Hello, Lady Ada! First off, you ROCK! I love your site and your products! People like yourself have opened up a whole new world for me, as I find myself at a point in my life where I finally have a bit of time and money to pursue things for the sheer pleasure of doing them.
I am working on your "Quickie Projects - Portable solar charging tracker" (http://ladyada.net/make/solarlogger/). I believe you have a typo in your BOM; I think the "4.7K resistor" should instead be a 47K resistor, based on your schematic and the calculations described in the second paragraph of "Analog Stuff".
Please review and let me know if I am correct; I hope so, because I soldered the 47K in already.
Thanks in advance!
Correct resistor for "Quickie Projects - Portable solar charging tracker" ?
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Please be positive and constructive with your questions and comments.
- planetscape
- Posts: 8
- Joined: Thu Mar 03, 2011 12:07 am
- adafruit_support_bill
- Posts: 88093
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Re: Correct resistor for "Quickie Projects - Portable solar charging tracker" ?
That's right. & thanks for catching it for us.
- planetscape
- Posts: 8
- Joined: Thu Mar 03, 2011 12:07 am
Re: Correct resistor for "Quickie Projects - Portable solar charging tracker" ?
And it works! (Well, at least as best as I can test at night... )
But I also needed to make a tiny change to the sketch from https://github.com/adafruit/Solar-charging-tracker:
Line 13 was:
LiquidCrystal lcd(2, 3, 4, 5, 6, 7 );
But needed to be:
LiquidCrystal lcd(3, 2, 4, 5, 6, 7 );
(because of the pin assignments under "LCD connect and test")
I am so excited because I think this was the most complex not-really-a-kit-but-good-instructions project I've completed to date!
But I also needed to make a tiny change to the sketch from https://github.com/adafruit/Solar-charging-tracker:
Line 13 was:
LiquidCrystal lcd(2, 3, 4, 5, 6, 7 );
But needed to be:
LiquidCrystal lcd(3, 2, 4, 5, 6, 7 );
(because of the pin assignments under "LCD connect and test")
I am so excited because I think this was the most complex not-really-a-kit-but-good-instructions project I've completed to date!
Please be positive and constructive with your questions and comments.