// MCU BASIC: https://www.basic4mcu.com
// DateTime : 2018-08-20 오후 7:55:58
// by Ok-Hyun Park
//
#include <Wire.h>
#include <Adafruit_INA219.h>
#include <LiquidCrystal_I2C.h>
Adafruit_INA219 sensor219; // Declare and instance of INA219
LiquidCrystal_I2C lcd(0x27,16,2);
//
void setup(void){
  Serial.begin(9600);
  sensor219.begin();
  lcd.init(); // initialize the lcd
  lcd.backlight();
}
//
void loop(void){
  float busVoltage=0,current=0,power=0;
  busVoltage=sensor219.getBusVoltage_V();
  current=sensor219.getCurrent_mA();
  power=busVoltage*(current/1000);
  Serial.print("Voltage: "); Serial.print(busVoltage); Serial.println(" V");
  Serial.print("Current: "); Serial.print(current);    Serial.println(" mA");
  Serial.print("Power: ");   Serial.print(power);      Serial.println(" W");
  Serial.println("");
  lcd.setCursor(0,0); lcd.print("Hello: ");
  lcd.setCursor(0,1); lcd.print("VDC: "); lcd.print(busVoltage,1); lcd.print("  ");  
  delay(2000);
}
 
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