Bonjour, je suis nouveau sur le forum et je suis débutant sur Arduino.
J'ai un projet de fin d'année en 1ère STI2D, et je dois mesurer le courant et la tension d'un panneau solaire avec un capteur INA219, puis retransmettre les informations sur un écran LCD et tout cela relié avec une carte Arduino UNO et une platine d'essais. J'ai déjà fait mon code, mais je ne sais pas si il est bon. Pouvez vous me dire quels sont les erreurs et me les indiquer où elles le sont ?
Merci d'avance
Voici le code :
#include <Wire.h>
#include <Adafruit_INA219.h>
Adafruit_INA219 ina219;
void setup(void)
{
Serial.begin(115200);
while (!Serial) {
// will pause Zero, Leonardo, etc until serial console opens
delay(1);
}
uint32_t currentFrequency;
Serial.println("Hello!");
// Initialize the INA219.
// By default the initialization will use the largest range (32V, 2A). However
// you can call a setCalibration function to change this range (see comments).
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 (higher precision on volts and amps):
//ina219.setCalibration_16V_400mA();
Serial.println("Measuring voltage and current 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(2000);
}
#include <Wire.h>
#include <Adafruit_INA219.h>
#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Fonts/FreeSerifItalic12pt7b.h>
Adafruit_INA219 ina219;
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET 4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
float current_mA = 0;
float loadvoltage = 0;
float power_mW = 0;
void setup(void)
{
Serial.begin(115200);
while (!Serial) {
// will pause Zero, Leonardo, etc until serial console opens
delay(1);
}
uint32_t currentFrequency;
if (! ina219.begin()) {
Serial.println("Failed to find INA219 chip");
while (1) {
delay(10);
}
}
if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
Serial.println(F("SSD1306 allocation failed"));
for (;;); // Don't proceed, loop forever
}
// Clear the buffer
display.clearDisplay();
Serial.println("Measuring voltage and current with INA219 ...");
}
void loop(void)
{
float shuntvoltage = 0;
float busvoltage = 0;
current_mA = 0;
loadvoltage = 0;
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("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("");
display.clearDisplay();
voltCurrent();
delay(2000);
display.clearDisplay();
powerr();
delay(2000);
}
void voltCurrent() {
display.setFont();
display.setTextSize(2); // Draw 2X-scale text
display.setTextColor(WHITE);
display.setCursor(0, 0); // Start at top-left corner
display.print(loadvoltage);
display.print("V");
display.setCursor(0, 18);
display.print(current_mA);
display.print("mA");
display.display();
}
void powerr() {
display.setFont(&FreeSerifItalic12pt7b);
display.setTextSize(1); // Draw 2X-scale text
display.setTextColor(WHITE);
display.setCursor(0, 20); // Start at top-left corner
display.print(power_mW);
display.print("mW");
display.display();
}
