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WaterSensorHiroky.ino
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WaterSensorHiroky.ino
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#include <Wire.h>
#include <Adafruit_Sensor.h>
#include <Adafruit_ADXL345_U.h>
#include <WiFiNINA.h>
#include <ArduinoHttpClient.h>
char ssid[] = "Detkin IOT North";
char pass[] = "n0rthC0untry";
// add your server details here
char serverAddress[] = "10.102.245.23"; // your server's url or IP address
int serverPort = 3000; // your server's listening port
WiFiClient wifi;
HttpClient client = HttpClient(wifi, serverAddress, serverPort);
#define FLOW_SENSOR_PIN A1 // The pin the flow sensor is connected to
#define SIP_THRESHOLD 10 // Threshold to detect a sip
#define PULSE_VOLUME 2.25 // Volume per pulse for the flow sensor (mL), placeholder value
#define FLOW_CALC_INTERVAL 1000 // Calculation interval for the flow (ms)
#define ML_PER_CUP 237.0 // Milliliters in a cup
Adafruit_ADXL345_Unified accel = Adafruit_ADXL345_Unified();
unsigned long lastFlowCalc = 0;
unsigned long lastAccelMeasure = 0;
volatile int pulseCount = 0; // Counts flow sensor pulses
float waterVolume = 0.0; // Total amount of water passed through sensor in mL
unsigned int sips = 0; // Counts number of sips
void flowPulseCounter()
{
pulseCount++; // Increment pulse counter
}
void setup() {
Serial.begin(9600);
if (!accel.begin()) {
Serial.println("Failed to start accelerometer. Check wiring, then reset.");
while (1);
}
Serial.println("Accelerometer initialized!");
// Setting the range of accelerometer
accel.setRange(ADXL345_RANGE_16_G);
// Set up flow sensor
pinMode(FLOW_SENSOR_PIN, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(FLOW_SENSOR_PIN), flowPulseCounter, RISING);
// Add this WiFi connection code to 'setup()' function
Serial.print("Connecting to WiFi... ");
int status = WL_IDLE_STATUS;
while (status != WL_CONNECTED) {
status = WiFi.begin(ssid, pass);
delay(10000);
}
Serial.println("WiFi Connected!");
}
void loop() {
sensors_event_t event;
accel.getEvent(&event);
if (millis() - lastFlowCalc >= FLOW_CALC_INTERVAL) {
detachInterrupt(digitalPinToInterrupt(FLOW_SENSOR_PIN));
waterVolume += pulseCount * PULSE_VOLUME;
lastFlowCalc = millis();
// Convert volume to cups
float waterVolumeCups = waterVolume;
Serial.print("Water Volume: ");
Serial.print(waterVolumeCups);
Serial.println(" cups");
String postData = "Water Volume: " + String(waterVolumeCups) + " mL";
client.beginRequest();
client.post("/api/data");
client.sendHeader("Content-Type", "application/x-www-form-urlencoded");
client.sendHeader("Content-Length", postData.length());
client.beginBody();
client.print(postData);
client.endRequest(); // no need to assign the return of this to any variable
// get the status response of the HTTP request
int statusCode = client.responseStatusCode();
if (statusCode >= 0) {
Serial.print("POST request was successful, status code: ");
Serial.println(statusCode);
} else {
Serial.print("Failed to send POST request: ");
Serial.println(statusCode);
}
pulseCount = 0;
attachInterrupt(digitalPinToInterrupt(FLOW_SENSOR_PIN), flowPulseCounter, RISING);
}
if (fabs(event.acceleration.y) > SIP_THRESHOLD) {
if (millis() - lastAccelMeasure >= FLOW_CALC_INTERVAL) {
lastAccelMeasure = millis();
sips++;
Serial.print("Sips: ");
Serial.println(sips);
}
}
}