Circuit Documentation

Summary

This document provides a detailed overview of a circuit designed using an Arduino MKR WiFi 1010 microcontroller. The circuit includes various sensors such as a water level sensor, gas sensor, light sensor, steam sensor, and a DHT11 temperature and humidity sensor. Additionally, a rotary encoder is used for user input. The Arduino reads data from these sensors and outputs the readings via serial communication.

Component List

Arduino MKR WiFi 1010

• Description: A microcontroller board based on the SAMD21 Cortex-M0+ 32-bit ARM processor with built-in WiFi.
• Pins: A0, A1, A2, A3, A4, A5, A6, D0, D1, D2, D3, D4, D5, D6, D7, MOSI, SCK, MISO, SDA, SCL, RX, TX, RESET, GND, VCC, VIN, 5V

Water Level Sensor

• Description: A sensor used to measure the level of water.
• Pins: SIG, VCC, GND

MKE-S08 MQ-2 Sensor

• Description: A gas sensor used to detect gas levels.
• Pins: GND, 5V, SIG

TEMT6000

• Description: A light sensor used to measure ambient light levels.
• Pins: Signal, GND, 5V

Steam Sensor

• Description: A sensor used to detect steam levels.
• Pins: S, 5V, GND

KY-015 DHT11

• Description: A temperature and humidity sensor.
• Pins: 5V, S, GND

Rotary Encoder

• Description: A device used to measure the rotation angle and direction.
• Pins: clk, dt, sw, gnd, +

Wiring Details

Arduino MKR WiFi 1010

• 5V: Connected to 5V pins of KY-015 DHT11, Rotary Encoder, Steam Sensor, TEMT6000, MKE-S08 MQ-2 Sensor, and VCC pin of Water Level Sensor.
• GND: Connected to GND pins of Rotary Encoder, KY-015 DHT11, Steam Sensor, TEMT6000, MKE-S08 MQ-2 Sensor, and Water Level Sensor.
• A0: Connected to SIG pin of Water Level Sensor.
• A1: Connected to SIG pin of MKE-S08 MQ-2 Sensor.
• A2: Connected to Signal pin of TEMT6000.
• A3: Connected to S pin of Steam Sensor.
• D4: Connected to S pin of KY-015 DHT11.
• D5: Connected to dt pin of Rotary Encoder.
• D6: Connected to sw pin of Rotary Encoder.
• D7: Connected to clk pin of Rotary Encoder.

Water Level Sensor

• SIG: Connected to A0 pin of Arduino MKR WiFi 1010.
• VCC: Connected to 5V pin of Arduino MKR WiFi 1010.
• GND: Connected to GND pin of Arduino MKR WiFi 1010.

MKE-S08 MQ-2 Sensor

• SIG: Connected to A1 pin of Arduino MKR WiFi 1010.
• 5V: Connected to 5V pin of Arduino MKR WiFi 1010.
• GND: Connected to GND pin of Arduino MKR WiFi 1010.

TEMT6000

• Signal: Connected to A2 pin of Arduino MKR WiFi 1010.
• 5V: Connected to 5V pin of Arduino MKR WiFi 1010.
• GND: Connected to GND pin of Arduino MKR WiFi 1010.

Steam Sensor

• S: Connected to A3 pin of Arduino MKR WiFi 1010.
• 5V: Connected to 5V pin of Arduino MKR WiFi 1010.
• GND: Connected to GND pin of Arduino MKR WiFi 1010.

KY-015 DHT11

• S: Connected to D4 pin of Arduino MKR WiFi 1010.
• 5V: Connected to 5V pin of Arduino MKR WiFi 1010.
• GND: Connected to GND pin of Arduino MKR WiFi 1010.

Rotary Encoder

• dt: Connected to D5 pin of Arduino MKR WiFi 1010.
• sw: Connected to D6 pin of Arduino MKR WiFi 1010.
• clk: Connected to D7 pin of Arduino MKR WiFi 1010.
• +: Connected to 5V pin of Arduino MKR WiFi 1010.
• gnd: Connected to GND pin of Arduino MKR WiFi 1010.

Documented Code

// Pin definitions
const int waterLevelSensorPin = A0;
const int gasSensorPin = A1;
const int lightSensorPin = A2;
const int steamSensorPin = A3;
const int dht11Pin = 4;
const int rotaryEncoderDtPin = 5;
const int rotaryEncoderSwPin = 6;
const int rotaryEncoderClkPin = 7;

// Include necessary libraries
#include <DHT.h>

// DHT11 sensor setup
#define DHTTYPE DHT11
DHT dht(dht11Pin, DHTTYPE);

void setup() {
  // Initialize serial communication
  Serial.begin(9600);

  // Initialize DHT11 sensor
  dht.begin();

  // Set pin modes
  pinMode(waterLevelSensorPin, INPUT);
  pinMode(gasSensorPin, INPUT);
  pinMode(lightSensorPin, INPUT);
  pinMode(steamSensorPin, INPUT);
  pinMode(dht11Pin, INPUT);
  pinMode(rotaryEncoderDtPin, INPUT);
  pinMode(rotaryEncoderSwPin, INPUT);
  pinMode(rotaryEncoderClkPin, INPUT);
}

void loop() {
  // Read water level sensor
  int waterLevel = analogRead(waterLevelSensorPin);
  Serial.print("Water Level: ");
  Serial.println(waterLevel);

  // Read gas sensor
  int gasLevel = analogRead(gasSensorPin);
  Serial.print("Gas Level: ");
  Serial.println(gasLevel);

  // Read light sensor
  int lightLevel = analogRead(lightSensorPin);
  Serial.print("Light Level: ");
  Serial.println(lightLevel);

  // Read steam sensor
  int steamLevel = analogRead(steamSensorPin);
  Serial.print("Steam Level: ");
  Serial.println(steamLevel);

  // Read DHT11 sensor
  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" *C");

  // Read rotary encoder
  int dtValue = digitalRead(rotaryEncoderDtPin);
  int swValue = digitalRead(rotaryEncoderSwPin);
  int clkValue = digitalRead(rotaryEncoderClkPin);
  Serial.print("Rotary Encoder - DT: ");
  Serial.print(dtValue);
  Serial.print(", SW: ");
  Serial.print(swValue);
  Serial.print(", CLK: ");
  Serial.println(clkValue);

  // Delay for a short period before the next loop
  delay(1000);
}