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Voltage.ino
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Voltage.ino
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#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
#include <INA226_WE.h>
#define I2C_ADDRESS 0x40
INA226_WE ina226(I2C_ADDRESS);
// INA226_WE ina226 = INA226_WE(); // Alternative: sets default address 0x40
void setup() {
Serial.begin(9600);
lcd.init();
// turn on LCD backlight
lcd.backlight();
Wire.begin();
// default parameters are set - for change check the other examples
ina226.init();
Serial.println("INA226 Current Sensor Example Sketch - PowerDown");
Serial.println("Continuous Sampling starts");
Serial.println();
}
void loop() {
for(int i=0; i<5; i++){
continuousSampling();
delay(3000);
}
Serial.println("Power down for 7s");
ina226.powerDown();
for(int i=0; i<7; i++){
Serial.print(".");
delay(1000);
}
Serial.println("Power up!");
Serial.println("");
ina226.powerUp();
}
void continuousSampling(){
float shuntVoltage_mV = 0.0;
float loadVoltage_V = 0.0;
float busVoltage_V = 0.0;
float current_mA = 0.0;
float power_mW = 0.0;
float res=0.0;
float pes=0.0;
ina226.readAndClearFlags();
shuntVoltage_mV = ina226.getShuntVoltage_mV();
busVoltage_V = ina226.getBusVoltage_V();
current_mA = ina226.getCurrent_mA();
power_mW = ina226.getBusPower();
loadVoltage_V = busVoltage_V + (shuntVoltage_mV/1000);
Serial.print("Shunt Voltage [mV]: "); Serial.println(shuntVoltage_mV);
Serial.print("Bus Voltage [V]: "); Serial.println(busVoltage_V);
lcd.setCursor ( 0 , 0);lcd.print("Voltage:");lcd.print(busVoltage_V);
Serial.print("Load Voltage [V]: "); Serial.println(loadVoltage_V);
Serial.print("Current[mA]: "); Serial.println(current_mA);
res= busVoltage_V /0.07;
pes=res*10;
lcd.setCursor ( 0 , 1);lcd.print("Percentage:");lcd.print(pes);lcd.print("%");
Serial.print("Bus Power [mW]: "); Serial.println(power_mW);
if(!ina226.overflow){
Serial.println("Values OK - no overflow");
}
else{
Serial.println("Overflow! Choose higher current range");
}
Serial.println();
}