Re: Issues with onboard blue led on esp8266-01
Posted: Mon Jul 02, 2018 1:21 amWell if you are using ESP-01 the LED is connected to TXD so it's obvious, that you can not control it after Serial.begin() 
Code: Select all
#include <Arduino.h>
const short int _led = 1; //GPIO1
const short int _led2 = 16;
void setup() {
// put your setup code here, to run once:
pinMode(_led,OUTPUT);
pinMode(_led2,OUTPUT);
// Serial.begin(9600);
}
void loop() {
// put your main code here, to run repeatedly:
while(true)
{
digitalWrite(_led,LOW);
delay(1000);
digitalWrite(_led,HIGH);
delay(1000);
}
}