ESP8266 Community Forum

Posted: **Thu Jan 24, 2019 9:36 pm**

hi so i use an esp 8266 to control the dmx dimmer of some lights via mqtt and nodered
The only problem i come across after a few minutes of use it resets at the begining mayebe 30' and after every 10’or more minutes and send these errors :

Code: Select all

`/*

*/
#include <espDMX.h>
#include <ESP8266WiFi.h>
#include <PubSubClient.h>

// Update these with values suitable for your network.

const char* ssid = "ssid";
const char* password = "password";
const char* mqtt_server = "192.168.0.12";

WiFiClient espClient;
PubSubClient client(espClient);
uint32_t lastMsg = 0;
char msg[50];
uint8_t dmxPayload[2];
uint16_t value = 0;

void setup_wifi() {

delay(10);
// We start by connecting to a WiFi network
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);

WiFi.begin(ssid, password);

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

randomSeed(micros());

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

void callback(char* topic, byte* payload, unsigned int length) {
//Serial.println(length);
// Serial.print("Message arrived [");
// Serial.print(topic);
// Serial.print("] ");
// for (int i = 0; i < length; i++) {
// Serial.print((char)payload);
// }
// Serial.println();

// Should really check the topic matches the exact one your subscribed to before using value
for (int i = 0; i < length; i++) {
msg = (char)payload;
}
msg[length] = 0;

int x = atoi(msg);
Serial.println(x);
dmxPayload[0] = (byte)x;
dmxB.setChans(dmxPayload, 1);
}

void reconnect() {
// Loop until we're reconnected
while (!client.connected()) {
Serial.print("Attempting MQTT connection...");
// Attempt to connect
if (client.connect("group1","user","password")) {
Serial.println("connected");
// Once connected, publish an announcement...
client.publish("outlight/dmx1/", "On Dmx Esp");
// ... and resubscribe
client.subscribe("inlight/dmx1/");
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
// Wait 5 seconds before retrying
delay(5000);
}
}
}

void setup() {
// Start dmxA, status LED on pin 12 with full intensity
Serial.begin(115200);
dmxB.begin();
setup_wifi();
client.setServer(mqtt_server, 1883);
client.setCallback(callback);
delay(2000);
}

void loop() {

if (!client.connected()) {
reconnect();
}
client.loop();

if (millis() - lastMsg > 60000) {
lastMsg = millis();
snprintf (msg, 49, "On Dmx Esp");
//snprintf (msg, 49, "On Dmx Esp #%ld", value++);
//Send free memory ram
// uint32_t free = ESP.getFreeHeap();
// itoa(free, msg, 10);

//  Serial.print("Publish message: ");
//  Serial.println(msg);
client.publish("outlight/dmx1/", msg);
}

delay(10);
}`

ERRORS

Code: Select all

`ets Jan 8 2013,rst cause:4, boot mode:(3,6)
wdt reset
load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
vbb28d4a3
~ld

Connecting to hkhkhkhk
.......
WiFi connected
IP address:
192.168.0.110
Attempting MQTT connection...connected

ets Jan 8 2013,rst cause:4, boot mode:(3,6)

wdt reset
load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
vbb28d4a3
~ld

Connecting to hkhkhkhk
...
WiFi connected
IP address:
192.168.0.110`

any help will be really appreciated because I can’t find how to solve the problem .
The only think I know is that it has something to do with watchdog and the WiFi .
thanks in advance
chris

ESP8266 Community Forum

Help esp Dmx dimmer via MQTT errors

Help esp Dmx dimmer via MQTT errors