Added neopixel weather and package tracker examples.

electricimp / reference

Electric Imp Reference Code

MIT License

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Added neopixel weather and package tracker examples. #10

Closed ersatzavian closed 10 years ago

ersatzavian commented 10 years ago

Updated READMEs Decided to preserve "ws2812" name for directory.

cat-haines commented 10 years ago

Please add the examples to a folder called "examples".
Link to package tracker website in package track example does not work. Note that in readme files you should fully qualify external links (i.e. http://packagetrackr.com instead of packagetrackr.com)
- Same for Wunderground
- And forecast.io
Wiring tables in the READMEs didn't come out right

The code itself looks good.

cat-haines commented 10 years ago

Also, you should add a note about a diode between VIN and PWR as per our conversation:

Tom Byrne: 
you're 3.6V below VDD when you're signalling
so solution
put a diode from VIN to PWR on the neopixels
you eat a diode drop (about 0.6 to 0.7V) on the VIN line
and the delta V is lowered

ersatzavian commented 10 years ago

Updated accordingly. Not including a note on our diode-on-Vin hack because it's a hack and a real level translator is the appropriate fix for the imp not being able to drive the digits when the neopixels are run from a high supply voltage.

kirasglimmer commented 10 years ago

looking forward to pulling in the weather animations

ersatzavian commented 10 years ago

Glad to hear it! Still trying to work out some glitching on some Neopixel chains. Seems to occur primarily in high numbers of digits in effects that use blue extensively and refresh very frequently. I'll be tweaking some of the parameters over the next few days. Any help is, of course, greatly appreciated!