ESP-12E troubleshooting (rst cause:2, boot mode:(3,6)) #2414
Description
Basic Infos
Hardware
Hardware: ESP-12E (ESP8266MOD)
Core Version: 2.3.0
Description
Hi. Previously, I was able to flash ESP through Arduino IDE. The code worked well, although very often controller restarted with no reason. "... wdt reset ..." has been written to the COM port. I tried to turn off the watch dog timer with the help of ESP.wdtDisable() or simply to increase the timeout with ESP.wdtEnable(65535). This partly solves the problem, but restarts still have a place to be.
But now, after a regular flashing I get this output in COM port:
ets Jan 8 2013,rst cause:2, boot mode:(3,6)
load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v09f0c112
~ld
And that's all. I tried to change the module in the IDE to "ESP8266 Generic", and to change the size of the memory, but no result. What could be the problem? And how to fix this behavior?
Settings in IDE
Module: NodeMCU 1.0
Flash Size: 4MB/3MB
CPU Frequency: 80Mhz
Upload Using: SERIAL
Sketch
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <FS.h>
#define DEV true
#define STEPPER_EN_PIN 13
#define STEPPER_DIR_PIN 2
#define STEPPER_STEP_PIN 5
#define STEPPER_RPM 600
#define STEPPER_GEAR_RATIO 64
#define STEPPER_MICROSTEP 16
#define STEPPER_FULL_ROTATION 7000
#define SERVER_URL "example.com"
#define SERVER_PORT 80
#define SERVER_CONNECTION_INTERVAL 10000
#define WIFI_DATA_FILENAME "/wifi.txt"
#define WIFI_CONNECTION_TIMEOUT 10000
ESP8266WebServer server(80);
char* ssid = new char[32];
char* password = new char[64];
bool jalousieState;
void moveStepper(unsigned long steps, bool direction) {
unsigned long period = 60000000L / (STEPPER_RPM * STEPPER_GEAR_RATIO * STEPPER_MICROSTEP * 2UL);
steps *= STEPPER_GEAR_RATIO;
Serial.print("Period = ");
Serial.println(period);
digitalWrite(STEPPER_DIR_PIN, direction);
digitalWrite(STEPPER_EN_PIN, LOW);
for (int i = 0; i < steps; i++) {
digitalWrite(STEPPER_STEP_PIN, HIGH);
delayMicroseconds(period);
digitalWrite(STEPPER_STEP_PIN, LOW);
delayMicroseconds(period);
ESP.wdtFeed();
}
digitalWrite(STEPPER_EN_PIN, HIGH);
}
void jalousieClose() {
if (!jalousieState)
return;
Serial.println("Closing jalousie");
moveStepper(STEPPER_FULL_ROTATION, 1);
jalousieState = false;
}
void jalousieOpen() {
if (jalousieState)
return;
Serial.println("Opening jalousie");
moveStepper(STEPPER_FULL_ROTATION, 0);
jalousieState = true;
}
void jalousieHome() {
moveStepper(STEPPER_FULL_ROTATION, 1);
jalousieState = false;
}
void handleWiFiCredentials() {
if (!server.hasArg("SSID") || !server.hasArg("password")) { server.send(500, "text/plain", "Bag arguments"); return; }
Serial.print("WiFi Credentials:\nSSID: ");
Serial.println(server.arg("SSID"));
Serial.print("Password: ");
Serial.println(server.arg("password"));
File wifiData = SPIFFS.open(WIFI_DATA_FILENAME, "w");
wifiData.println(server.arg("SSID"));
wifiData.println(server.arg("password"));
wifiData.close();
server.send(200, "text/plain", "Data saved");
ESP.reset();
}
bool loadWiFiCredentials() {
File wifiData = SPIFFS.open(WIFI_DATA_FILENAME, "r");
if (!wifiData)
return false;
String _ssid = wifiData.readStringUntil('\n');
_ssid.trim();
_ssid.toCharArray(ssid, 32);
String _password = wifiData.readStringUntil('\n');
_password.trim();
_password.toCharArray(password, 64);
wifiData.close();
return true;
}
void setup() {
// Make the watch dog timeout longer
ESP.wdtEnable(65535);
Serial.begin(74880);
Serial.setDebugOutput(DEV);
pinMode(STEPPER_EN_PIN, OUTPUT);
pinMode(STEPPER_DIR_PIN, OUTPUT);
pinMode(STEPPER_STEP_PIN, OUTPUT);
digitalWrite(STEPPER_EN_PIN, HIGH);
// Initialize filesystem
SPIFFS.begin();
bool loaded = loadWiFiCredentials();
if (loaded) {
Serial.println("WiFi credentials loaded");
unsigned long connectionTime = millis();
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(100);
if (millis() - connectionTime > WIFI_CONNECTION_TIMEOUT) {
Serial.println("Connection failed. Ereasing old Wifi credentials and starting AP to get new credentials.");
SPIFFS.remove(WIFI_DATA_FILENAME);
ESP.reset();
}
}
} else {
Serial.println("WiFi credentials not found, starting AP");
WiFi.mode(WIFI_AP);
WiFi.softAP("Pentagon228");
server.serveStatic("/", SPIFFS, "/public_html/WifiSetup.html");
server.serveStatic("/WifiSetup.css", SPIFFS, "/public_html/WifiSetup.css");
server.serveStatic("/WifiSetup.js", SPIFFS, "/public_html/WifiSetup.jsl");
server.on("/submit", HTTP_POST, handleWiFiCredentials);
server.begin();
while(1) {
server.handleClient();
ESP.wdtFeed();
}
}
jalousieHome();
}
void loop() {
delay(SERVER_CONNECTION_INTERVAL);
Serial.println("I'm alive");
WiFiClient client;
if (!client.connect(SERVER_URL, SERVER_PORT))
return;
client.print(String("GET / HTTP/1.1\r\n") +
"Host:" + SERVER_URL + ":" + SERVER_PORT + "\r\n" +
"Connection: close\r\n\r\n");
unsigned long timeout = millis();
while (client.available() == 0) {
ESP.wdtFeed();
delay(100);
if (millis() - timeout > 5000) {
client.stop();
return;
}
}
while(client.available()){
String line = client.readStringUntil('\r');
Serial.println("Res: " + line);
line.trim();
if (line.equals(String("open"))) {
jalousieOpen();
return;
} else if (line.equals(String("close"))) {
jalousieClose();
return;
}
}
}