bauerjj

/*
 * https://howtomechatronics.com/tutorials/arduino/ultrasonic-sensor-hc-sr04/
 * https://codebender.cc/sketch:356078#HC-SR04%20Ultrasonic%20Sensor%20Example.ino
 * https://einstronic.com/store/controller/esp8266/wemos/wemos-d1-mini-esp8266-wifi-development-board/
 * 
 * Uses: https://github.com/gamo256/dweet-esp
 */


#include <ESP8266WiFi.h>

bauerjj

/**
 * Simple routine that performs the following:
 *  1. Configures the software UART on pins 2 and 4 (RX,TX)
 *  2. Increments a 32-bit variable every 500ms
 *  4. If it receives a '1' character from bluetooth, it toggles an LED
 *     
 *  @author Justin Bauer - mcuhq.com
 *  @date 4.24.2016
 */

bauerjj

/**
 * Simple routine that performs the following:
 *  1. Blink the on-board status LED every 500ms
 *  2. Configures the software UART on pins 2 and 4 (RX,TX)
 *  3. Continuously sends the string "hello" to the bluetooth module every 500ms
 *  4. If it receives a character from bluetooth, it echos it back
 *     
 *  @author mcuhq.com
 */