Wireless-Sensor-Network

This project consists of valuing the amount of temperature CO2 and humidity for the greenhouses is analysed. Technologies: python, Kafka, influxdb, grafana, teflage, flutter and a raspberry Pi3 board.

Installation

Clone the project

  cd my-project
  pip install requirements.txt 

Documentation

[Prerequisites]

APT must be up to date. If in doubt, type the following command:

    sudo apt-get update
    sudo apt-get install 

[Docker installation]

1.Download Docker

    sudo apt-get install -y docker.io

2.To check that Docker is correctly installed with the command :

    docker -v
    Docker version 20.10.7, build 20.10.7-0ubuntu5~20.04.2

[Installing Docker Compose]

1.Download the version with the latest release from the official Docker repository :https://github.com/docker/compose/releases

Exemple:

 sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

2.Apply executable permissions to the binary

sudo chmod +x /usr/local/bin/docker-compose

3.To check that Docker is correctly installed with the command :

    docker-compose -v
    Docker Compose version v2.2.3

[Make another user]

It is recommended, for security reasons, to create a dedicated user for managing Docker volumes and not to run it as your superuser. And you can work in your superuser.

1.Let's create a user with the name grafana:

    sudo adduser grafana

2.Add it to the docker group:

    sudo adduser grafana docker

[Creation of Telegraf, InfluxDB and Grafana volumes] 1.Log in as user grafana :

    su grafana

2.Move to this user's home directory:

    cd

3.Create the file /home/grafana/docker-compose.yml and change the highlighted lines to the desired configuration or just moved from project directory to /home/grafana/ and make the changes:

    vim /home/grafana/docker-compose.yml

docker-compose.yml

version: "3"
services:
  influxdb:
    image: influxdb:latest
    container_name: influxdb
    restart: always
    hostname: influxdb
    networks:
      - lan
    ports:
      - 8086:8086
    environment:
      INFLUX_DB: "telegraf"
      INFLUXDB_USER: "admin"             // you can change this value
      INFLUXDB_USER_PASSWORD: "admin"    // you can change this value
    volumes:
      - influxdb-data:/var/lib/influxdb
 
  telegraf:
    image: telegraf:latest
    depends_on:
      - influxdb
    container_name: telegraf
    restart: always
    networks:
      - lan
    links:
      - influxdb:influxdb
    tty: true
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /home/grafana/telegraf/telegraf.conf:/etc/telegraf/telegraf.conf
    privileged: true
 
  grafana:
    image: grafana/grafana:latest
    depends_on:
      - influxdb
    container_name: grafana
    restart: always
    networks:
      - lan
    ports:
      - 3000:3000
    links:
      - influxdb:influxdb
    environment:
      GF_INSTALL_PLUGINS: "grafana-clock-panel,\
                          grafana-influxdb-08-datasource,\
                          grafana-kairosdb-datasource,\
                          grafana-piechart-panel,\
                          grafana-simple-json-datasource,\
                          grafana-worldmap-panel"
      GF_SECURITY_ADMIN_USER: "admin"                         // you can change this value
      GF_SECURITY_ADMIN_PASSWORD: "admin"                     // you can change this value
    volumes:
      - grafana-data:/var/lib/grafana
volumes:
  influxdb-data:
  grafana-data:
networks:
  lan: 
}

REMARQUE

INFLUXDB_USER: user created with read/write rights on the INFLUX_DB database.

INFLUXDB_USER_PASSWORD: password of the user INFLUXDB_USER.

GF_SECURITY_ADMIN_USER : administrator of the Grafana interface.

GF_SECURITY_ADMIN_PASSWORD: password of the Grafana administrator.

4.Create the Telegraf configuration directory and generate an updated configuration file with the following command:

    mkdir telegraf
    docker run --rm telegraf telegraf config > telegraf/telegraf.conf

5.Replace this lines in the configuration file /home/grafana/telegraf/telegraf.conf :

telegraf.conf

# Configuration for telegraf agent
[agent]
  
  interval = "10s"
 
  round_interval = true


  metric_batch_size = 1000
 

  metric_buffer_limit = 10000
 
 
  collection_jitter = "0s"
 
  
  flush_interval = "10s"
 

  flush_jitter = "0s"
 

  precision = ""
 

  hostname = ""
 
  omit_hostname = false
 
[[outputs.influxdb_v2]]
 

  urls = ["http://192.168.1.9:8086"]    ##address of your machine
 
  ## Token for authentication.
  token = ""                            ##get the token from influxDb
 
  ## Organization is the name of the organization you wish to write to; must exist.
  organization = ""                     ##name your organization
 
  ## Destination bucket to write into.
  bucket = ""                           ##give the name of your bucket
 

[[inputs.kafka_consumer]]
  brokers = ["192.168.1.9:9092"]
  topics = [""]                         ##name of your topic
  data_format = "json_v2"
  [[inputs.kafka_consumer.json_v2]]
        [[inputs.kafka_consumer.json_v2.field]]
            path = "CO2" 
  [[inputs.kafka_consumer.json_v2]]
        [[inputs.kafka_consumer.json_v2.field]]
            path = "TVOC" 
  [[inputs.kafka_consumer.json_v2]]
        [[inputs.kafka_consumer.json_v2.field]]
            path = "Temp" 

6.Start the containers:

    docker-compose up -d

Screenshots

Kafka

1.Installing java

    sudo apt install default-jre
    sudo apt install default-jdk

2.To check that java is correctly installed with the command :

    java -version

3.Download Kafka

    wget https://archive.apache.org/dist/kafka/2.6.0/kafka_2.13-2.6.0.tgz

4.extract

    tar -xvf kafka_2.13-2.6.0.tgz

5.Start zookeeper

    zookeeper-server-start.sh config/zookeeper.properties

5.Start kafka

    kafka-server-start.sh config/server.properties

6.Create topic with the name "registred_user"

    kafka-topics.sh --bootstrap-server 127.0.0.1:9092 --topic registred_user --create

Result_screenshot