Open paulcaillard opened 2 years ago
It's hard to tell. How many Art-Net frames per second? How many Art-Net channels? Only one LED, just brightness up and down?
Can you share your code, maybe a snipped?
The onDmxFrame()
should only be a one-liner, am I right?
In many cases it's just bad WiFi.
Here's my code :
#include <ArtnetWifi.h>
#include <Arduino.h>
// PWM
const int freq = 5000; // 5000 Hz
const int ledChannel = 0;
const int resolution = 8; // Résolution de 8 bits
// LED COB RGBW
const int ledPinR = 15;
int ledValueR;
// WIFI
const char* ssid = "xxxxx";
const char* password = "xxxxx";
WiFiUDP UdpSend;
// connect to wifi – returns true if successful or false if not
bool ConnectWifi(void)
{
bool state = true;
int i = 0;
WiFi.begin(ssid, password);
Serial.println("");
Serial.println("Connecting to WiFi");
// Wait for connection
Serial.print("Connecting");
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
if (i > 20){
state = false;
break;
}
i++;
}
if (state) {
Serial.println("");
Serial.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(IPAddress(WiFi.localIP()));
} else {
Serial.println("");
Serial.println("Connection failed.");
}
return state;
}
// ARTNET
ArtnetWifi artnet;
const int startUniverse = 0; // CHANGE FOR YOUR SETUP most software this is 1, some software send out artnet first universe as 0.
const int numberOfChannels = 3; // Total number of channels you want to receive
// Check if we got all universes
const int maxUniverses = numberOfChannels / 512 + ((numberOfChannels % 512) ? 1 : 0);
bool universesReceived[maxUniverses];
bool sendFrame = 1;
void onDmxFrame(uint16_t universe, uint16_t length, uint8_t sequence, uint8_t* data) {
sendFrame = 1;
// range check
if (universe < startUniverse)
{
return;
}
uint8_t index = universe - startUniverse;
if (index >= maxUniverses)
{
return;
}
// Store which universe has got in
universesReceived[index] = true;
for (int i = 0 ; i < maxUniverses ; i++)
{
if (!universesReceived[i])
{
sendFrame = 0;
break;
}
}
if (sendFrame) {
// PWM
ledcWrite(ledChannel, data[1]);
// Reset universeReceived to 0
memset(universesReceived, 0, maxUniverses);
}
}
void setup() {
Serial.begin(115200);
ConnectWifi();
// ARTNET
// this will be called for each packet received
artnet.setArtDmxCallback(onDmxFrame);
artnet.begin();
// PWM
// Configure le channel 0
ledcSetup(ledChannel, freq, resolution);
// Attache le channel 0 sur les 3 pins
ledcAttachPin(ledPinR, ledChannel);
}
void loop() {
// ARTNET
// we call the read function inside the loop
artnet.read();
}
If you think it might be the bad wifi, I would try to create a wifi access point with another ESP32.
I tried to connect my PC & the esp32 to an esp32 wifi access point ; this doesn't work either.
There is nothing wrong with the code. I can reproduce the "error" only if my PC (Art-Net transmitter) is also connected via WiFi. With a cable connection to my PC I don't see a problem at all. A test ran over many hours flawlessly.
So, as I said, bad WiFi is the problem in my opinion.
I'm also having a similar delay problem -- my Artnet transmitter (PC program) is on ethernet, but sometimes it takes 20 seconds or more for the ESP32 to receive the DMX changes. And then sometimes it's immediate, so it's a very strange intermittent problem.
I'm sure it's not this library, but my question is-- where are those Art-Net packets going for 20 or 30 seconds before the ESP32 receives and processes them?
Hello,
I'm using an ESP32 to control a LED COB with a PWM. After the upload, everything is fine. But after 30 sec, the data received by the ESP32 in wifi start to lag. I tried with the debugging program but nothing works: after a few seconds, the data received on the serial are jerky.
I think it's a memory problem, do you have any solutions?