#ARDUINO RGB LED STRIP FADE TO BLACK DRIVER#

This is all working but I hope to make a few improvements. The increments the value is 1 the decrements value is 2 This will repeat the strip.fade_strip method until all of strip#0 LEDs are at $20_00_00_00. This way you can choose to repeat those methods a certain number of times or until the amount of LEDs changed is zero in other words all the LEDs current RGBW are the same as their target RGBW values. The strip.fade_fill, strip.fade_strip, or strip.fade_all will return a value of how many LEDs were changed when running the compare method. I made it two different variables so that the fade in could be different than the fade out value.Ĭalling the strip.fade, strip.fade_fill, strip.fade_strip, or strip.fade_all methods only executes the compare and adjust method once, so you need repeat the method multiple times to see any change. The amount incremented or decremented can each be set for slower or faster transitions. If they are not equal it compares each byte of the target and current R,G,B and W values and increments or decrements each byte of the current R,G,B,and W channel to eventually make the current RGBW and the target RGBW the same. This is a system that sets a target RGBW value and compares it with the current RGBW value per channel.

Lastly and the part that needs the most work: Fadingįading each pixel from any color to another. When changing the direction in programming use strip.dir or strip.dir_all methods fwrd(normal), rvrs(backwards), tggl(toggle direction), or dflt(set back to default).Įxample: strip.dir_all (dflt) ' sets all strips to default directionĮxample: strip.dir (0, tggl) ' toggles strip#0's direction When defining the default direction of the strip in Strip_Params use fwrd or rvrs.

Instead of reading the RGBW buffer from the first to the last channel of the strip this will read it from last to first channel effectively reversing the direction. When running a method like a chase or color wipe this feature lets you change the direction of any or all strips. Setup and change the direction of each strip The white channel is just dropped off of the RGB strip. Note: this feature does not do any RGBW to RGB math conversion.

#ARDUINO RGB LED STRIP FADE TO BLACK DRIVER#

Define it as 3 different strips on the same txpin and the driver will run them correctly. So on one txpin output you could run a string of RGB LEDs then wire in a string of RGBW then go back to RGB. This also works with the the above feature of dividing a strip into multiple strips. You can then use the Set_Strip method to change just the LEDs defined in the 'strip.'Īny strip can be either RGB or RGBW. Strip#0 is LEDs 0 thru 10, Strip#1 is LEDs 11 thru 15, Strip#2 is LEDs 16 thru 23, and Strip#3 is LEDs 24 thru 29 (I believe the strips need to be consecutive). You can wire a string of LEDs together then divide it into multiple 'strips 'įor instance a 30 LED string connected to pin P0 could be set up with: I'm not sure exactly why this works but I think it is a cool feature. It also seemed that 2048 LEDs (8 strips * 256 LEDs) was still within the propeller's capabilities.ĭivide a single txpin output into different 'strips' It looked like JonnyMac's ws2812 driver still had a limit per strip of 256 LEDs. The default 8 can be changed by changing the STRIP_QTY constant in the demo object and in the sk6812 driver object. I set the default to 8 strips so it would be directly compatible with Adafruits OctoWS2811 driver, which is basically a 74HCT245-based level shifter.

This first version is definitely a work in progress but it offers the following features. I also added a few more controls and features. Once I got that working I starting adding the ability to control multiple strips. I started by making a few changes to JonnyMac's ws2812 driver to make it run a single RGB or RGBW strip. I've been working on a driver that will run multiple strips of Adafruit's NeoPixels.

Arduino rgb led strip fade to black