RE: Jacket Progress

zengirl2 — Wed, 02 Oct 2013 18:08:53 GMT

Katie,

I can't speak to the light sensor library program, but I know the color sensor program blinks the first neopixel as a warning to let you know it is about to take a reading. Could this be an explanation? As far as your idea of adding more thread for the long track on the sleeve -- I definitely would do that. I once had a switch fail on a costume because the distance was too great -- probably about 5 yds. I didn't have time to do extra thread in that case, but I'm sure that would have probably solved the issue.

Keep at it -- it sounds cool and I think your idea of using the light sensor as a switch is brilliant.

RE: Jacket Progress

shabaz — Wed, 02 Oct 2013 03:25:16 GMT

Hi Katie,

Interesting project. From your earlier photo the wiring to the 8 LEDs looked nice (not that I know anything about sewing :-)

I suppose, if the remainder LEDs work and just the first one flickers, it proves that the wiring through the arm is good, and maybe the power rail to the first LED is not making good contact to it? It's just a suggestion, it sounds like you know what your're doing anyway.

As for any I2C type comms (I'm guessing this is what the sensors use?), that is hard over a distance, I've sometimes seen issues over 20-30cm, if it is at high speed. If you can slow down the I2C comms bit periods then that will help. I couldn't find the schematic for the Flora board, but sometimes it can help reducing the pullup resistor values (e.g. down to about 1.5k resistance). But, you probably want to try a slower bus speed first (or maybe Adafruit may already have information on how long the I2C can run for using the Flora board and typical wiring to the supplied sensors in the kit).