ESP8266 Community Forum

- Mon Jul 06, 2015 5:43 am #22553 Hello friends

I recently bought this development board http://www.aliexpress.com/snapshot/6714 ... 1083055430 I wrote the code to control the WS2812 pixels through ArtNet protocol but I have a problem code is often suddenly resets know anyone tell me where the problem may be there is a report of a reset and code.

ets Jan 8 2013,rst cause:4, boot mode:(3,7)

wdt reset
load 0x40100000, len 28916, room 16
tail 4
chksum 0xe6
load 0x3ffe8000, len 1580, room 4
tail 8
chksum 0x68
load 0x3ffe8630, len 2980, room 0
tail 4
chksum 0xb9
csum 0xb9

code:

#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
#include "WiFiUdp.h"
#include "Artnet.h"
#include <SPI.h>
#include <Adafruit_NeoPixel.h>
#include <Wire.h>
#include <OLED_SSD1306.h>

#define OLED_ADDRESS 0x78 //OLED I2C bus address

// Neopixel settings
const int numLeds1 = 170;
const int numLeds2 = 170;
const int numLeds3 = 170;
const int numLeds4 = 170;
//GPIO Out settings
const byte dataPin1 = 14;
const byte dataPin2 = 12;
const byte dataPin3 = 13;
const byte dataPin4 = 15;

#define OLED_SDA 3
#define OLED_SCL 1

OLED_SSD1306 oled;

Adafruit_NeoPixel strip1 = Adafruit_NeoPixel(numLeds1, dataPin1, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel strip2 = Adafruit_NeoPixel(numLeds2, dataPin2, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel strip3 = Adafruit_NeoPixel(numLeds3, dataPin3, NEO_GRB + NEO_KHZ800);
Adafruit_NeoPixel strip4 = Adafruit_NeoPixel(numLeds4, dataPin4, NEO_GRB + NEO_KHZ800);

// Artnet settings
Artnet artnet;

//STA DHCP - ON/OFF
boolean useDHCP = true;

uint8_t ip[] = {192, 168, 2, 100};
uint8_t gw[] = {192, 168, 2, 2};
uint8_t mask[] = {255, 255, 255, 0};
uint8_t mac[] = {0x04, 0xE9, 0xE5, 0x00, 0x69, 0xEC};
const char* ssid = "STASSID";
const char* password = "STAPASSWORD";

const char* APssid = "AP Mode";
const char* APpassword = "";

void setup()
{
WiFi.begin(ssid, password);
if (!useDHCP) {
WiFi.config(ip, gw, mask);
}

WiFi.mode(WIFI_AP_STA);
WiFi.softAP(APssid, APpassword);
Serial.begin(115200);
pinMode(16, OUTPUT);
digitalWrite(16, LOW);

strip1.begin();
strip2.begin();
strip3.begin();
strip4.begin();

Wire.begin( OLED_SDA, OLED_SCL );
oled.Init();
oled.ClearDisplay();
oled.SendStrXY( "ArtNet - PIX", 0, 2 );
oled.SendStrXY( "Pixel Test", 5, 3 );
oled.SendStrXY( "FW v1.0.0.", 2, 3 );
initTest();
oled.SendStrXY( "AP Mode Running", 7, 0 );
while (WiFi.status() != WL_CONNECTED) {
oled.SendStrXY( "Connecting ", 5, 1 );
delay(500);
oled.SendStrXY( "Connecting.", 5, 1 );
delay(500);
oled.SendStrXY( "Connecting..", 5, 1 );
delay(500);
oled.SendStrXY( "Connecting...", 5, 1 );
delay(500);
}
WiFi.mode(WIFI_STA);
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
digitalWrite(16, HIGH);
oled.SendStrXY( "WiFi Connected", 5, 1 );
oled.SendStrXY( "AP Mode Disable", 7, 0 );
delay(4000);
char result[16];
sprintf(result, "IP:%d.%d.%d.%d", WiFi.localIP()[0], WiFi.localIP()[1], WiFi.localIP()[2], WiFi.localIP()[3]);
oled.SendStrXY("IP: ", 7, 0);
oled.SendStrXY(result, 7, 0);
delay(1000);
artnet.begin(mac, ip);
artnet.setArtDmxCallback(onDmxFrame1);
}

void loop()

{
if (WiFi.status() != WL_CONNECTED) {
oled.ClearDisplay();
oled.SendStrXY( "ArtNet - PIX", 0, 2 );
oled.SendStrXY( "FW v1.0.0.", 2, 3 );
oled.SendStrXY( "Connecting Error", 5, 0 );
oled.SendStrXY( "Rebooting...", 7, 2 );
digitalWrite(16, LOW);
ESP.restart();
while(true);

}else{
artnet.read();
}
}

void onDmxFrame1(uint16_t universe, uint16_t length, uint8_t sequence, uint8_t* data)
{
if (universe == 0) {
// read universe and put into the right part of the display buffer
for (int i = 0; i < numLeds1; i++)
{
strip1.setPixelColor(i, data[i * 3], data[i * 3 + 1], data[i * 3 + 2]);
}
strip1.show();
}
if (universe == 1) {

for (int i = 0; i < numLeds2; i++)
{
strip2.setPixelColor(i, data[i * 3], data[i * 3 + 1], data[i * 3 + 2]);
}
strip2.show();
}
if (universe == 2) {

for (int i = 0; i < numLeds3; i++)
{
strip3.setPixelColor(i, data[i * 3], data[i * 3 + 1], data[i * 3 + 2]);
}
strip3.show();
}
if (universe == 3) {

for (int i = 0; i < numLeds4; i++)
{
strip4.setPixelColor(i, data[i * 3], data[i * 3 + 1], data[i * 3 + 2]);
}
strip4.show();
}
}
void initTest()
{
for (int i = 0 ; i < numLeds1 ; i++)
strip1.setPixelColor(i, 255, 0, 0);
for (int i = 0 ; i < numLeds2 ; i++)
strip2.setPixelColor(i, 255, 0, 0);
for (int i = 0 ; i < numLeds3 ; i++)
strip3.setPixelColor(i, 255, 0, 0);
for (int i = 0 ; i < numLeds4 ; i++)
strip4.setPixelColor(i, 255, 0, 0);

strip1.show();
strip2.show();
strip3.show();
strip4.show();
delay(1000);

for (int i = 0 ; i < numLeds1 ; i++)
strip1.setPixelColor(i, 0, 255, 0);
for (int i = 0 ; i < numLeds2 ; i++)
strip2.setPixelColor(i, 0, 255, 0);
for (int i = 0 ; i < numLeds3 ; i++)
strip3.setPixelColor(i, 0, 255, 0);
for (int i = 0 ; i < numLeds4 ; i++)
strip4.setPixelColor(i, 0, 255, 0);

strip1.show();
strip2.show();
strip3.show();
strip4.show();
delay(1000);

for (int i = 0 ; i < numLeds1 ; i++)
strip1.setPixelColor(i, 0, 0, 255);
for (int i = 0 ; i < numLeds2 ; i++)
strip2.setPixelColor(i, 0, 0, 255);
for (int i = 0 ; i < numLeds3 ; i++)
strip3.setPixelColor(i, 0, 0, 255);
for (int i = 0 ; i < numLeds4 ; i++)
strip4.setPixelColor(i, 0, 0, 255);

strip1.show();
strip2.show();
strip3.show();
strip4.show();
delay(1000);

for (int i = 0 ; i < numLeds1 ; i++)
strip1.setPixelColor(i, 0, 0, 0);
for (int i = 0 ; i < numLeds2 ; i++)
strip2.setPixelColor(i, 0, 0, 0);
for (int i = 0 ; i < numLeds3 ; i++)
strip3.setPixelColor(i, 0, 0, 0);
for (int i = 0 ; i < numLeds4 ; i++)
strip4.setPixelColor(i, 0, 0, 0);

strip1.show();
strip2.show();
strip3.show();
strip4.show();
}

- Mon Jul 06, 2015 10:03 am #22580 I'd suggest adding your code as a text file attachment. It is too difficult to read in the format presented in the forum post.

Free ESP8266 book available for download here.

- Mon Jul 06, 2015 10:43 am #22590 Here's the code in a text document

You do not have the required permissions to view the files attached to this post.

- Mon Jul 06, 2015 11:06 am #22593 Aha ... the clue was in the exception message ... the second line down says "wdt reset". What that means is that your code did not yield control back to the ESP8266 OS within about 50ms. In classic Arduino programming, the only thing running on the Arduino is the application you write. As such, you pretty much know what is going on at all times. In the ESP8266, it must maintain and service WiFi and Internet traffic. When it is otherwise idle, it is then able to process your own application code. However, your code can't "hold on to the processor" forever. If you hold on for too long, the ESP8266 resets itself thinking that will cure it all up.

Somewhere in the logic of your program you are either looping or blocking too long and the watchdog timer is firing.

Free ESP8266 book available for download here.