ARTNET on WIFI :-)

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asm
Posts: 58
Joined: Sun Jul 17, 2016 8:22 am
Location: Denmark
Real Name: Allan Madsen

So I am in the process of making Artnet with WIFI.
Uses a WEMOS D1 Mini and has 8 x 5 RGB (WS2812) coupled up.
Right now there is a universe but expects to be a minimum of 4 universes.
Here is link to WEMOS D1 MINI https://www.wemos.cc/product/d1-mini.html
DI on WS2812 is coupled to pin D1 at Wemos D1 mini.
Power (5V) is connected to GND and (5v) is connected to the WS2812 and legs (5V) at Wemos D1 mini.
Right now I run it from QLC + on my PCs.
That is it.

Code to upload in Wemos D1 mini.
Remember to set up the IP and the SSID and password.

Code: Select all


/*
  Single Universe ArtNet to WS2812 Driver For theWemos D1 mini
  You can set the Device IP, and universe number below
  Works also with Jinx LED software
  link to the Wemos D1 mini https://www.wemos.cc/product/d1-mini.html
*/

#include <ESP8266WiFi.h>
#include <WiFiUdp.h>

#define WSout 5  // Pin D1
#define WSbit (1<<WSout)

// ARTNET CODES
#define ARTNET_DATA 0x50
#define ARTNET_POLL 0x20
#define ARTNET_POLL_REPLY 0x21
#define ARTNET_PORT 6454
#define ARTNET_HEADER 17

WiFiUDP udp;

uint8_t uniData[514];
uint16_t uniSize;
uint8_t hData[ARTNET_HEADER + 1];
uint8_t net = 0;
uint8_t universe = 0;
uint8_t subnet = 0;

const char* ssid     = "xxxx"; //  Set your SSID name here.
const char* password = "yyyy"; // Set the password for your network her

IPAddress local_ip(192, 168, 3, 100);   // The address for this Artnet modul
IPAddress gateway_ip(192, 168, 0, 1); // This is the gateway to my router
IPAddress subnet_ip(255, 255, 0, 0);  // My netmask

void setup() {
  Serial.begin(115200);
  delay(10);
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);
  WiFi.config(local_ip, gateway_ip, subnet_ip);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  udp.begin(ARTNET_PORT); // Open ArtNet port

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());

  pinMode(WSout, OUTPUT);
}



void ICACHE_FLASH_ATTR sendWS() {
  uint32_t writeBits;
  uint8_t  bitMask, time;
  os_intr_lock();
  for (uint16_t t = 0; t < uniSize; t++) { // outer loop counting bytes
    bitMask = 0x80;
    while (bitMask) {
      // time=0ns : start by setting bit on
      time = 4;
      while (time--) {
        WRITE_PERI_REG( 0x60000304, WSbit );  // do ON bits // T=0
      }
      if ( uniData[t] & bitMask ) {
        writeBits = 0;  // if this is a '1' keep the on time on for longer, so dont write an off bit
      }
      else {
        writeBits = WSbit;  // else it must be a zero, so write the off bit !
      }
      time = 4;
      while (time--) {
        WRITE_PERI_REG( 0x60000308, writeBits );  // do OFF bits // T='0' time 350ns
      }
      time = 6;
      while (time--) {
        WRITE_PERI_REG( 0x60000308, WSbit );  // switch all bits off  T='1' time 700ns
      }
      // end of bite write time=1250ns
      bitMask >>= 1;
    }
  }
  os_intr_unlock();
}

void loop() {
  if (udp.parsePacket()) {
    udp.read(hData, ARTNET_HEADER + 1);
    if ( hData[0] == 'A' && hData[1] == 'r' && hData[2] == 't' && hData[3] == '-' && hData[4] == 'N' && hData[5] == 'e' && hData[6] == 't') {
      if ( hData[8] == 0x00 && hData[9] == ARTNET_DATA && hData[15] == net ) {
        if ( hData[14] == (subnet << 4) + universe ) { // UNIVERSE
          uniSize = (hData[16] << 8) + (hData[17]);
          udp.read(uniData, uniSize);
          Serial.print("ArtNet Univers 0 packet RX  - size:");
          Serial.print(uniSize);
          Serial.println(" ");
          sendWS();
        }
      } // if Artnet Data
    }
  }
}

mmurphy
Posts: 2
Joined: Mon Feb 19, 2018 1:19 pm
Real Name: Mike Murphy

I would like to ask for your help as I am having trouble getting mine working.
I am using a WEMOS D1 R1 https://www.banggood.com/WeMos-D1-R2-Wi ... 11870.html
and an Ardiuno DMX shield https://www.tindie.com/products/Concept ... m-capable/

I used your code with my network settings. I get the
WiFi connected
IP address:
192.168.0.113
in the Ardiono IDE serial monitor
but no response from from QLC
Any tips?
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