Blinkstick square turn off and timing


#1

In processing what is the correct method to turn off the Blinkstick? and how to adjust the timing between colors?


#2

Looks like there is no real support here.


#3

maybe someone can explain to me what is the channels and the indexes?or where to find this info?


#4

Hey! Which of the BlinkSticks do you have?


#5

Blinkstick square. Shall I enter my code. I can only get one led to come on.


#6

The square is composed of 8 LEDs, if you simply set the color it will turn on only the first LED.
To turn on different/multiple LEDs you can set the index of the one you want to turn on (from 0 to 7 respectively), to turn it off you can set both red, green and blue values to 0.

To turn them all on or off i cycle through all of them and set the color individually, unfortunately I don’t think there is a way to know the number of LEDs on a stick so I just counted them manually and made the loop cycle 8 iterations (there is a function to get the led count but it returns -1 for the square).

I don’t know if this is the most efficient way but it seems to work fine and by looking at the library I don’t see any other clear way to do it, bare in mind that I had my Blinksticks available since only a few days so I might be missing something very obvious.

I’m not really sure what the channel is used for either, I think is used by the Blinkstick Pro but I don’t have one so I can’t really test it


#7

Best way to control BlinkStick Square is by using LED frames. Here is the example:


#8

so this line //Sends to R channel
device.setColors(0, data);

sends only to red channel.? sorry I am just new to this too.


#9

BlinkStick Square is a derivative of BlinkStick Pro which has R=0, G=1 and B=2 channels to send digital data to LEDs. BlinkStick Square uses only R=0 channel for LED data transfers. For Square always use channel 0 to send data to the device.

If you want to know more about BlinkStick Pro and channels, you can find a bit more info in this tutorial:

https://www.blinkstick.com/help/tutorials/blinkstick-pro-adafruit-neopixel-matrices


#10

what about the turn off? The device.turnOff() method doesnt seem to work.


#11

For now, just send an LED frame with all 0, will have the turnOff feature fixed.


#12

I added this code to turn it off; //switch off
byte[] data = new byte[leds * 3];
for (int i = 0; i < data.length; i++)
{
data[i] = (byte)(0);
}

device.setColors(0, data);


#13
 In line 28 of above it says data[i] = (byte)random(128);

How do I actually set a color . data[i] = (byte)color(128);? or byte(128);
but it only sets a byte whereas a color needs 3 bytes like (128,0,0)? doesnt it? are they consecutive bytes? I am bit confused. I thought this would be easy.