Sparkfun Thing ESP8266上闪烁的LED

Question

所以我是一个全新的开发板编程新手，我需要一双更有经验的眼睛来检查我的硬件设置。我已经在Arduino IDE内部的工具中添加了"Sparkfun ESP8266 Thing Dev“，我相信所写的代码也是正确的。我应该对我的线缆和电路板设置进行哪些更改才能使简单的闪烁程序运行？

代码：

//pin 5
  //int ESP8266_LED = 13;

  //#define led 5

  int led = 5;
void setup() {
  // put your setup code here, to run once:


  pinMode(led, OUTPUT);

  //ESP8266_LED
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(led, HIGH); // LED off
  delay(500);
  digitalWrite(led, LOW); // LED on
  delay(500);


}

更新后的板子：

This is where I'm at now after a few helpful suggestions...