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Connection stop working(esp8266 )

hardware
arduino
esp8266

#1

Guys, i need help! I have a wemos micro(esp8266 + cp 2102) and yesterday i’ve uploaded my sketch:

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
//#define BLYNK_PRINT Serial


char auth[] = ""; 

char ssid[] = "";
char pass[] = "";

int jsx, jsy, jdx, jdy, b1, b2, b3, b4;

void setup()
{
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
}

BLYNK_WRITE(V0)
{
  b1 = param.asInt();
  SerialWrite();
}
BLYNK_WRITE(V3)
{
  b2 = param.asInt();
  SerialWrite();
}
BLYNK_WRITE(V4)
{
  b3 = param.asInt();
  SerialWrite();
}
BLYNK_WRITE(V5)
{
  b4 = param.asInt();
  SerialWrite();
}

BLYNK_WRITE(V1)
{
  jsx = param[0].asInt();
  jsy = param[1].asInt();
  SerialWrite();
}
BLYNK_WRITE(V2)
{
  jdx = param[0].asInt();
  jdy = param[1].asInt();
  SerialWrite();
}

void loop()
{
  Blynk.run();
}
void SerialWrite()
{
  Serial.print(jsx);
  Serial.print(" ");
  Serial.print(jsy);
  Serial.print(" ");
  Serial.print(jdx);
  Serial.print(" ");
  Serial.print(jdy);
  Serial.print(" ");
  Serial.print(b1);
  Serial.print(" ");
  Serial.print(b2);
  Serial.print(" ");
  Serial.print(b3);
  Serial.print(" ");
  Serial.print(b4);
  Serial.print("\n");
}

It was working very well until today when esp just doesn’t showed connected on the blynk app! So, i tried to reupload the sketch but i was getting this:
“warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed”

I thought my esp died but suddenly esp start working again.(I forget it plug in and after 2 hour i find it connected). But now, when i restart it, it stop working again! :disappointed_relieved:

My hardware is: Wemos micro(esp8266), latest blynk library, latest arduino version.

Any idea? Is chip dead or is something wrong with the board?
P.S. I hook up the esp to an amperemeter and it draws about 100 - 80 mA.


#2

Google these errors… basically something is causing connection issues between the IDE and the ESP… something else using the same USP port… bad BAUD… glitchy MCU (try unplug/power off and back on)… bad USB cable… Wrong IDE settings… etc.