Comments on: Solar-Powered Temperature Sensor http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/ Fri, 16 Sep 2011 17:47:53 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: Eric http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/comment-page-1/#comment-3250 Eric Fri, 16 Sep 2011 17:47:53 +0000 http://www.polymythic.com/?p=127#comment-3250 Two last questions, sorry for the bother. What voltage does the temp probe use? Also did you ever experiment with cable length on the temp probe? In some cases I may need to run 100 ft of communication cable between my Arduino and temp probe! Two last questions, sorry for the bother. What voltage does the temp probe use? Also did you ever experiment with cable length on the temp probe? In some cases I may need to run 100 ft of communication cable between my Arduino and temp probe!

]]> By: Steve http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/comment-page-1/#comment-3249 Steve Fri, 16 Sep 2011 17:04:56 +0000 http://www.polymythic.com/?p=127#comment-3249 Yeah, just hook it up to the arduino analog input and ground. It outputs a voltage, as you describe, in a range 0-255. You need to convert that output via a scaling factor (the 6.875) to get C or F. Mine was F. Its not really perfectly linear, usually, but it was close enough for me. Good luck dude! Yeah, just hook it up to the arduino analog input and ground. It outputs a voltage, as you describe, in a range 0-255. You need to convert that output via a scaling factor (the 6.875) to get C or F. Mine was F. Its not really perfectly linear, usually, but it was close enough for me. Good luck dude!

]]> By: Eric http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/comment-page-1/#comment-3248 Eric Thu, 15 Sep 2011 20:25:17 +0000 http://www.polymythic.com/?p=127#comment-3248 I want to use the same temp probe with my Arduino. Can you just power the temp probe and hook it directly to the Arduino board? Does the temp probe constantly put out voltage on the analog line that corresponds to the temp? Also why do you scale the temp value by 6.875? Thanks, sorry for all the questions! Cool project by the way! I want to use the same temp probe with my Arduino. Can you just power the temp probe and hook it directly to the Arduino board? Does the temp probe constantly put out voltage on the analog line that corresponds to the temp? Also why do you scale the temp value by 6.875? Thanks, sorry for all the questions!

Cool project by the way!

]]> By: Steve http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/comment-page-1/#comment-3019 Steve Sat, 26 Feb 2011 20:10:08 +0000 http://www.polymythic.com/?p=127#comment-3019 Well, you'd have to have a battery or very large capacitor and be charging through the day, then it would be drawn from at night. Or, perhaps a standard battery that you would only draw from at night and replace every once in a while. Well, you’d have to have a battery or very large capacitor and be charging through the day, then it would be drawn from at night. Or, perhaps a standard battery that you would only draw from at night and replace every once in a while.

]]> By: Jeff http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/comment-page-1/#comment-3018 Jeff Sat, 26 Feb 2011 17:59:55 +0000 http://www.polymythic.com/?p=127#comment-3018 If you want to monitor the temperature at night, what added features would you need? If you want to monitor the temperature at night, what added features would you need?

]]> By: Solar-Powered Temperature Sensor http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/comment-page-1/#comment-2199 Solar-Powered Temperature Sensor Sun, 28 Mar 2010 20:52:32 +0000 http://www.polymythic.com/?p=127#comment-2199 [...] http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/   0 Comments Leave A Response [...] [...] http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/   0 Comments Leave A Response [...]

]]> By: Steve http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/comment-page-1/#comment-1509 Steve Tue, 30 Jun 2009 14:46:12 +0000 http://www.polymythic.com/?p=127#comment-1509 For me I wanted to be able to access it via the web from anywhere. You could do that same thing with 2 arduinos and having a PC/Web Server reading the serial data (or even the Arduino could stream the data in web format to the PC). I just didn't want to leave a PC on all the time as a web server. The ioBridge will publish all its data to the web all the time and onto my dashboard. I am sure there are Arduino-only ways to solve this as well. Let me know if you implement one! For me I wanted to be able to access it via the web from anywhere. You could do that same thing with 2 arduinos and having a PC/Web Server reading the serial data (or even the Arduino could stream the data in web format to the PC). I just didn’t want to leave a PC on all the time as a web server. The ioBridge will publish all its data to the web all the time and onto my dashboard. I am sure there are Arduino-only ways to solve this as well. Let me know if you implement one!

]]> By: Jody http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/comment-page-1/#comment-1508 Jody Tue, 30 Jun 2009 13:30:52 +0000 http://www.polymythic.com/?p=127#comment-1508 Could you do this with two Arduinos instead of an Arduino at one end and an ioBridge at the other? I already have two Arduinos and would rather not pony up $100 for an ioBridge. I guess maybe I just need a primer on XBee communication :) Could you do this with two Arduinos instead of an Arduino at one end and an ioBridge at the other? I already have two Arduinos and would rather not pony up $100 for an ioBridge. I guess maybe I just need a primer on XBee communication :)

]]> By: Steve http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/comment-page-1/#comment-1503 Steve Tue, 23 Jun 2009 01:52:39 +0000 http://www.polymythic.com/?p=127#comment-1503 Nate, I ordered off of Ebay. It was a run-of-the-mill Solar Panel rated for 12V/.2A. I believe the most common application is for solar powering little fountain pumps in a garden. It was approx. $20. Sorry I cannot find the exact part. Nate, I ordered off of Ebay. It was a run-of-the-mill Solar Panel rated for 12V/.2A. I believe the most common application is for solar powering little fountain pumps in a garden. It was approx. $20. Sorry I cannot find the exact part.

]]> By: Nate http://www.polymythic.com/2009/05/solar-powered-temperature-sensor/comment-page-1/#comment-1500 Nate Sun, 21 Jun 2009 22:30:05 +0000 http://www.polymythic.com/?p=127#comment-1500 Please post a link to the product page for your solar cell or describe the exact model/make. Please post a link to the product page for your solar cell or describe the exact model/make.

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