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pm:prj2025:vstoica:radu.silvestru [2025/05/26 17:52] radu.silvestru [Descriere generala] |
pm:prj2025:vstoica:radu.silvestru [2025/05/26 20:29] (current) radu.silvestru [Software] |
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| + | ===== Software ===== | ||
| + | ^ Librarie ^ Scop ^ | ||
| + | | Wire.h | Comunicare I2C (pentru LCD)| | ||
| + | | LiquidCrystal_I2C.h| Afișare pe LCD 1602 cu interfață I2C| | ||
| + | |OneWire.h |Protocol OneWire pentru senzorul de temperatură DS18B20| | ||
| + | |DallasTemperature.h| Citirea temperaturii de la senzorul DS18B20| | ||
| + | <code cpp> | ||
| + | #include <Wire.h> | ||
| + | #include <LiquidCrystal_I2C.h> | ||
| + | #include <OneWire.h> | ||
| + | #include <DallasTemperature.h> | ||
| + | LiquidCrystal_I2C lcd(0x27, 16, 2); | ||
| + | #define EC_IN1 7 | ||
| + | #define EC_IN2 6 | ||
| + | #define EC_ANALOG A0 | ||
| + | #define EC_REF_RESISTOR 1000.0 | ||
| + | |||
| + | #define TURBIDITY_PIN A1 | ||
| + | |||
| + | #define TEMP_DATA_PIN 2 | ||
| + | OneWire oneWire(TEMP_DATA_PIN); | ||
| + | DallasTemperature tempSensor(&oneWire); | ||
| + | |||
| + | const float EC_VOLT_LOW = 0.20; | ||
| + | const float EC_VOLT_HIGH = 1.12; | ||
| + | const float EC_LOW_UScm = 0.0; | ||
| + | const float EC_HIGH_UScm = 1413.0; | ||
| + | |||
| + | const float EC_SLOPE = (EC_HIGH_UScm - EC_LOW_UScm) / (EC_VOLT_HIGH - EC_VOLT_LOW); | ||
| + | const float EC_OFFSET = EC_VOLT_LOW; | ||
| + | |||
| + | void setup() { | ||
| + | pinMode(EC_IN1, OUTPUT); | ||
| + | pinMode(EC_IN2, OUTPUT); | ||
| + | Serial.begin(9600); | ||
| + | tempSensor.begin(); | ||
| + | Wire.begin(); | ||
| + | lcd.begin(16, 2); | ||
| + | lcd.backlight(); | ||
| + | lcd.setCursor(0, 0); | ||
| + | lcd.print("Water Monitor"); | ||
| + | delay(2000); | ||
| + | lcd.clear(); | ||
| + | } | ||
| + | |||
| + | void loop() { | ||
| + | digitalWrite(EC_IN1, HIGH); | ||
| + | digitalWrite(EC_IN2, LOW); | ||
| + | delayMicroseconds(5000); | ||
| + | int adc1 = analogRead(EC_ANALOG); | ||
| + | |||
| + | digitalWrite(EC_IN1, LOW); | ||
| + | digitalWrite(EC_IN2, HIGH); | ||
| + | delayMicroseconds(5000); | ||
| + | int adc2 = analogRead(EC_ANALOG); | ||
| + | |||
| + | float voltage_avg = ((adc1 + adc2) / 2.0) * (5.0 / 1023.0); | ||
| + | float current_mA = voltage_avg / EC_REF_RESISTOR * 1000.0; | ||
| + | float ec_uScm = EC_SLOPE * (voltage_avg - EC_OFFSET); | ||
| + | if (ec_uScm < 0) ec_uScm = 0; | ||
| + | |||
| + | int turb_raw = analogRead(TURBIDITY_PIN); | ||
| + | float turb_voltage = turb_raw * (5.0 / 1023.0); | ||
| + | |||
| + | tempSensor.requestTemperatures(); | ||
| + | float tempC = tempSensor.getTempCByIndex(0); | ||
| + | |||
| + | Serial.println("==== WATER QUALITY ===="); | ||
| + | Serial.print("Temperature: "); Serial.print(tempC); Serial.println(" C"); | ||
| + | Serial.print("EC: "); Serial.print(ec_uScm); Serial.println(" uS/cm"); | ||
| + | Serial.print("Turbidity Voltage: "); Serial.print(turb_voltage, 2); Serial.println(" V"); | ||
| + | Serial.println("========================"); | ||
| + | |||
| + | lcd.setCursor(0, 0); | ||
| + | lcd.print("T:"); lcd.print(tempC, 1); lcd.print("C "); | ||
| + | lcd.print("EC:"); lcd.print((int)ec_uScm); | ||
| + | |||
| + | lcd.setCursor(0, 1); | ||
| + | lcd.print("Turb:"); lcd.print(turb_voltage, 1); lcd.print("V"); | ||
| + | |||
| + | delay(1500); | ||
| + | } | ||
| + | </code> | ||
