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Looking to use a Teensy 2++ device to monitor an 8 x 8 driven matrix (5VDC levels) where the pulses are 2ms wide and when any of the 8 rows and 8 columns are congruent (low simultaneously) an output is activated for a set period of time. This is to convert a lamp matrix to an output that is...

One thing that was not checked was if the Reset button(s) are shorted. Could be a manufacturing defect or perhaps a solder wisker got where it didn't belong. That could explain the 0.1V on the reset whether or not the button was pressed... John :-#)#

Thanks, that is close to what we did to change one LED at a time. However it turns out that the strips are not bright enough for the application so I have to find another way to do programmable lights. Considering using the WS2811 and MOSFets to drive the heatsunk high intensity LEDs. Of course...

@headroom A. Not sure what you mean by hijacking as I had actually started this thread...and I am using Teensy hardware. Hmmm? B. Thanks, however I already had loaded that library (note the script I quoted) and hadn't found any obvious way of selecting/stepping a single LED from the strip. I...

OK, I've gone over to Sparkfun to try out their WS2812 scripts, but I have a problem - this is the script: #include <Adafruit_NeoPixel.h> #define PIN 2 // Parameter 1 = number of pixels in strip // Parameter 2 = pin number (most are valid) // Parameter 3 = pixel type flags, add together as...

Gah, after all that it turned out I had the Arduino.app configured for "Teensy++ 2.0" instead of 3.1! Changed to 3.1 and now the LED display is working correctly. I hope I didn't waste too much of anyone's time! Now to move on to controlling the LEDs individually by switches as in my first post.

Hi Dave, thanks, I have looked there but am having trouble with setting up the basic test. I have a 3.1 Teensy, and modified Arduino 1.0.5 (patched with the Teensy update), however when I load and then verify BasicTest I get an error "expected contsructor, destructor, or type conversion before...

I'm trying to make a controllable set of 20 LED strips that are 40 lights long. Planning on using the WS2812B strips for the project. These strips need to be controlled by 20 switches and I figure a 4 X 5 matrix for the switches would handle that. What happens is each strip is controlled by a...