NeoPixel

hkanekal

I have a Flora controller plus a strand of 4 (four) Flora RGB Smart NeoPixel version 2, (RGB, 800 MHz)

which works fine with Arduino. The same strand  on SampleApp 2.2 fails, when I hook up

to GPIO pin 9. At one point one LED lit up in Green, indicating my power supply is OK, but then

no amount of change in line 238 (neoPixelController.initializeStrand(strand, ColorOrdering.MW_WS2811_RBG, // MW_WS2811_RGB)

trying various combinations of RGB/GRB etc seems to work.

Wondering if MbientLab has tested with various flavours of MW_WS2811_xxx ? 

How about version 2 (800 KHz) NeoPixels ( these are on the small circular PCBs : http://www.adafruit.com/products/1260 ) ?

Eric

There is no GPIO pin 9, only 0 - 7.  If you are referring to pin 9 on the pin assignments diagram (https://mbientlab.com/docs/MetaWearPPSv0.6.pdf, section 2.2) then that is GPIO pin 1.  Also, don't forget to change the operating speed to 'FAST' when calling initializeStrand for your strand.

I've only tested the NeoPixel controller on an 10 LED slow and 60 LED fast strand.

http://projects.mbientlab.com/wp-content/uploads/2014/09/IMG_20140909_1532361.jpg

http://projects.mbientlab.com/wp-content/uploads/2014/09/IMG_20140903_1307475.jpg

hkanekal

OK. setting GPIO pin 1 and using the latest API solved this problem,

Thank you