Arduino/iot_esp8266_cloud_test/iot_esp8266_cloud_test.ino

/*
 *  esp8266 CLOUD version chip
 *  (with light sensor and LED light at the two corners)
 *  
 *  
 *  gpio2 - small power/status led
 *  a0 - analog read
 *  
 *  
 *  RGB LED pin - not 4, 5, 0
 *  
 *  pin 15 is RED
 */

#include <ESP8266WiFi.h>

const char* ssid     = "hazard18";
const char* password = "pu1f0xylu1";

const char* host = "wifitest.adafruit.com";

void setup() {
  pinMode(15, OUTPUT);
  pinMode(2, OUTPUT);  
  pinMode(A0, INPUT);
  Serial.begin(115200);
  delay(100);
  Serial.print("Starting... ");


}

int a0;
void loop() {

/*  Serial.println("set 4 high");
  digitalWrite(4, HIGH);
  delay(1500);  
  Serial.println("set 4 low");
  digitalWrite(4, LOW);
  delay(1000);  
*/
  
  Serial.println("set 5 high");
  digitalWrite(15, HIGH);
  delay(500);
  Serial.println("set 5 low");

  digitalWrite(15, LOW);
  delay(500);
  
  a0= (unsigned int) analogRead(A0);
  Serial.println("a0 val: " + String(a0));

  

}