre and has a cost. I've been seeing a lot of Eagle usage in ..." | Read more » | over 10 years ago | |||
| donblair | "Ah, this is all so great! This brings up a bunch of interesting issue for me that I'd love to get feedback on. Naming conventions. Maybe it'd be..." | Read more » | over 10 years ago | |||
| kanarinka | "Hey @warren @donblair and Katie - Nice work - this is simple and exciting. we did a home brewed test of Coquí here last weekend with hot/cold water..." | Read more » | over 10 years ago | |||
| cfastie | "The first time i have ever found a tree frog in my house was at the LEAFFEST where the Coqui was built, tested, and designed for PCB. . . Clearly..." | Read more » | over 10 years ago |