First time with ESP8266 getting rst cause:4, boot mode:(3,6) when trying WiFi

Projects Programming
1

Hi, just got a D1 mini clone from eBay, got it running successfully with the Blink example sketch from Arduino IDE, now trying Wifi using this guide, ESP8266WiFi library — ESP8266 Arduino Core 3.1.1-5-gbed2fa33 documentation

So I add my SSID and password upload and get the below repeating.

I have googled rst cause:4, boot mode:(3,6) and tried a few suggestions but nothing seems to change, probably missing something obvious here, any ideas?

Thanks

Exception (0):
epc1=0x402301b8 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000

>>>stack>>>

ctx: sys
sp: 3fffedb0 end: 3fffffb0 offset: 0190
3fffef40:  40101845 00000000 00000002 3fffdab0  
3fffef50:  00000000 3fffdad0 3ffee5dc 40201e06  
3fffef60:  3ffe8f28 40000f49 ffffff01 40000f49  
3fffef70:  40000e19 0004273f bff00000 0000bfff  
3fffef80:  00000005 aa55aa55 000000ed 40105211  
3fffef90:  40105217 bff00000 0000bfff 00000000  
3fffefa0:  4010000d bff00000 0004273f 401000ab  
3fffefb0:  402252a4 3fffef4c 4022525d 3fffff28  
3fffefc0:  3fffffd0 00000000 00000000 feefeffe  
3fffefd0:  feefeffe feefeffe feefeffe feefeffe  
3fffefe0:  feefeffe feefeffe feefeffe feefeffe  
3fffeff0:  feefeffe feefeffe feefeffe feefeffe  
3ffff000:  feefeffe feefeffe feefeffe feefeffe  
3ffff010:  feefeffe feefeffe feefeffe feefeffe  
3ffff020:  feefeffe feefeffe feefeffe feefeffe  
3ffff030:  feefeffe feefeffe feefeffe feefeffe  
3ffff040:  feefeffe feefeffe feefeffe feefeffe  
3ffff050:  feefeffe feefeffe feefeffe feefeffe  
3ffff060:  feefeffe feefeffe feefeffe feefeffe  
3ffff070:  feefeffe feefeffe feefeffe feefeffe  
3ffff080:  feefeffe feefeffe feefeffe feefeffe  
3ffff090:  feefeffe feefeffe feefeffe feefeffe  
3ffff0a0:  feefeffe feefeffe feefeffe feefeffe  
3ffff0b0:  feefeffe feefeffe feefeffe feefeffe  
3ffff0c0:  feefeffe feefeffe feefeffe feefeffe  
3ffff0d0:  feefeffe feefeffe feefeffe feefeffe  
3ffff0e0:  feefeffe feefeffe feefeffe feefeffe  
3ffff0f0:  feefeffe feefeffe feefeffe feefeffe  
3ffff100:  feefeffe feefeffe feefeffe feefeffe  
3ffff110:  feefeffe feefeffe feefeffe feefeffe  
3ffff120:  feefeffe feefeffe feefeffe feefeffe  
3ffff130:  feefeffe feefeffe feefeffe feefeffe  
3ffff140:  feefeffe feefeffe feefeffe feefeffe  
3ffff150:  feefeffe feefeffe feefeffe feefeffe  
3ffff160:  feefeffe feefeffe feefeffe feefeffe  
3ffff170:  feefeffe feefeffe feefeffe feefeffe  
3ffff180:  feefeffe feefeffe feefeffe feefeffe  
3ffff190:  feefeffe feefeffe feefeffe feefeffe  
3ffff1a0:  feefeffe feefeffe feefeffe feefeffe  
3ffff1b0:  feefeffe feefeffe feefeffe feefeffe  
3ffff1c0:  feefeffe feefeffe feefeffe feefeffe  
3ffff1d0:  feefeffe feefeffe feefeffe feefeffe  
3ffff1e0:  feefeffe feefeffe feefeffe feefeffe  
3ffff1f0:  feefeffe feefeffe feefeffe feefeffe  
3ffff200:  feefeffe feefeffe feefeffe feefeffe  
3ffff210:  feefeffe feefeffe feefeffe feefeffe  
3ffff220:  feefeffe feefeffe feefeffe feefeffe  
3ffff230:  feefeffe feefeffe feefeffe feefeffe  
3ffff240:  feefeffe feefeffe feefeffe feefeffe  
3ffff250:  feefeffe feefeffe feefeffe feefeffe  
3ffff260:  feefeffe feefeffe feefeffe feefeffe  
3ffff270:  feefeffe feefeffe feefeffe feefeffe  
3ffff280:  feefeffe feefeffe feefeffe feefeffe  
3ffff290:  feefeffe feefeffe feefeffe feefeffe  
3ffff2a0:  feefeffe feefeffe feefeffe feefeffe  
3ffff2b0:  feefeffe feefeffe feefeffe feefeffe  
3ffff2c0:  feefeffe feefeffe feefeffe feefeffe  
3ffff2d0:  feefeffe feefeffe feefeffe feefeffe  
3ffff2e0:  feefeffe feefeffe feefeffe feefeffe  
3ffff2f0:  feefeffe feefeffe feefeffe feefeffe  
3ffff300:  feefeffe feefeffe feefeffe feefeffe  
3ffff310:  feefeffe feefeffe feefeffe feefeffe  
3ffff320:  feefeffe feefeffe feefeffe feefeffe  
3ffff330:  feefeffe feefeffe feefeffe feefeffe  
3ffff340:  feefeffe feefeffe feefeffe feefeffe  
3ffff350:  feefeffe feefeffe feefeffe feefeffe  
3ffff360:  feefeffe feefeffe feefeffe feefeffe  
3ffff370:  feefeffe feefeffe feefeffe feefeffe  
3ffff380:  feefeffe feefeffe feefeffe feefeffe  
3ffff390:  feefeffe feefeffe feefeffe feefeffe  
3ffff3a0:  feefeffe feefeffe feefeffe feefeffe  
3ffff3b0:  feefeffe feefeffe feefeffe feefeffe  
3ffff3c0:  feefeffe feefeffe feefeffe feefeffe  
3ffff3d0:  feefeffe feefeffe feefeffe feefeffe  
3ffff3e0:  feefeffe feefeffe feefeffe feefeffe  
3ffff3f0:  feefeffe feefeffe feefeffe feefeffe  
3ffff400:  feefeffe feefeffe feefeffe feefeffe  
3ffff410:  feefeffe feefeffe feefeffe feefeffe  
3ffff420:  feefeffe feefeffe feefeffe feefeffe  
3ffff430:  feefeffe feefeffe feefeffe feefeffe  
3ffff440:  feefeffe feefeffe feefeffe feefeffe  
3ffff450:  feefeffe feefeffe feefeffe feefeffe  
3ffff460:  feefeffe feefeffe feefeffe feefeffe  
3ffff470:  feefeffe feefeffe feefeffe feefeffe  
3ffff480:  feefeffe feefeffe feefeffe feefeffe  
3ffff490:  feefeffe feefeffe feefeffe feefeffe  
3ffff4a0:  feefeffe feefeffe feefeffe feefeffe  
3ffff4b0:  feefeffe feefeffe feefeffe feefeffe  
3ffff4c0:  feefeffe feefeffe feefeffe feefeffe  
3ffff4d0:  feefeffe feefeffe feefeffe feefeffe  
3ffff4e0:  feefeffe feefeffe feefeffe feefeffe  
3ffff4f0:  feefeffe feefeffe feefeffe feefeffe  
3ffff500:  feefeffe feefeffe feefeffe feefeffe  
3ffff510:  feefeffe feefeffe feefeffe feefeffe  
3ffff520:  feefeffe feefeffe feefeffe feefeffe  
3ffff530:  feefeffe feefeffe feefeffe feefeffe  
3ffff540:  feefeffe feefeffe feefeffe feefeffe  
3ffff550:  feefeffe feefeffe feefeffe feefeffe  
3ffff560:  feefeffe feefeffe feefeffe feefeffe  
3ffff570:  feefeffe feefeffe feefeffe feefeffe  
3ffff580:  feefeffe feefeffe feefeffe feefeffe  
3ffff590:  feefeffe feefeffe feefeffe feefeffe  
3ffff5a0:  feefeffe feefeffe feefeffe feefeffe  
3ffff5b0:  feefeffe feefeffe feefeffe feefeffe  
3ffff5c0:  feefeffe feefeffe feefeffe feefeffe  
3ffff5d0:  feefeffe feefeffe feefeffe feefeffe  
3ffff5e0:  feefeffe feefeffe feefeffe feefeffe  
3ffff5f0:  feefeffe feefeffe feefeffe feefeffe  
3ffff600:  feefeffe feefeffe feefeffe feefeffe  
3ffff610:  feefeffe feefeffe feefeffe feefeffe  
3ffff620:  feefeffe feefeffe feefeffe feefeffe  
3ffff630:  feefeffe feefeffe feefeffe feefeffe  
3ffff640:  feefeffe feefeffe feefeffe feefeffe  
3ffff650:  feefeffe feefeffe feefeffe feefeffe  
3ffff660:  feefeffe feefeffe feefeffe feefeffe  
3ffff670:  feefeffe feefeffe feefeffe feefeffe  
3ffff680:  feefeffe feefeffe feefeffe feefeffe  
3ffff690:  feefeffe feefeffe feefeffe feefeffe  
3ffff6a0:  feefeffe feefeffe feefeffe feefeffe  
3ffff6b0:  feefeffe feefeffe feefeffe feefeffe  
3ffff6c0:  feefeffe feefeffe feefeffe feefeffe  
3ffff6d0:  feefeffe feefeffe feefeffe feefeffe  
3ffff6e0:  feefeffe feefeffe feefeffe feefeffe  
3ffff6f0:  feefeffe feefeffe feefeffe feefeffe  
3ffff700:  feefeffe feefeffe feefeffe feefeffe  
3ffff710:  feefeffe feefeffe feefeffe feefeffe  
3ffff720:  feefeffe feefeffe feefeffe feefeffe  
3ffff730:  feefeffe feefeffe feefeffe feefeffe  
3ffff740:  feefeffe feefeffe feefeffe feefeffe  
3ffff750:  feefeffe feefeffe feefeffe feefeffe  
3ffff760:  feefeffe feefeffe feefeffe feefeffe  
3ffff770:  feefeffe feefeffe feefeffe feefeffe  
3ffff780:  feefeffe feefeffe feefeffe feefeffe  
3ffff790:  feefeffe feefeffe feefeffe feefeffe  
3ffff7a0:  feefeffe feefeffe feefeffe feefeffe  
3ffff7b0:  feefeffe feefeffe feefeffe feefeffe  
3ffff7c0:  feefeffe feefeffe feefeffe feefeffe  
3ffff7d0:  feefeffe feefeffe feefeffe feefeffe  
3ffff7e0:  feefeffe feefeffe feefeffe feefeffe  
3ffff7f0:  feefeffe feefeffe feefeffe feefeffe  
3ffff800:  feefeffe feefeffe feefeffe feefeffe  
3ffff810:  feefeffe feefeffe feefeffe feefeffe  
3ffff820:  feefeffe feefeffe feefeffe feefeffe  
3ffff830:  feefeffe feefeffe feefeffe feefeffe  
3ffff840:  feefeffe feefeffe feefeffe feefeffe  
3ffff850:  feefeffe feefeffe feefeffe feefeffe  
3ffff860:  feefeffe feefeffe feefeffe feefeffe  
3ffff870:  feefeffe feefeffe feefeffe feefeffe  
3ffff880:  feefeffe feefeffe feefeffe feefeffe  
3ffff890:  feefeffe feefeffe feefeffe feefeffe  
3ffff8a0:  feefeffe feefeffe feefeffe feefeffe  
3ffff8b0:  feefeffe feefeffe feefeffe feefeffe  
3ffff8c0:  feefeffe feefeffe feefeffe feefeffe  
3ffff8d0:  feefeffe feefeffe feefeffe feefeffe  
3ffff8e0:  feefeffe feefeffe feefeffe feefeffe  
3ffff8f0:  feefeffe feefeffe feefeffe feefeffe  
3ffff900:  feefeffe feefeffe feefeffe feefeffe  
3ffff910:  feefeffe feefeffe feefeffe feefeffe  
3ffff920:  feefeffe feefeffe feefeffe feefeffe  
3ffff930:  feefeffe feefeffe feefeffe feefeffe  
3ffff940:  feefeffe feefeffe feefeffe feefeffe  
3ffff950:  feefeffe feefeffe feefeffe feefeffe  
3ffff960:  feefeffe feefeffe feefeffe feefeffe  
3ffff970:  feefeffe feefeffe feefeffe feefeffe  
3ffff980:  feefeffe feefeffe feefeffe feefeffe  
3ffff990:  feefeffe feefeffe feefeffe feefeffe  
3ffff9a0:  feefeffe feefeffe feefeffe feefeffe  
3ffff9b0:  feefeffe feefeffe feefeffe feefeffe  
3ffff9c0:  feefeffe feefeffe feefeffe feefeffe  
3ffff9d0:  feefeffe feefeffe feefeffe feefeffe  
3ffff9e0:  feefeffe feefeffe feefeffe feefeffe  
3ffff9f0:  feefeffe feefeffe feefeffe feefeffe  
3ffffa00:  feefeffe feefeffe feefeffe feefeffe  
3ffffa10:  feefeffe feefeffe feefeffe feefeffe  
3ffffa20:  feefeffe feefeffe feefeffe feefeffe  
3ffffa30:  feefeffe feefeffe feefeffe feefeffe  
3ffffa40:  feefeffe feefeffe feefeffe feefeffe  
3ffffa50:  feefeffe feefeffe feefeffe feefeffe  
3ffffa60:  feefeffe feefeffe feefeffe feefeffe  
3ffffa70:  feefeffe feefeffe feefeffe feefeffe  
3ffffa80:  feefeffe feefeffe feefeffe feefeffe  
3ffffa90:  feefeffe feefeffe feefeffe feefeffe  
3ffffaa0:  feefeffe feefeffe feefeffe feefeffe  
3ffffab0:  feefeffe feefeffe feefeffe feefeffe  
3ffffac0:  feefeffe feefeffe feefeffe feefeffe  
3ffffad0:  feefeffe feefeffe feefeffe feefeffe  
3ffffae0:  feefeffe feefeffe feefeffe feefeffe  
3ffffaf0:  feefeffe feefeffe feefeffe feefeffe  
3ffffb00:  feefeffe feefeffe feefeffe feefeffe  
3ffffb10:  feefeffe feefeffe feefeffe feefeffe  
3ffffb20:  feefeffe feefeffe feefeffe feefeffe  
3ffffb30:  feefeffe feefeffe feefeffe feefeffe  
3ffffb40:  feefeffe feefeffe feefeffe feefeffe  
3ffffb50:  feefeffe feefeffe feefeffe feefeffe  
3ffffb60:  feefeffe feefeffe feefeffe feefeffe  
3ffffb70:  feefeffe feefeffe feefeffe feefeffe  
3ffffb80:  feefeffe feefeffe feefeffe feefeffe  
3ffffb90:  feefeffe feefeffe feefeffe feefeffe  
3ffffba0:  feefeffe feefeffe feefeffe feefeffe  
3ffffbb0:  feefeffe feefeffe feefeffe feefeffe  
3ffffbc0:  feefeffe feefeffe feefeffe feefeffe  
3ffffbd0:  feefeffe feefeffe feefeffe feefeffe  
3ffffbe0:  feefeffe feefeffe feefeffe feefeffe  
3ffffbf0:  feefeffe feefeffe feefeffe feefeffe  
3ffffc00:  feefeffe feefeffe feefeffe feefeffe  
3ffffc10:  feefeffe feefeffe feefeffe feefeffe  
3ffffc20:  feefeffe feefeffe feefeffe feefeffe  
3ffffc30:  feefeffe feefeffe feefeffe feefeffe  
3ffffc40:  3ffffc84 3ffffc88 3ffee980 4020b8dc  
3ffffc50:  402367da 3ffee980 00000000 00000001  
3ffffc60:  40237abc feefeffe feefeffe 00000000  
3ffffc70:  3ffee980 00000000 3ffee980 4020b9c4  
3ffffc80:  00000000 00000000 00000000 feefeffe  
3ffffc90:  00000000 00000000 000005dc 00000000  
3ffffca0:  00000006 00000000 00000041 3ffffdc0  
3ffffcb0:  3ffffdc8 3ffffdc4 3ffef23c 4023379c  
3ffffcc0:  000005dc 00000000 00000010 3fffd85c  
3ffffcd0:  00000000 00000000 00000000 feefeffe  
3ffffce0:  3ffef23c feefeffe feefeffe 3ffffd50  
3ffffcf0:  3ffffd50 40234a8a 3ffeef94 3ffffdc0  
3ffffd00:  3ffffdc8 00000000 40231477 00000001  
3ffffd10:  ffffffff 00000000 3ffe9031 00000008  
3ffffd20:  402314c6 3ffef3c4 3ffef3c4 00000000  
3ffffd30:  00000000 00000000 00000020 4010015c  
3ffffd40:  000000c0 3ffef3c4 00000000 40101e98  
3ffffd50:  3ffe8ee0 40230587 3ffef3c4 3ffed180  
3ffffd60:  00000000 4021a5f3 3ffed180 3ffef3c4  
3ffffd70:  3ffe88bb 00000000 3ffef23c 402337f0  
3ffffd80:  3ffef45d 3ffeef94 00000007 3ffed8c4  
3ffffd90:  3ffe88bb 3ffe88bb 3ffef26f 4021c42f  
3ffffda0:  3ffed878 4021c000 4021e670 3ffed878  
3ffffdb0:  40105aed 0001379a 3ffed9a8 00000000  
3ffffdc0:  3ffee0b0 3ffed9a8 3ffe85d8 3ffee5b4  
3ffffdd0:  00000000 0000a51e 4021dfff 3ffed970  
3ffffde0:  3ffed9a8 4021e670 3ffed878 40201fcd  
3ffffdf0:  3ffed204 4021df74 3ffed180 00000012  
3ffffe00:  4021bff0 4021bfc4 3ffed204 00000012  
3ffffe10:  4021bf8f 3ffed180 00000012 402372de  


--------------- CUT HERE FOR EXCEPTION DECODER ---------------

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

wdt reset
load 0x4010f000, len 3424, room 16 
tail 0
chksum 0x2e
load 0x3fff20b8, len 40, room 8 
tail 0
chksum 0x2b
csum 0x2b
v00042740
~ld

Connecting
2

after setting up the SSID and password the code of post 1 runs OK on my D1 mini

..............
Connected, IP address: 192.168.1.242

what Tools>Board did you select? I used Generic ESP8266 module

did it compile and load OK and fail at run time?

3

Hi

For ESP8266 Reset causes and boot modes , some infos here from Espressif :

ttps://www.espressif.com/sites/default/files/documentation/esp8266_reset_causes_and_common_fatal_exception_causes_en.pdf

Install in IDE and use Stack Decoder tool , you will see what function causes this Reset.
https://github.com/me-no-dev/EspExceptionDecoder

4

I tried Wemos and Generic same result, yes compiles and loads ok, just wont connect to Wifi

The pdf seems to state the problem not how to solve it, as for the decoder tool I wouldnt be able to understand the output if my life depended on it :laughing:

5

There are at least 2 sets of example code on that page. Which are you using? This one?

#include <ESP8266WiFi.h>

void setup()
{
  Serial.begin(115200);
  Serial.println();

  WiFi.begin("network-name", "pass-to-network");

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

  Serial.print("Connected, IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {}
6

Yes that's the one.

7

the one that worked OK on my D1 mini in post 2

8

Do you see anything else appear on serial monitor before the exception message? Like any of the messages that the code prints?

Have you tried a different usb cable? Poor quality cables can suffer a voltage drop when the current increases like when the wemos attempts to connect to WiFi. Thicker cable can be a sign of better quality (but not a guarantee!).

9

Tried 3 different cables, there is quite a lot in the message I posted, scroll to the bottom.

10

can you still load and run blink?

11

Same results with WiFiScan ?

12

Yes just tried still works fine

Yes, just tested that, exactly same result.

Also tried with a powered USB hub, no change, maybe I got a dud.

13

Tried the exception decoder on WiFiScan, means nada to me :rofl:

Decoding stack results
0x40202496: loop_task(ETSEvent*) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\cores\esp8266\core_esp8266_main.cpp line 273
0x401000ab: app_entry_redefinable() at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\cores\esp8266\core_esp8266_main.cpp line 386
0x4010015c: ets_post(uint8, ETSSignal, ETSParam) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\cores\esp8266\core_esp8266_main.cpp line 238
0x40201634: ESP8266WiFiScanClass::_scanDone(void*, int) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\libraries\ESP8266WiFi\src\ESP8266WiFiScan.cpp line 305
0x40201634: ESP8266WiFiScanClass::_scanDone(void*, int) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\libraries\ESP8266WiFi\src\ESP8266WiFiScan.cpp line 305
0x40203470: uart_write(uart_t*, char const*, size_t) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\cores\esp8266\uart.cpp line 547
0x40201d94: Print::print(__FlashStringHelper const*) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\cores\esp8266\Print.cpp line 106
0x40201634: ESP8266WiFiScanClass::_scanDone(void*, int) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\libraries\ESP8266WiFi\src\ESP8266WiFiScan.cpp line 305
0x40233cc8: netif_add at glue-esp/lwip-esp.c line 532
0x40201634: ESP8266WiFiScanClass::_scanDone(void*, int) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\libraries\ESP8266WiFi\src\ESP8266WiFiScan.cpp line 305
0x40202504: __esp_suspend() at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\cores\esp8266/core_esp8266_features.h line 64
0x40201634: ESP8266WiFiScanClass::_scanDone(void*, int) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\libraries\ESP8266WiFi\src\ESP8266WiFiScan.cpp line 305
0x402017cd: ESP8266WiFiScanClass::scanNetworks(bool, bool, unsigned char, unsigned char*) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\libraries\ESP8266WiFi\src\ESP8266WiFiScan.cpp line 100
0x402010cc: loop() at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\libraries\ESP8266WiFi\examples\WiFiScan/WiFiScan.ino line 32
0x402015de: ESP8266WiFiSTAClass::disconnect(bool, bool) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\libraries\ESP8266WiFi\src\ESP8266WiFiSTA.cpp line 395
0x402015d8: ESP8266WiFiSTAClass::disconnect(bool, bool) at C:\Users\HenrysCat\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.1.1\libraries\ESP8266WiFi\src\ESP8266WiFiSTA.cpp line 394
14

strange - blink works but WiFi code crashes - can you upload a photo of the device?

15

This one, I have been wondering where to get a genuine Wemos board from, im in UK.

D1-Clone
D1-Clone640×923 289 KB

16

wdt reset
that means it's getting stuck somewhere, loop is not coming back around in the required time

17 
void loop() {}

try with a delay() in loop() , w any value

delay() for ESP8266 contains a yield() , usefull to avoid sme watchdog resets

18

Dont really know what that means to be honest, first day playing with these things, Raspberry pi guy normally :grin:

19

That would be an explanation.

1 Like
20

Interesting, Thank you

4B2K
4B2K598×566 117 KB