60 LED NeoPixel Strip Arduino Uno Smd Edition

I am having trouble getting the test programs to run correctly with the a 60 pixel adafruit neopixel strip. The programs don’t seem to be controlling the LED strip how they should. I was wondering if the necessary library takes up too much memory for this arduino uno. We uploaded the test program to the arduino and the upload was successful. Although the program was upload successfully, the LED strip is not cooperating.

Connection:

The neopixel input (white wire) is connected to the 6th PIN (based on the program).
We are using the arduino uno’s 5V power supply to power the LED strip.
A 1000 uF capacitor is across the ground and 5V on the Arduino Uno.
A 300 Ohm resistor is across the ground and input from the board to the LED strip.

Hi dreu2014

We are using the arduino uno's 5V power supply to power the LED strip.

A 60 pixel strip could draw 18W @ 5V when fully on. That is 3.6A, much too high to take from the Arduino. Use a separate power supply for the strip, with the ground connected to Arduino ground.

A 1000 uF capacitor is across the ground and 5V on the Arduino Uno.

Adafruit recommend putting this capacitor as close to the neopixel strip as possible.

A 300 Ohm resistor is across the ground and input from the board to the LED strip.

Adafruit recommend putting this IN SERIES between the Uno digital pin and the strip data input, again as close to the strip as possible.

Regards

Ray

Resize you pics!

Attached pictures should be no more than 1000 pixels on the LONGEST side.

Watching those pictures are utterly impossible, and they are a waste of bandwidth =(

// Per.

Agree, pic's are too big. If you have Windows 8, right click on the photo and click View Image, it will resize it to the screen.

That large of a cap on the 5V regulator output can cause regulator damage as well.

See page 10:

lm1117-n.pdf (2.45 MB)