How many Universe ?

[lyon470]

Hello, I have an Teensy 3.2 and 3.6 how many leds/universe can i drive per Teensy ?

[natcl]

I sadly don't have an official number as I haven't been able to test the upper limits. It should normally be able to drive a decent amount (4-5 minimum I would think) there's some tweaks that can be done to the Ethernet library to improve performance too. If you search for Artnet on the pjrc forums you'll find some posts about this.

-- lecaude.com studioimaginaire.com

Le 7 avr. 2019 à 09:48, lyon470 [email protected] a écrit :

Hello, I have an Teensy 3.2 and 3.6 how many leds/universe can i drive per Teensy ?

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[lyon470]

I have the teensy 3.2 and 5 universe Input but the last universe is lacking. Have i an issue in my code or is this the limit ?

[natcl]

I'm pretty sure some people were able to drive more that 5 universes, try searching the PJRC forums for more info. It depends on a lot of things, ethernet library tweaking, type of LEDs you are driving... At some point I remember lowering throughput of the ethernet connection on the computer to 10mbps speed up things.

-- lecaude.com studioimaginaire.com

Le 7 avr. 2019 à 09:58, lyon470 [email protected] a écrit :

I have the teensy 3.2 and 5 universe Input but the last universe is lacking. Have i an issue in my code or is this the limit ?

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[lyon470]

I don't find anything in the forum. Do you have an link ?

[natcl]

Not a specific one but this search should help: https://forum.pjrc.com/search.php?searchid=4622601

-- lecaude.com studioimaginaire.com

Le 7 avr. 2019 à 10:18, lyon470 [email protected] a écrit :

I don't find anything in the forum. Do you have an link ?

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[natcl]

And this thread has more specific info: https://forum.pjrc.com/threads/28975-wiz820io-max-speed?highlight=Artnet+universes

-- lecaude.com studioimaginaire.com

Le 7 avr. 2019 à 10:18, lyon470 [email protected] a écrit :

I don't find anything in the forum. Do you have an link ?

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[lyon470]

i have the Ethernet Shield with the W5500 chip. Is this a Problem ?

[natcl]

I'm not sure, I only test with the wiz820io ( https://www.wiznet.io/product-item/wiz820io/) on my side...

Le dim. 7 avr. 2019, à 11 h 39, lyon470 [email protected] a écrit :

i have the Ethernet Shield with the W5500 chip. Is this a Problem ?

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[lyon470]

I want to use the Ethernet2 lib but i get an error. what do i have to Change ?

[natcl]

I'm not familiar with the Ethernet2 lib, sorry...

Le dim. 7 avr. 2019, à 12 h 04, lyon470 [email protected] a écrit :

I want to use the Ethernet2 lib but i get an error. what do i have to Change ?

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[lyon470]

Ethernet2 lib is specifically for the W5500 chip

[natcl]

According to this thread, the standard Ethernet library of the Teensy supports the W5500 chip: https://forum.pjrc.com/threads/28642-Wiznet-W5500-support

Le dim. 7 avr. 2019, à 12 h 16, lyon470 [email protected] a écrit :

Ethernet2 lib is specifically for the W5500 chip

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[lyon470]

Yes but why i got only 4 universe incoming? I see in the Serial monitor that universe 1-4 are perfect but i don't get more than that

[natcl]

It could be for various reasons, the fact the wiz5500 is supported by Teensy's Ethernet library doens't mean it's optimized, you should also check the different optimization tricks I posted in the threads above. Posting your code would help too.

Le dim. 7 avr. 2019, à 12 h 56, lyon470 [email protected] a écrit :

Yes but why i got only 4 universe incoming? I see in the Serial monitor that universe 1-4 are perfect but i don't get more than that

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[lyon470]

Yeah many thanks i tested it now with 13 universes without lacking.

But now i have another Problem/issue. Resolume shows me all artnet nodes in my Network, also the Arduino. As soon as i tell resolume to send unicast the Arduino isn't anymore in the artnet node list. When i now change back to broadcast ,the Arduino receives the artnet but isn't in the artnet node list from resolume.

I use the one socket lib from the pjrc Forum. Hope you can help me.

[natcl]

Not sure what you mean by socket lib ?

Le lun. 8 avr. 2019, à 16 h 21, lyon470 [email protected] a écrit :

Yeah many thanks i tested it now with 13 universes without lacking.

But now i have another Problem/issue. Resolume shows me all artnet nodes in my Network, also the Arduino. As soon as i tell resolume to send unicast the Arduino isn't anymore in the artnet node list. When i now change back to broadcast ,the Arduino receives the artnet but isn't in the artnet node list from resolume.

I use the one socket lib from the pjrc Forum. Hope you can help me.

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[lyon470]

After a few long days it now work. I tested 13 Universes but it can be more.

But now i have another problem. I have two arduino teensy in my network and send artnet over resolume. In broadcast mode from resolume it work very good but when i change the artnet to unicast the led stripes breaks every 2 seconds for about 1 second. This is only in unicast and nothing other is changed. When i now turn off one teensy it work also in unicast mode but not with two teensys.

Why ?? Have anybody an idea ?

[natcl]

You'll have to post your code and detailed network setup.

[lyon470]

Resolume(PC) - 10.0.1.7 255.0.0.0 Teensy 1 - 10.0.1.99 255.0.0.0 Teensy 2 - 10.0.1.100 255.0.0.0

Code: #include <Artnet.h> #include <Ethernet.h> #include <EthernetUdp.h> #include <SPI.h> #include <Adafruit_NeoPixel.h> #include <Wire.h> #include <EEPROM.h>

Adafruit_NeoPixel leds = Adafruit_NeoPixel(170, 2, NEO_GRB + NEO_KHZ800); Adafruit_NeoPixel strip = Adafruit_NeoPixel(170, 3, NEO_GRB + NEO_KHZ800); Adafruit_NeoPixel leds2 = Adafruit_NeoPixel(170, 4, NEO_GRB + NEO_KHZ800); Adafruit_NeoPixel strip2 = Adafruit_NeoPixel(170, 5, NEO_GRB + NEO_KHZ800); Adafruit_NeoPixel leds3 = Adafruit_NeoPixel(170, 6, NEO_GRB + NEO_KHZ800); Adafruit_NeoPixel strip3 = Adafruit_NeoPixel(170, 7, NEO_GRB + NEO_KHZ800); Adafruit_NeoPixel leds4 = Adafruit_NeoPixel(170, 8, NEO_GRB + NEO_KHZ800); Adafruit_NeoPixel strip4 = Adafruit_NeoPixel(170, 9, NEO_GRB + NEO_KHZ800); Adafruit_NeoPixel leds5 = Adafruit_NeoPixel(170, 14, NEO_GRB + NEO_KHZ800);

Artnet artnet; uint8_t *data;

byte ip[] = {10, 0, 1, 100}; byte mac[] = {0x04, 0xE9, 0xE5, 0x00, 0x69, 0xEC}; byte broadcast[] = {10,255,255,255}; byte subnet [] = {255,0,0,0}; byte dns [] = {}; byte gateway [] = {};

int first_universe = 10;

void setup() { Serial.begin(9600);

leds.begin(); strip.begin(); leds2.begin(); strip2.begin(); leds3.begin(); strip3.begin(); leds4.begin(); strip4.begin(); leds5.begin(); initTest(); Ethernet.begin(mac, ip, dns, gateway, subnet); artnet.begin();

artnet.setBroadcast(broadcast);

}

void loop() {

uint16_t r = artnet.read(); uint16_t uni = artnet.getUniverse();

if (r == ART_DMX && uni == first_universe){ data = artnet.getDmxFrame(); for (int i = 0; i < 170; i++){ leds.setPixelColor(i, data[i3], data[i3 + 1], data[i*3 + 2]);} leds.show();}

if (r == ART_DMX && uni == first_universe + 1){ data = artnet.getDmxFrame(); for (int i = 0; i < 170; i++){ strip.setPixelColor(i, data[i3], data[i3 + 1], data[i*3 + 2]);} strip.show();}

if (r == ART_DMX && uni == first_universe + 2){ data = artnet.getDmxFrame(); for (int i = 0; i < 170; i++){ leds2.setPixelColor(i, data[i3], data[i3 + 1], data[i*3 + 2]);} leds2.show();}

if (r == ART_DMX && uni == first_universe + 3){ data = artnet.getDmxFrame(); for (int i = 0; i < 170; i++){ strip2.setPixelColor(i, data[i3], data[i3 + 1], data[i*3 + 2]);} strip2.show();}

if (r == ART_DMX && uni == first_universe + 4){ data = artnet.getDmxFrame(); for (int i = 0; i < 170; i++){ leds3.setPixelColor(i, data[i3], data[i3 + 1], data[i*3 + 2]);} leds3.show();}

if (r == ART_DMX && uni == first_universe + 5){ data = artnet.getDmxFrame(); for (int i = 0; i < 170; i++){ strip3.setPixelColor(i, data[i3], data[i3 + 1], data[i*3 + 2]);} strip3.show();}

if (r == ART_DMX && uni == first_universe + 6){ data = artnet.getDmxFrame(); for (int i = 0; i < 170; i++){ leds4.setPixelColor(i, data[i3], data[i3 + 1], data[i*3 + 2]);} leds4.show();}

if (r == ART_DMX && uni == first_universe + 7){ data = artnet.getDmxFrame(); for (int i = 0; i < 170; i++){ strip4.setPixelColor(i, data[i3], data[i3 + 1], data[i*3 + 2]);} strip4.show();}

if (r == ART_DMX && uni == first_universe + 8){ data = artnet.getDmxFrame(); for (int i = 0; i < 170; i++){ leds5.setPixelColor(i, data[i3], data[i3 + 1], data[i*3 + 2]);} leds5.show();}

}

void initTest() { for (int i = 0 ; i < 170 ; i++){ leds.setPixelColor(i, 127, 0, 0); leds.show(); strip.setPixelColor(i, 127, 0, 0); strip.show(); leds2.setPixelColor(i, 127, 0, 0); leds2.show(); strip2.setPixelColor(i, 127, 0, 0); strip2.show(); leds3.setPixelColor(i, 127, 0, 0); leds3.show(); strip3.setPixelColor(i, 127, 0, 0); strip3.show(); leds4.setPixelColor(i, 127, 0, 0); leds4.show(); strip4.setPixelColor(i, 127, 0, 0); strip4.show(); leds5.setPixelColor(i, 127, 0, 0); leds5.show();} delay(300); for (int i = 0 ; i < 170 ; i++){ leds.setPixelColor(i, 0, 127, 0); leds.show(); strip.setPixelColor(i, 0, 127, 0); strip.show(); leds2.setPixelColor(i, 0, 127, 0); leds2.show(); strip2.setPixelColor(i, 0, 127, 0); strip2.show(); leds3.setPixelColor(i, 0, 127, 0); leds3.show(); strip3.setPixelColor(i, 0, 127, 0); strip3.show(); leds4.setPixelColor(i, 0, 127, 0); leds4.show(); strip4.setPixelColor(i, 0, 127, 0); strip4.show(); leds5.setPixelColor(i, 0, 127, 0); leds5.show();} delay(300); for (int i = 0 ; i < 170 ; i++){ leds.setPixelColor(i, 0, 0, 127); leds.show(); strip.setPixelColor(i, 0, 0, 127); strip.show(); leds2.setPixelColor(i, 0, 0, 127); leds2.show(); strip2.setPixelColor(i, 0, 0, 127); strip2.show(); leds3.setPixelColor(i, 0, 0, 127); leds3.show(); strip3.setPixelColor(i, 0, 0, 127); strip3.show(); leds4.setPixelColor(i, 0, 0, 127); leds4.show(); strip4.setPixelColor(i, 0, 0, 127); strip4.show(); leds5.setPixelColor(i, 0, 0, 127); leds5.show();} delay(300); for (int i = 0 ; i < 170 ; i++){ leds.setPixelColor(i, 0, 0, 0); leds.show(); strip.setPixelColor(i, 0, 0, 0); strip.show(); leds2.setPixelColor(i, 0, 0, 0); leds2.show(); strip2.setPixelColor(i, 0, 0, 0); strip2.show(); leds3.setPixelColor(i, 0, 0, 0); leds3.show(); strip3.setPixelColor(i, 0, 0, 0); strip3.show(); leds4.setPixelColor(i, 0, 0, 0); leds4.show(); strip4.setPixelColor(i, 0, 0, 0); strip4.show(); leds5.setPixelColor(i, 0, 0, 0); leds5.show();} }

[lyon470]

I have now changed to the OctoWS2811 library and this worked perfect but suddeny it started to lack and now no matter what i do it doesn't stop to lack. I use the demo Sketch artnet_octows2811 and only changed ip and the leds.

[natcl]

But it worked fine at some point ? Anything in your network sending alot of data?

-- lecaude.com studioimaginaire.com

Le 17 avr. 2019 à 14:09, lyon470 [email protected] a écrit :

I have now changed to the OctoWS2811 library and this worked perfect but suddeny it started to lack and now no matter what i do it doesn't stop to lack. I use the demo Sketch artnet_octows2811 and only changed ip and the leds.

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[MathieuMH]

@lyon470 have you tried the fasted library? It looks very promising since it is more efficient per pixel. This should allow more data to be processed.

[xseignard]

Hello, Teensy 3.2 + octows2811 lib is the best match for teensy based artnet pixel controller (thanks to the DMA buffers, not sure fastled would bring any improvements in a case of artnet only controller).

Few things to do/respect for improved perfs:

• use w5500!! because of its larger i/o buffers
• use UNICAST!!
• reduce the MAX_SOCK_NUM to 1, e.g. replace the following highlighted code: https://github.com/PaulStoffregen/Ethernet/blob/master/src/Ethernet.h#L36-L40 by:

#define MAX_SOCK_NUM 1

• enable ETHERNET_LARGE_BUFFERS , e.g. uncomment the following line: https://github.com/PaulStoffregen/Ethernet/blob/master/src/Ethernet.h#L48
• increase SPI clock speed, e.g. comment the following line (https://github.com/PaulStoffregen/Ethernet/blob/master/src/utility/w5100.h#L21) and uncomment this one (https://github.com/PaulStoffregen/Ethernet/blob/master/src/utility/w5100.h#L28)

Now you have increased the perfs of the Ethernet lib. After that there's few more tricks on the octows2811 lib you can do if you don't need a drawing buffer (it should be the case if you exclusively controls the leds from resolume)

OctoWS2811 leds(MAX_NUM_LED_PER_OUTPUT, displayMemory, NULL, ledConfig);

Like this you'd be able to control 8 outs @ 44fps on teensy 3.2

[manuelgonzalvez]

Hi @xseignard , thanks for your tips. do you have any working example for this?.

When you say

Like this you'd be able to control 8 outs @ 44fps on teensy 3.2

8 universes? i need about 13-16. is this possible?

Thanks in advance.

[McAleerElk]

Hi @xseignard , thanks for your tips. do you have any working example for this?.

When you say

Like this you'd be able to control 8 outs @ 44fps on teensy 3.2

8 universes? i need about 13-16. is this possible?

Thanks in advance.

Did you ever get a reply m8? Or did you test out how many universes you could drive per output?

[McAleerElk]

Yeah many thanks i tested it now with 13 universes without lacking.

But now i have another Problem/issue. Resolume shows me all artnet nodes in my Network, also the Arduino. As soon as i tell resolume to send unicast the Arduino isn't anymore in the artnet node list. When i now change back to broadcast ,the Arduino receives the artnet but isn't in the artnet node list from resolume.

I use the one socket lib from the pjrc Forum. Hope you can help me.

Is this from one single output?

As I'm aware, the LED itself becomes a bottleneck, as it can only parse so much data, if you want to uphold a given FPS (30Hz or any other number). It receives PWM, bites off the first 3 or 4 bytes (RGB or RGBW), and outputs the remaining part of the signal. But - if you try to feed it 8 universes of PWM signal, it cannot parse it fast enough, and this delay with stack for each LED - adding latency/lagg or similar.

Does anyone experience this problem? Is it not a problem in practice?

8 universes is 27 meters of LED if RGB-pixels are used... That's quite a lot. And you can have multiple outputs simultaneously?

[joex92]

Hi, I got a Teensy4.1 with the ethernet kit... tried the receiver example and I'm getting up to 4 universes and a half (i get data up to 2304 channels) how do I get more universes?

[natcl]

What example are you using ?

[joex92]

@natcl this one: https://github.com/natcl/Artnet/blob/master/examples/Basic/ArtnetReceive/ArtnetReceive.ino I made some minor changes:

/*
This is a basic example that will print out the header and the content of an ArtDmx packet.
This example uses the read() function and the different getter functions to read the data.
This example may be copied under the terms of the MIT license, see the LICENSE file for details
*/

#include <Artnet.h>
#include <NativeEthernet.h>
#include <NativeEthernetUdp.h>
#include <SPI.h>

Artnet artnet;

// Change ip and mac address for your setup
byte ip[] = {2, 0, 0, 2};
byte broadcast[] = {2, 255, 255, 255};
byte mac[] = {0x04, 0xE9, 0xE5, 0x00, 0x69, 0xEC};

void setup()
{
  Serial.begin(115200);
  Serial.println("Starting...");
  artnet.begin(mac, ip);
  artnet.setBroadcast(broadcast);
}

void loop()
{
  uint16_t r = artnet.read();
  if(r == ART_POLL)
  {
    Serial.println("POLL");
  }
  if (r == ART_DMX)
  {
    // print out our data
    Serial.print("universe number = ");
    Serial.print(artnet.getUniverse());
    Serial.print("\tdata length = ");
    Serial.print(artnet.getLength());
    Serial.print("\tsequence n0. = ");
    Serial.println(artnet.getSequence());
    Serial.print("DMX data: ");
    for (int i = 0 ; i < artnet.getLength() ; i++)
    {
      const int ch = i + artnet.getUniverse() * 512;
      if ( ch < 10 )
        Serial.print(" ");
      if ( ch < 100 )
        Serial.print(" ");
      if ( ch < 1000 )
        Serial.print(" ");
      Serial.print(ch);
      Serial.print(":");
      const int v = artnet.getDmxFrame()[i];
      if ( v < 10 )
        Serial.print(" ");
      if ( v < 100 )
        Serial.print(" ");
      Serial.print(v);
      Serial.print("  ");
    }
    Serial.println();
    Serial.println();
  }
}

I had to change Ethernet.h and EthernetUDP.h to NativeEthernet.h and NativeEthernetUdp.h for this code to work... I'm just printing the data sent to it... I'm sending 2304 channels, which would take 4 universes and a half... I'm getting all the data, but more than that and data is lost...

[joex92]

I added some spaces depending on the values for better reading...

thing is that when I try sending more data, like a fixture of more than 2304 channels, data is lost... for example, I set a LRGB fixture of 128px12p, and only getting the top 128x4 but occasionally getting the 11th row or the 4th row is incomplete... it's weird... is it a limitation from the ethernet chip on the Teensy? or maybe is it a limitation on the ethernet cable? is the ethernet kit? is it the Ethernet library? is it my Ethernet adapter on the computer?