Medidor de qualidade da água by Henry Thomas

Base Principal

henrythomas0512 — 2023-08-03 19:34:07 UTC

App - Bluetooth

henrythomas0512 — 2023-08-03 19:35:03 UTC

Nome do App: Ardutooth
https://drive.google.com/file/d/1BVRFt7rIyNK-loJ0W4JD0RdEtYOTk8xW/view

Projeto Fritzing - Montagem

henrythomas0512 — 2023-08-03 19:39:29 UTC

Projeto - Fritzing

henrythomas0512 — 2023-08-03 19:40:22 UTC

Code - Print Temp Sensor on LCD

henrythomas0512 — 2023-08-03 19:44:38 UTC

https://arduinopoint.com/lm35-arduino-project/

Code - Print PH Sensor on LCD

henrythomas0512 — 2023-08-03 19:45:45 UTC

https://circuitdigest.com/microcontroller-projects/arduino-ph-meter

Code - Print TDS Sensor on LCD

henrythomas0512 — 2023-08-03 19:47:13 UTC

https://www.hackster.io/GAURAVK5/dfrobot-tds-meter-sensor-with-arduino-and-lcd-measure-92853d

Código printar lm35

henrythomas0512 — 2023-08-03 20:10:45 UTC

#include
LiquidCrystal lcd(12, 11, 5, 4, 3, 2); // (RS, E, D4, D5, D6, D7)

void setup() {
lcd.begin(16, 2);
Serial.begin(9600);
}

void loop() {
int adcVal = analogRead(A0); // read the ADC value from the LM35
float milliVolt = adcVal * (5000.0 / 1024.0);
float tempC = milliVolt / 10;

float tempF = (tempC * 9 / 5) + 32;

Serial.print("Temperature (°C): ");
Serial.println(tempC);
Serial.print("Temperature (°F): ");
Serial.println(tempF);

lcd.setCursor(0, 0); // set the cursor position to the first line, first column
lcd.print("Temperature: ");
lcd.print(tempC);
lcd.print("°C");

lcd.setCursor(0, 1);
lcd.print("Temp(F): ");
lcd.print(tempF);
lcd.print("°F");

delay(500);
}

2023-08-04 18:04:49 UTC

https://www.multcomercial.com.br/chave-gangorra-com-3-terminais-6a-250v-verde-com-neon-kcd1-102n.html

Cronograma

2023-08-09 18:07:02 UTC

2023-08-10 18:15:43 UTC

TDS SENSOR

2023-08-11 19:09:48 UTC

#define TdsSensorPin A0
#define VREF 5.0 // analog reference voltage(Volt) of the ADC
#define SCOUNT 30 // sum of sample point

int analogBuffer[SCOUNT]; // store the analog value in the array, read from ADC
int analogBufferTemp[SCOUNT];
int analogBufferIndex = 0;
int copyIndex = 0;

float averageVoltage = 0;
float tdsValue = 0;
float temperature = 24; // current temperature for compensation

// median filtering algorithm
int getMedianNum(int bArray[], int iFilterLen){
int bTab[iFilterLen];
for (byte i = 0; i bTab[i] = bArray[i];
int i, j, bTemp;
for (j = 0; j < iFilterLen - 1; j++) {
for (i = 0; i < iFilterLen - j - 1; i++) {
if (bTab[i] > bTab[i + 1]) {
bTemp = bTab[i];
bTab[i] = bTab[i + 1];
bTab[i + 1] = bTemp;
}
}
}
if ((iFilterLen & 1) > 0){
bTemp = bTab[(iFilterLen - 1) / 2];
}
else {
bTemp = (bTab[iFilterLen / 2] + bTab[iFilterLen / 2 - 1]) / 2;
}
return bTemp;
}

void setup(){
Serial.begin(115200);
pinMode(TdsSensorPin,INPUT);
}

void loop(){
static unsigned long analogSampleTimepoint = millis();
if(millis()-analogSampleTimepoint > 40U){ //every 40 milliseconds,read the analog value from the ADC
analogSampleTimepoint = millis();
analogBuffer[analogBufferIndex] = analogRead(TdsSensorPin); //read the analog value and store into the buffer
analogBufferIndex++;
if(analogBufferIndex == SCOUNT){
analogBufferIndex = 0;
}
}

static unsigned long printTimepoint = millis();
if(millis()-printTimepoint > 800U){
printTimepoint = millis();
for(copyIndex=0; copyIndex analogBufferTemp[copyIndex] = analogBuffer[copyIndex];

// read the analog value more stable by the median filtering algorithm, and convert to voltage value
averageVoltage = getMedianNum(analogBufferTemp,SCOUNT) * (float)VREF / 1024.0;

//temperature compensation formula: fFinalResult(25^C) = fFinalResult(current)/(1.0+0.02*(fTP-25.0));
float compensationCoefficient = 1.0+0.02*(temperature-25.0);
//temperature compensation
float compensationVoltage=averageVoltage/compensationCoefficient;

//convert voltage value to tds value
tdsValue=(133.42*compensationVoltage*compensationVoltage*compensationVoltage - 255.86*compensationVoltage*compensationVoltage + 857.39*compensationVoltage)*0.5;

//Serial.print("voltage:");
//Serial.print(averageVoltage,2);
//Serial.print("V ");
Serial.print("TDS Value:");
Serial.print(tdsValue,0);
Serial.println("ppm");
}
}
}

2023-08-18 20:21:39 UTC

https://hackaday.io/project/7008-hacking-the-way-to-growing-food/log/24646-three-dollar-ec-ppm-meter-arduino

2023-08-18 20:21:53 UTC

2023-08-18 20:25:34 UTC

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2023-08-18 20:27:35 UTC

2023-08-18 20:27:51 UTC

https://www.reddit.com/r/arduino/comments/zhhk92/how_can_i_measure_salinity_of_water/

https://www.reddit.com/r/arduino/comments/5uxpgg/measuring_salinity_by_the_resistance_of_water/

2023-08-25 12:17:23 UTC

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2023-09-14 19:58:59 UTC

2023-09-14 20:06:28 UTC

2023-10-31 17:59:04 UTC