RGB

RE: RGB

Tue, 23 Oct 2018 17:09:30 GMT

My RGB LED is active low also.

RE: RGB

awneil — Tue, 23 Oct 2018 15:27:33 GMT

Again, remember that the DK LEDs are active low; ie, taking the output pin low turns the LED ON.

Is your RGB LED wired to be the same - or is it active high ... ?

RE: RGB

Tue, 23 Oct 2018 15:06:00 GMT

Yes i am working with the same code. Now i have white color as a background but inside of this white color i am seeing red, green and blue fading down then up.

RE: RGB

awneil — Tue, 23 Oct 2018 14:29:48 GMT

Which is what I said 2 hours ago.

So now we're making progress!

What happens if you now connect your RGB LED to the DK - still running this exact same code?

Remember that the DK LEDs are active low; ie, taking the output pin low turns the LED ON.

RE: RGB

Tue, 23 Oct 2018 14:19:13 GMT

this pause is about 1 second and for the second question maybe it is correspond to that.

RE: RGB

awneil — Tue, 23 Oct 2018 14:09:41 GMT

so how long is that?

does it correspond to the "on time" you were seeing before?

RE: RGB

Tue, 23 Oct 2018 14:04:06 GMT

there is short pause.

RE: RGB

awneil — Tue, 23 Oct 2018 13:56:19 GMT

and does the LED1 fade start immediately at the end of the LED3 fade - or is there a pause?

RE: RGB

Tue, 23 Oct 2018 12:51:42 GMT

1_led1 fade up then down

2_led2 fade up then down

3_led3 fade up then down

and this process repeat continuesly.

RE: RGB

awneil — Tue, 23 Oct 2018 12:51:36 GMT

Run it on the DK.

Tell us what you see.

How to properlypost source code:

RE: RGB

Tue, 23 Oct 2018 12:47:16 GMT

So for 3 channel:

nrf_drv_pwm_config_t const config0 =
{
.output_pins =
{
red
green
blue
},

and for seq:

m_demo1_seq_values.channel_0 = 0;
m_demo1_seq_values.channel_1 = 0;
m_demo1_seq_values.channel_2 = 0;

is that correct?

RE: RGB

awneil — Tue, 23 Oct 2018 12:46:37 GMT

OK - so if you run that edited code on the DK, what do you see on the 3 LEDs?

The code neither knows nor cares what colours the LEDs are!

RE: RGB

Tue, 23 Oct 2018 12:44:23 GMT

I eddited the code for 3 leds and have this problem. so i dont think so it is correspond to 4th led.

RE: RGB

awneil — Tue, 23 Oct 2018 12:37:07 GMT

Yes - as already stated, the demo1 program does do exactly that.

But, as I said, it does it on four LEDs - not three.

So does this unwanted "ON" period you're seeing correspond to the fade-up & fade-down time of the 4th LED ... ?

RE: RGB

Tue, 23 Oct 2018 12:28:02 GMT

I just want:

1_LED red fade up then down

2_LED green fade up then down

3_LED blue fade up then down

I know demo1 must do this but i cant see this process in RGB led.

RE: RGB

Tue, 23 Oct 2018 12:24:37 GMT

hey. i dont want it to happen.

RE: RGB

Hakon — Tue, 23 Oct 2018 12:10:22 GMT

Hey,

The "on time" that you are referring to, do you want it to happen or not?

RE: RGB

Mon, 22 Oct 2018 18:04:14 GMT

I explained it clearly! i hope some one else answer it soon

thank u

RE: RGB

awneil — Mon, 22 Oct 2018 18:00:07 GMT

Sorry, I cannot follow that at all.

Hopefully someone else will be along soon who can get what you are saying.

RE: RGB

Mon, 22 Oct 2018 17:55:05 GMT

If you try to connect 1 RGB led to nrf52840 maybe you will see the same phenomenon. i mean 3 second on and 1 second fading up down(all 3 colors in 1 second). but it is wrong and we must have red fading up down, green and blue also. in concept we have to has below process but we cant observe this and instead i can see what i told u.

Fade red up, then down
Fade green up, then down
Fade blueup, then down

RE: RGB

Mon, 22 Oct 2018 17:47:10 GMT

we use 3 channel so we have this phenomenon (because red, green and blue mixed together so we have white color). . both are same. but for make it simple i explain it by 1 channel and said If i have channel for red only so it must fade up and down. thats it. i dont know why i have 3 second constand on!

RE: RGB

Mon, 22 Oct 2018 17:42:07 GMT

As i wrote before it is in reality and happening now. But as u know better it must not work like this!

RE: RGB

awneil — Mon, 22 Oct 2018 17:38:28 GMT

Is that what is happening, or what you want to happen?

And what does that have to do with the stuff about the separate red, green. and blue in your opening post?

You are just confusing me further!!

RE: RGB

Mon, 22 Oct 2018 17:30:04 GMT

suppose we have a led which normally is on(white color) but after each an every 3 second increasing brightness from 0 to 100 and vice versa(in 1 second) and again it is on(white color) for 3 second and ....

RE: RGB

awneil — Mon, 22 Oct 2018 17:07:13 GMT

OK, let's go back to the beginning:

[quote userid="73588" url="~/f/nordic-q-a/39694/rgb"]by bellow code i can go for a white color which seems start from 0 to 100[/quote]

So what, exactly, do you mean by that?

To me, it sounds like you have white colour fading up (ie, gradually increasing in intensity/brightness) from zero (off) to 100% (full brightness).

Is that what you mean?

If not, please clarify.