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November 29, 2008
about 7 months ago
Sidenote: Over the holidays I went to visit my Dad at his home for the first time in ~10 years. After seeing his collection of projects in progress. I opened a browser and showed him 31 items I had sitting in my Sparkfun cart. He had 28 of those items in quantities of 8-24 each! My cart had 1 of each item in it and was over $100. He insisted I went home with 4 of each item. Now I’m the hoarder.
Thanks, Dad, for making me the geek I am today, even before it was cool. Love you. (It’s cool to know he’ll stumble upon this someday.)
Oh, for the love! No! As tinkerers we are all predisposed toward hoarding. The last thing we need is to be buying stuff WE KNOW DOESN’T WORK. Life is too short. DON’T DO IT!!!
about 8 months ago
Please don’t use these for vape mods. They are only 1.5c and it is common to use 8c to 18c for that application. Make sure you do your research and know how to do the math to be safe. This is not like consumer electronics batteries where if they are physically the right size you can use them. When these industrial batteries are misused it is very violent.
I was able to power and drive a 5mm Diffused Addressable RGB LED https://www.sparkfun.com/products/12986 using a SparkFun 3.3v Arduino Pro Micro. However, I found that pins 5, 7, and the analog pins DO NOT WORK to drive this (at least with the Adafruit library). See more at http://forums.adafruit.com/viewtopic.php?f=47&t=61188
That is an excellent instructable. Thank you for sharing.
Oh, by off-grid, I meant “not on the edge with the other pins.” I agree that if you are going to put pins internal to the board, they shouldn’t be in line with the edge pins. Otherwise a beginner like me would make that mistake.
However, this is a compromise that I think you should consider
I needed to use the analog pins as digital I/O and found the answer to addressing them in leonardo\pins_arduino.h
PF, // D18 - A0 - PF7
PF, // D19 - A1 - PF6
PF, // D20 - A2 - PF5
PF, // D21 - A3 - PF4
The SparkFun schematic shows PF7(ADC7) for A0, but it doesn’t clearly indicate that it can be addressed as digital pin 18. Well, it can. Enjoy your extra 4 digital I/Os
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