System does a watch dog reset and outputs a stack Exception (28) after iterating void loop() 100 times, irrespective of any delays added.

[trelelelel02]

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I am trying to connect my ESP-12E NodeMCU v1.0 to a firebase realtime database, whose values are controlled by a simple app I created in MIT App inventor.

My code is quite simple, and I've searched everywhere for the solution but according to the stack my getString("FB"+Number).toInt() seems to be the issue but only on the 100th iteration of void loop. Below is my code and the error.

I am currently using the latest firebase-arduino library, and I'm using ArduinoJson v5 library. I've tried adding yield() around the line but it doesn't do anything.

Any suggestions?

CODE: `#include <ESP8266WiFi.h> // 1 #include <pgmspace.h> #include <FirebaseArduino.h> #define FIREBASE_HOST "XXXXXXXXXX" //Your Firebase Project URL goes here without "http:" , "" and "/" #define FIREBASE_AUTH "XXXXXXXXXXXXXXXXX"

const char* ssid = "XXXXXXXX";//type your ssid const char* password = "XXXXXXXXX";//type your password int i = 1; int rel; int relayPin [9] = {12345, 5, 4, 0, 2, 14, 12, 13, 15}; int previousVal [9] ; int count = 0;

WiFiServer ESPserver(9080);//Service Port void setup() { Serial.begin(115200); ESP.wdtDisable(); for (int i = 1; i < 9; ++i) { pinMode(relayPin[i], OUTPUT); digitalWrite(relayPin[i], HIGH); } // 20 Serial.println(); Serial.println(); Serial.print("Connecting to: "); Serial.println(ssid); WiFi.begin(ssid, password); Serial.println(); delay(5000); while (WiFi.status() != WL_CONNECTED) { delay(100);
Serial.print("*"); } Serial.println(""); Serial.println("WiFi connected"); ESPserver.begin(); Serial.println("Server started"); Serial.println("Connecting to Firebase Database ... "); Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH); Serial.println("Connected"); } void firebasereconnect() { Serial.println("Trying to reconnect"); Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH); }

void loop() { ++count; Serial.println(count); if ((i == 0) || (i == 9)) { i = 1; //50 }

String Number = String(i);

yield(); rel = Firebase.getString("FB" + Number).toInt(); yield();

if (rel == 1) { digitalWrite(relayPin[i], LOW); ++i; return; }

yield(); if (rel == 0) { digitalWrite(relayPin[i], HIGH); ++i; return; } }`

ERROR: `Exception (28): epc1=0x40210e10 epc2=0x00000000 epc3=0x00000000 excvaddr=0x028a02ac depc=0x00000000

stack>>>

ctx: cont sp: 3ffffaf0 end: 3fffffc0 offset: 01a0 3ffffc90: 00000001 00000003 3fff0700 40204440
3ffffca0: 3ffffcf0 3fffff70 3fff0700 40205310
3ffffcb0: 3fffdad0 3fffff70 3fffff20 40203d78
3ffffcc0: 3fffdad0 3ffffcf0 3ffffcf0 40202b38
3ffffcd0: 00000002 3fffff70 3fffff20 40202ba8
3ffffce0: 3fffdad0 3fffff70 3ffe8803 40203c48
3ffffcf0: 00220000 40103b3e 80fed640 40211530
3ffffd00: 00000000 a0000000 00000000 0000001c
3ffffd10: 00004000 00000000 00004000 00000000
3ffffd20: 3ffffe80 00000000 3ffffe80 40217f0a
3ffffd30: 0000a000 3ffffe23 3ffecd70 3ffed89c
3ffffd40: 40102940 00080000 40213cfd 00000001
3ffffd50: 3ffffe80 00000001 3ffffe80 40217f0a
3ffffd60: 3ffffde0 3ffffe22 3ffffd90 00000000
3ffffd70: 40102628 3fffc200 00000022 40217e40
3ffffd80: 3ffffe80 3ffffe22 3ffffde0 40213dfc
3ffffd90: 00000001 00000000 6000001c 3ffffeff
3ffffda0: 3ffe8300 00000000 0000000a 40256570
3ffffdb0: 3ffffe23 00000004 00000000 00000000
3ffffdc0: 00000038 0000007e 00000002 3ffe8ac5
3ffffdd0: 00000000 3ffe8ac4 3ffffe80 4021831b
3ffffde0: 00000000 ffffffff ffffffff 00000000
3ffffdf0: 00000001 00000001 40302064 00000100
3ffffe00: 40103873 00040000 00000000 00040000
3ffffe10: 00000200 40103870 00040000 00000030
3ffffe20: 0034d640 401027d7 3ffed640 017c6520
3ffffe30: 3ffe9d70 2c9f0300 00000000 3fffc278
3ffffe40: 3fffff10 3fffff00 0000000c 3ffe8300
3ffffe50: 00000001 00000009 00000001 ffffffff
3ffffe60: 40207083 00000030 0000001e 3ffeee88
3ffffe70: 0000000a 00000004 3fffff88 402144c8
3ffffe80: 3fffff31 00000000 7ffffffe ffff0208
3ffffe90: 3fffff30 7fffffff 00000001 3ffe8528
3ffffea0: 3ffeecc0 3fffdad0 3ffeee88 3ffeed58
3ffffeb0: 4020590c 3ffeed58 3ffffefd 40205918
3ffffec0: 4020590c 3ffeed58 3ffffefd 40205be1
3ffffed0: 00000031 0000000a 3ffffefc 40205cc5
3ffffee0: 00000001 3fffc6fc 3fffff10 3fffff00
3ffffef0: 00000008 00000001 3fffff88 40206288
3fffff00: 0000000a 00000004 00000000 00000002
3fffff10: 3ffffcf0 00000000 64657463 80feee88
3fffff20: 402114e0 3fff06fc 00000000 3ffeed20
3fffff30: 3fff0890 402114b8 00000001 00000000
3fffff40: 00000100 3ffeed20 3fffff00 3ffeee88
3fffff50: 80ffff88 3fffff88 3fffff7c 402067c5
3fffff60: 3fffdad0 00000000 3ffe8528 40201234
3fffff70: 00000030 3ffeecc4 81feed58 00344246
3fffff80: 00000000 83000000 00000034 4010017c
3fffff90: 81ffdad0 00000000 3ffeee48 4020705d
3fffffa0: 3fffdad0 00000000 3ffeee48 4020716c
3fffffb0: feefeffe feefeffe 3ffe8580 40100ddd
<<<stack<<<

ets Jan 8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16 tail 8 chksum 0x2d csum 0x2d v482516e3 ~ld ⸮cl s⸮ndph `

[Damian-Mora]

Me pasa igual

[Sakib6813]

I am trying to connect my ESP-12E NodeMCU v1.0 to a firebase realtime database, whose values are controlled by a simple app I created in MIT App inventor.

My code is quite simple, and I've searched everywhere for the solution but according to the stack my getString("FB"+Number).toInt() seems to be the issue but only on the 100th iteration of void loop. Below is my code and the error.

I am currently using the latest firebase-arduino library, and I'm using ArduinoJson v5 library. I've tried adding yield() around the line but it doesn't do anything.

Any suggestions?

CODE: `#include <ESP8266WiFi.h> // 1 #include <pgmspace.h> #include <FirebaseArduino.h> #define FIREBASE_HOST "XXXXXXXXXX" //Your Firebase Project URL goes here without "http:" , "" and "/" #define FIREBASE_AUTH "XXXXXXXXXXXXXXXXX"

const char* ssid = "XXXXXXXX";//type your ssid const char* password = "XXXXXXXXX";//type your password int i = 1; int rel; int relayPin [9] = {12345, 5, 4, 0, 2, 14, 12, 13, 15}; int previousVal [9] ; int count = 0;

WiFiServer ESPserver(9080);//Service Port void setup() { Serial.begin(115200); ESP.wdtDisable(); for (int i = 1; i < 9; ++i) { pinMode(relayPin[i], OUTPUT); digitalWrite(relayPin[i], HIGH); } // 20 Serial.println(); Serial.println(); Serial.print("Connecting to: "); Serial.println(ssid); WiFi.begin(ssid, password); Serial.println(); delay(5000); while (WiFi.status() != WL_CONNECTED) { delay(100); Serial.print("*"); } Serial.println(""); Serial.println("WiFi connected"); ESPserver.begin(); Serial.println("Server started"); Serial.println("Connecting to Firebase Database ... "); Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH); Serial.println("Connected"); } void firebasereconnect() { Serial.println("Trying to reconnect"); Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH); }

void loop() { ++count; Serial.println(count); if ((i == 0) || (i == 9)) { i = 1; //50 }

String Number = String(i);

yield(); rel = Firebase.getString("FB" + Number).toInt(); yield();

if (rel == 1) { digitalWrite(relayPin[i], LOW); ++i; return; }

yield(); if (rel == 0) { digitalWrite(relayPin[i], HIGH); ++i; return; } }`

ERROR: `Exception (28): epc1=0x40210e10 epc2=0x00000000 epc3=0x00000000 excvaddr=0x028a02ac depc=0x00000000

stack>>>

ctx: cont sp: 3ffffaf0 end: 3fffffc0 offset: 01a0 3ffffc90: 00000001 00000003 3fff0700 40204440 3ffffca0: 3ffffcf0 3fffff70 3fff0700 40205310 3ffffcb0: 3fffdad0 3fffff70 3fffff20 40203d78 3ffffcc0: 3fffdad0 3ffffcf0 3ffffcf0 40202b38 3ffffcd0: 00000002 3fffff70 3fffff20 40202ba8 3ffffce0: 3fffdad0 3fffff70 3ffe8803 40203c48 3ffffcf0: 00220000 40103b3e 80fed640 40211530 3ffffd00: 00000000 a0000000 00000000 0000001c 3ffffd10: 00004000 00000000 00004000 00000000 3ffffd20: 3ffffe80 00000000 3ffffe80 40217f0a 3ffffd30: 0000a000 3ffffe23 3ffecd70 3ffed89c 3ffffd40: 40102940 00080000 40213cfd 00000001 3ffffd50: 3ffffe80 00000001 3ffffe80 40217f0a 3ffffd60: 3ffffde0 3ffffe22 3ffffd90 00000000 3ffffd70: 40102628 3fffc200 00000022 40217e40 3ffffd80: 3ffffe80 3ffffe22 3ffffde0 40213dfc 3ffffd90: 00000001 00000000 6000001c 3ffffeff 3ffffda0: 3ffe8300 00000000 0000000a 40256570 3ffffdb0: 3ffffe23 00000004 00000000 00000000 3ffffdc0: 00000038 0000007e 00000002 3ffe8ac5 3ffffdd0: 00000000 3ffe8ac4 3ffffe80 4021831b 3ffffde0: 00000000 ffffffff ffffffff 00000000 3ffffdf0: 00000001 00000001 40302064 00000100 3ffffe00: 40103873 00040000 00000000 00040000 3ffffe10: 00000200 40103870 00040000 00000030 3ffffe20: 0034d640 401027d7 3ffed640 017c6520 3ffffe30: 3ffe9d70 2c9f0300 00000000 3fffc278 3ffffe40: 3fffff10 3fffff00 0000000c 3ffe8300 3ffffe50: 00000001 00000009 00000001 ffffffff 3ffffe60: 40207083 00000030 0000001e 3ffeee88 3ffffe70: 0000000a 00000004 3fffff88 402144c8 3ffffe80: 3fffff31 00000000 7ffffffe ffff0208 3ffffe90: 3fffff30 7fffffff 00000001 3ffe8528 3ffffea0: 3ffeecc0 3fffdad0 3ffeee88 3ffeed58 3ffffeb0: 4020590c 3ffeed58 3ffffefd 40205918 3ffffec0: 4020590c 3ffeed58 3ffffefd 40205be1 3ffffed0: 00000031 0000000a 3ffffefc 40205cc5 3ffffee0: 00000001 3fffc6fc 3fffff10 3fffff00 3ffffef0: 00000008 00000001 3fffff88 40206288 3fffff00: 0000000a 00000004 00000000 00000002 3fffff10: 3ffffcf0 00000000 64657463 80feee88 3fffff20: 402114e0 3fff06fc 00000000 3ffeed20 3fffff30: 3fff0890 402114b8 00000001 00000000 3fffff40: 00000100 3ffeed20 3fffff00 3ffeee88 3fffff50: 80ffff88 3fffff88 3fffff7c 402067c5 3fffff60: 3fffdad0 00000000 3ffe8528 40201234 3fffff70: 00000030 3ffeecc4 81feed58 00344246 3fffff80: 00000000 83000000 00000034 4010017c 3fffff90: 81ffdad0 00000000 3ffeee48 4020705d 3fffffa0: 3fffdad0 00000000 3ffeee48 4020716c 3fffffb0: feefeffe feefeffe 3ffe8580 40100ddd <<<stack<<<

ets Jan 8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16 tail 8 chksum 0x2d csum 0x2d v482516e3 ~ld ⸮cl �s⸮n�dph `

Try to add [ while { } ] loop instead of [ if { } ] loop. It will not solve the problem but you would not get any stack error for next 5 muinites or more.. and after the error the wifi will be connected quickly that no lag will be deected on your device... Hope this help you

[Sakib6813]

I am trying to connect my ESP-12E NodeMCU v1.0 to a firebase realtime database, whose values are controlled by a simple app I created in MIT App inventor. My code is quite simple, and I've searched everywhere for the solution but according to the stack my getString("FB"+Number).toInt() seems to be the issue but only on the 100th iteration of void loop. Below is my code and the error. I am currently using the latest firebase-arduino library, and I'm using ArduinoJson v5 library. I've tried adding yield() around the line but it doesn't do anything. Any suggestions? CODE: #include <ESP8266WiFi.h> // 1 #include <pgmspace.h> #include <FirebaseArduino.h> #define FIREBASE_HOST "XXXXXXXXXX" //Your Firebase Project URL goes here without "http:" , "" and "/" #define FIREBASE_AUTH "XXXXXXXXXXXXXXXXX" const char* ssid = "XXXXXXXX";//type your ssid const char* password = "XXXXXXXXX";//type your password int i = 1; int rel; int relayPin [9] = {12345, 5, 4, 0, 2, 14, 12, 13, 15}; int previousVal [9] ; int count = 0; WiFiServer ESPserver(9080);//Service Port void setup() { Serial.begin(115200); ESP.wdtDisable(); for (int i = 1; i < 9; ++i) { pinMode(relayPin[i], OUTPUT); digitalWrite(relayPin[i], HIGH); } // 20 Serial.println(); Serial.println(); Serial.print("Connecting to: "); Serial.println(ssid); WiFi.begin(ssid, password); Serial.println(); delay(5000); while (WiFi.status() != WL_CONNECTED) { delay(100); Serial.print("*"); } Serial.println(""); Serial.println("WiFi connected"); ESPserver.begin(); Serial.println("Server started"); Serial.println("Connecting to Firebase Database ... "); Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH); Serial.println("Connected"); } void firebasereconnect() { Serial.println("Trying to reconnect"); Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH); } void loop() { ++count; Serial.println(count); if ((i == 0) || (i == 9)) { i = 1; //50 } String Number = String(i); yield(); rel = Firebase.getString("FB" + Number).toInt(); yield(); if (rel == 1) { digitalWrite(relayPin[i], LOW); ++i; return; } yield(); if (rel == 0) { digitalWrite(relayPin[i], HIGH); ++i; return; } } ERROR: `Exception (28): epc1=0x40210e10 epc2=0x00000000 epc3=0x00000000 excvaddr=0x028a02ac depc=0x00000000

stack>>>

ctx: cont sp: 3ffffaf0 end: 3fffffc0 offset: 01a0 3ffffc90: 00000001 00000003 3fff0700 40204440 3ffffca0: 3ffffcf0 3fffff70 3fff0700 40205310 3ffffcb0: 3fffdad0 3fffff70 3fffff20 40203d78 3ffffcc0: 3fffdad0 3ffffcf0 3ffffcf0 40202b38 3ffffcd0: 00000002 3fffff70 3fffff20 40202ba8 3ffffce0: 3fffdad0 3fffff70 3ffe8803 40203c48 3ffffcf0: 00220000 40103b3e 80fed640 40211530 3ffffd00: 00000000 a0000000 00000000 0000001c 3ffffd10: 00004000 00000000 00004000 00000000 3ffffd20: 3ffffe80 00000000 3ffffe80 40217f0a 3ffffd30: 0000a000 3ffffe23 3ffecd70 3ffed89c 3ffffd40: 40102940 00080000 40213cfd 00000001 3ffffd50: 3ffffe80 00000001 3ffffe80 40217f0a 3ffffd60: 3ffffde0 3ffffe22 3ffffd90 00000000 3ffffd70: 40102628 3fffc200 00000022 40217e40 3ffffd80: 3ffffe80 3ffffe22 3ffffde0 40213dfc 3ffffd90: 00000001 00000000 6000001c 3ffffeff 3ffffda0: 3ffe8300 00000000 0000000a 40256570 3ffffdb0: 3ffffe23 00000004 00000000 00000000 3ffffdc0: 00000038 0000007e 00000002 3ffe8ac5 3ffffdd0: 00000000 3ffe8ac4 3ffffe80 4021831b 3ffffde0: 00000000 ffffffff ffffffff 00000000 3ffffdf0: 00000001 00000001 40302064 00000100 3ffffe00: 40103873 00040000 00000000 00040000 3ffffe10: 00000200 40103870 00040000 00000030 3ffffe20: 0034d640 401027d7 3ffed640 017c6520 3ffffe30: 3ffe9d70 2c9f0300 00000000 3fffc278 3ffffe40: 3fffff10 3fffff00 0000000c 3ffe8300 3ffffe50: 00000001 00000009 00000001 ffffffff 3ffffe60: 40207083 00000030 0000001e 3ffeee88 3ffffe70: 0000000a 00000004 3fffff88 402144c8 3ffffe80: 3fffff31 00000000 7ffffffe ffff0208 3ffffe90: 3fffff30 7fffffff 00000001 3ffe8528 3ffffea0: 3ffeecc0 3fffdad0 3ffeee88 3ffeed58 3ffffeb0: 4020590c 3ffeed58 3ffffefd 40205918 3ffffec0: 4020590c 3ffeed58 3ffffefd 40205be1 3ffffed0: 00000031 0000000a 3ffffefc 40205cc5 3ffffee0: 00000001 3fffc6fc 3fffff10 3fffff00 3ffffef0: 00000008 00000001 3fffff88 40206288 3fffff00: 0000000a 00000004 00000000 00000002 3fffff10: 3ffffcf0 00000000 64657463 80feee88 3fffff20: 402114e0 3fff06fc 00000000 3ffeed20 3fffff30: 3fff0890 402114b8 00000001 00000000 3fffff40: 00000100 3ffeed20 3fffff00 3ffeee88 3fffff50: 80ffff88 3fffff88 3fffff7c 402067c5 3fffff60: 3fffdad0 00000000 3ffe8528 40201234 3fffff70: 00000030 3ffeecc4 81feed58 00344246 3fffff80: 00000000 83000000 00000034 4010017c 3fffff90: 81ffdad0 00000000 3ffeee48 4020705d 3fffffa0: 3fffdad0 00000000 3ffeee48 4020716c 3fffffb0: feefeffe feefeffe 3ffe8580 40100ddd <<<stack<<< ets Jan 8 2013,rst cause:2, boot mode:(3,6) load 0x4010f000, len 1384, room 16 tail 8 chksum 0x2d csum 0x2d v482516e3 ~ld ⸮cl �s⸮n�dph `

Try to add [ while { } ] loop instead of [ if { } ] loop. It will not solve the problem but you would not get any stack error for next 5 muinites or more.. and after the error the wifi will be connected quickly that no lag will be deected on your device... Hope this help you

sorry my fault... I tried you problem today. and it is solved now. Downgrade your ESP Board manager to 2.5.2 ( By this you will not get any error and no compiling error also )