Smart Kettle App

Requirements

// boost
sudo apt-get install libboost-dev

// g++
sudo apt install g++


// nlohmann - json formatter
sudo apt-get install nlohmann-json3-dev

// Pistache
sudo add-apt-repository ppa:pistache+team/unstable
sudo apt update
sudo apt install libpistache-dev

Compile and run

g++ smart_kettle.cpp -o main -lpistache -lmosquitto -lcrypto -lssl -lpthread  -std=c++17

./main

HHTP

1. Warm liquid at the specified temperature

GET /warmLiquid/temperature/scale

2. Find the viscosity of the containing liquid and set the recommended boiling temperature

GET /boilLiquidByViscosity

The kettle uses the information from the viscosity sensor to find the optimal temperature of the containing liquid.

{
  "message": "The temperature has been set to 90 degrees",
  "timestamp": "Tue May 25 09:27:18 2021"
}

3. Make tea

POST /makeTea

---

The kettle boils the water to the specified temperature, inserts the tea infuser into the water for a certain amount of time and after the infusion it keeps your tea warm.

Input format:

{
  "keepWarm": true,
  "temperature": {
    "temperature": "100",
    "scale": "C"
  },
  "time": 5
}

Output format:

{
  "message": "Preparing your tea...The temperature has been set to 100 C degrees. Infusion time: 5 minutes. ",
  "timestamp": "Tue May 25 09:33:03 2021"
}

4. Set a recurrent boiling schedule

POST /warmLiquidByDate

---

Set a recurring event if you want to prepare your drink at a certain hour of the day.

Input format:

{
  "recurrent": true,
  "temperature": {
    "temperature": "30",
    "scale": "F"
  },
  "hour": "22:30"
}

Output format:

{
  "message": "Scheduler is set at 22:30. Temperature: 50 degrees F. ",
  "timestamp": "Tue May 25 09:41:48 2021"
}

5. Stir the liquid at the specified rpm

GET /stirLiquid/rmp

---

MQTT

1. Required libraries

sudo apt install mosquitto
sudo apt install mosquitto-client

2. Interacting with the device

1. Warm tea

mosquitto_sub -t kettle/temp/70/C -C 1

2. Get scheduler settings

mosquitto_sub -t kettle/scheduler -C 1

3. Get viscosity of the coWntaining liquid and the recommended temperature

mosquitto_sub -t kettle/viscosity -C 1

Team Members

---

• Busuioc Andrei
• Iamandii Ana-Maria
• Manea Cristina Larisa
• Nazare Daniela Andreea
• Rusu Iuliana
• Talmacel Sergiu-Victor