Voltmètre / Ampèremètre INA219/GY-219 []

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Voltmètre / Ampèremètre INA219/GY-219

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documentation:microcontroleurs:arduino:modules:ina219_va_meter:index [2025/05/01 14:02] – [I2C] f1slsdocumentation:microcontroleurs:arduino:modules:ina219_va_meter:index [2025/05/04 14:42] (Version actuelle) – f1sls
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-====== Voltmètre / Ampèremètre INA219 ======+====== Voltmètre / Ampèremètre INA219/GY-219 ======
 {{:documentation:microcontroleurs:arduino:modules:ina219_va_meter:ina219_01.jpg?300&nolink|}} {{:documentation:microcontroleurs:arduino:modules:ina219_va_meter:ina219_01.jpg?300&nolink|}}
 \\ \\
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 ===== I2C ===== ===== I2C =====
-I2C Address 
- 
 The INA219 uses the I2C protocol to communicate with microcontrollers, and each device on the I2C bus must have a unique address. The default I2C address for the INA219 is 0x40 (or 1000000 in binary). The INA219 uses the I2C protocol to communicate with microcontrollers, and each device on the I2C bus must have a unique address. The default I2C address for the INA219 is 0x40 (or 1000000 in binary).
  
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 ==== Calibration Register (Address = 05h) ==== ==== Calibration Register (Address = 05h) ====
 This register is used to set the calibration value for the current and power calculations. It can be read or written to set the correct calibration value. This register is used to set the calibration value for the current and power calculations. It can be read or written to set the correct calibration value.
-===== WIRING ===== 
  
 ===== PINOUT ===== ===== PINOUT =====
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   * **Vin+** this pin connects to the positive terminal of the voltage supply that you want to measure.   * **Vin+** this pin connects to the positive terminal of the voltage supply that you want to measure.
  
 +===== WIRING =====
 +{{:documentation:microcontroleurs:arduino:modules:ina219_va_meter:interfacing-ina219-dc-current-sensor-module-with-arduino.jpg?600|}}
 +{{:documentation:microcontroleurs:arduino:modules:ina219_va_meter:ina219-arduino-nano_steckplatine.png?600|}}
 ===== Librairie(s) ===== ===== Librairie(s) =====
   * [[https://github.com/adafruit/Adafruit_INA219|Adafruit INA219]]   * [[https://github.com/adafruit/Adafruit_INA219|Adafruit INA219]]
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 ==== ARDUINO CODE ==== ==== ARDUINO CODE ====
 <code cpp> <code cpp>
 +#include <Wire.h>
 +#include <Adafruit_INA219.h>
 + 
 +Adafruit_INA219 ina219;
 + 
 +void setup(void)
 +{
 +  Serial.begin(9600);
 +  while (!Serial) 
 +  {
 +    delay(1);
 +  }
 + 
 +  // Initialize the INA219.
 +  if (! ina219.begin())
 +  {
 +    Serial.println("Failed to find INA219 chip");
 +    while (1) 
 +    {
 +      delay(10);
 +    }
 +  }
 +  // To use a slightly lower 32V, 1A range (higher precision on amps):
 +  //ina219.setCalibration_32V_1A();
 +  // Or to use a lower 16V, 400mA range, call:
 +  //ina219.setCalibration_16V_400mA();
 + 
 +  Serial.println("Measuring voltage, current, and power with INA219 ...");
 +}
 + 
 +void loop(void)
 +{
 +  float shuntvoltage = 0;
 +  float busvoltage = 0;
 +  float current_mA = 0;
 +  float loadvoltage = 0;
 +  float power_mW = 0;
 + 
 +  shuntvoltage = ina219.getShuntVoltage_mV();
 +  busvoltage = ina219.getBusVoltage_V();
 +  current_mA = ina219.getCurrent_mA();
 +  power_mW = ina219.getPower_mW();
 +  loadvoltage = busvoltage + (shuntvoltage / 1000);
 + 
 +  Serial.print("Bus Voltage:   "); Serial.print(busvoltage); Serial.println(" V");
 +  Serial.print("Shunt Voltage: "); Serial.print(shuntvoltage); Serial.println(" mV");
 +  Serial.print("Load Voltage:  "); Serial.print(loadvoltage); Serial.println(" V");
 +  Serial.print("Current:       "); Serial.print(current_mA); Serial.println(" mA");
 +  Serial.print("Power:         "); Serial.print(power_mW); Serial.println(" mW");
 +  Serial.println("");
 + 
 +  delay(1000);
 +}
 +</code>
 +
 +<code cpp>
 +#include "Wire.h"
 +#include "Adafruit_INA219.h"
 +
 +Adafruit_INA219 ina219;
 +
 +void setup() {
 +  // Open serial communications and wait for port to open:
 +  Serial.begin(9600);
 +  while (!Serial) {
 +    ; // wait for serial port to connect. Needed for native USB port only
 +  }
 +
 +  if (! ina219.begin()) {
 +    Serial.println("Failed to find INA219 chip");
 +    while (1) { delay(10); }
 +  }
 +
 +  Serial.print("BV"); Serial.print("\t"); // Bus Voltage
 +  Serial.print("SV"); Serial.print("\t"); // Shunt Voltage
 +  Serial.print("LV"); Serial.print("\t"); // Load Voltage
 +  Serial.print("C"); Serial.print("\t");  // Current
 +  Serial.println("P");  // Power
 +}
 +
 +void loop() {
 +  float shuntvoltage = 0;
 +  float busvoltage = 0;
 +  float current_mA = 0;
 +  float loadvoltage = 0;
 +  float power_mW = 0;
 +
 +  shuntvoltage = ina219.getShuntVoltage_mV();
 +  busvoltage = ina219.getBusVoltage_V();
 +  current_mA = ina219.getCurrent_mA();
 +  power_mW = ina219.getPower_mW();
 +  loadvoltage = busvoltage + (shuntvoltage / 1000);
 +
 +  Serial.print(busvoltage); Serial.print("\t"); 
 +  Serial.print(shuntvoltage); Serial.print("\t");
 +  Serial.print(loadvoltage); Serial.print("\t");
 +  Serial.print(current_mA); Serial.print("\t");
 +  Serial.println(power_mW);
 +
 +  delay(1000);
 +}
 </code> </code>
documentation/microcontroleurs/arduino/modules/ina219_va_meter/index.1746100943.txt.gz · Dernière modification : de f1sls

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