ESP8266 Community Forum

- Thu Jul 02, 2015 6:38 am #22254 Hello Everyone
I'm new to ESP01 developing and i'm facing a bit of a problem here .
I'm connecting my ESP to the PC through a USB/TTL 3v3 adapter without Reset and DTR but i'm sure i made the correct connections because i managed to get answer from the ESP and to upload my own code using the Arduino IDE.
My Problem is the following :
This Code Works

Code: Select allvoid setup() {
  // put your setup code here, to run once:
Serial.begin(115200);
}
void loop() {
Serial.write("hello");
delay(5000);
}


But this one shows nothing on the Serial Monitor :

Code: Select allvoid setup() {
  // put your setup code here, to run once:
Serial.begin(115200);
Serial.write("hello");
}
void loop() {
}


Also i tried the HelloServer Exemple , none of the Serial.write Works but i know that the code is working because i managed to find the webpage and see the message displayed.
Help me please and thank you

- Thu Jul 02, 2015 1:33 pm #22282 Second code is working too. (on my ESP)

Perhaps you are starting the serial monitor too late?

BTW:
Why is this a "serial.read" problem?

my ESP8266: ESP-01 V2 / ESP-12E (NodeMCU)
ESP8266 Arduino add-on
Arduino IDE 1.6.5

- Fri Jul 03, 2015 2:39 am #22324 The Thing is that sometimes i flash a code(mostly when flashing something with Wifi and Serial in it ) and leave bootloading mode(GPIO0 from GND to floating ) , the esp stops being detected by my pc so i can't even check the serial monitor.

for the name thing, i also have a serial read problem. Every time i try Serial.read() , the arduino IDE stops working and i have to kill the program.

Code: Select allvoid setup() {
  // put your setup code here, to run once:
Serial.begin(115200);
}
void loop() {
   if(Serial.available())
   {
    Serial.write(Serial.read());
delay(500);
   }
}
 

- Fri Jul 03, 2015 3:05 am #22329 Problem Solved.
Power Source Problems , stoped using the 3v3 from the usb and got an external source
Thank you for your time