Cirkit Designer LogoCirkit DesignerYour all-in-one circuit design IDE Launch Cirkit Designer App

Smart Water Bottle with Arduino UNO and ESP8266 for Real-Time Monitoring

View and Edit Project In Cirkit DesignerImage of Smart Water Bottle with Arduino UNO and ESP8266 for Real-Time Monitoring

Smart Water Bottle Circuit Documentation

Summary

This document provides a detailed overview of the Smart Water Bottle circuit. The circuit monitors water quality, temperature, water level, and lid status using various sensors. The data is displayed on an OLED screen and can be accessed wirelessly via WiFi. The circuit includes an Arduino UNO, an ESP8266 module, and several sensors and components.

Component List

  1. MKE-S15 DS18B20 Waterproof Temperature Sensor

    • Pins: SIG, 5V, GND
    • Description: Measures the temperature of the water.

  2. Resistor (4700 Ohms)

    • Pins: pin1, pin2
    • Description: Used for current limiting or voltage division.

  3. TDS Sensor

    • Pins: AI, GND, 5V
    • Description: Measures the Total Dissolved Solids (TDS) in the water.

  4. Resistor (1800 Ohms)

    • Pins: pin1, pin2
    • Description: Used for current limiting or voltage division.

  5. Resistor (3300 Ohms)

    • Pins: pin1, pin2
    • Description: Used for current limiting or voltage division.

  6. 18650 Li-Ion Battery

    • Pins: Positive, Negative
    • Description: Provides power to the circuit.

  7. TP4056

    • Pins: OUT-, B-, B+, OUT+, IN-, IN+
    • Description: Battery charging module for the 18650 Li-Ion battery.

  8. Reed Switch

    • Pins: pin 1, pin 2
    • Description: Detects the status of the water bottle lid.

  9. Arduino UNO

    • Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0
    • Description: Main microcontroller for the circuit.

  10. JSN-SR04T Ultrasonic Sensor

    • Pins: 5V, Trig, Echo, GND
    • Description: Measures the water level in the bottle.

  11. ESP8266

    • Pins: 3V, G, D8, D7, D6, D5, D4, D3, D2, D1, D0, A0, S3, S2, S1, SC, S0, SK, EN, VIN, RST, VU
    • Description: WiFi module for wireless communication.

  12. 0.96" OLED

    • Pins: GND, VDD, SCK, SDA
    • Description: Displays the sensor data.

  13. LED: Two Pin (blue)

    • Pins: cathode, anode
    • Description: Indicates the status of the circuit.

Wiring Details

MKE-S15 DS18B20 Waterproof Temperature Sensor

Resistor (4700 Ohms)

TDS Sensor

Resistor (1800 Ohms)

Resistor (3300 Ohms)

18650 Li-Ion Battery

TP4056

Reed Switch

Arduino UNO

JSN-SR04T Ultrasonic Sensor

ESP8266

0.96" OLED

LED: Two Pin (blue)

Documented Code

Arduino UNO Code

/*
 * Smart Water Bottle
 * This Arduino sketch reads data from a temperature sensor, TDS sensor, 
 * ultrasonic sensor, and reed switch to monitor the water quality, 
 * temperature, level, and lid status of a smart water bottle. The data 
 * is displayed on an OLED screen and can be accessed wirelessly via WiFi.
 */

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include <ESP8266WiFi.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

#define ONE_WIRE_BUS 2
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

#define TDS_PIN A1
#define TRIG_PIN 3
#define ECHO_PIN 4
#define REED_PIN 7

const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";

WiFiServer server(80);

const int maxWaterLevel = 30; // Maximum water level in cm
int previousWaterLevel = maxWaterLevel;

void setup() {
  Serial.begin(9600);
  sensors.begin();
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(REED_PIN, INPUT);
  if(!display.begin(SSD1306_I2C_ADDRESS, OLED_RESET)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  display.display();
  delay(2000);
  display.clearDisplay();
  
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(F("."));
  }
  Serial.println(F("WiFi connected"));
  server.begin();
  Serial.println(F("Server started"));
  Serial.print(F("IP Address: "));
  Serial.println(WiFi.localIP());
}

void loop() {
  sensors.requestTemperatures();
  float temperature = sensors.getTempCByIndex(0);
  int tdsValue = analogRead(TDS_PIN);
  long duration, distance;
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delay