tank-level-control

Level Control of 6 tanks using embedded systems like Beaglebone, Raspberry Pi, Arduino Uno and Wemos D1 and publishing data to a Python GUI over MQTT

IoT Architecture

In this project the IoT architecture consists in:

• Two tanks are controlled by an Arduino Uno for each one with a PID algorithm controller, these arduinos will be communicating sensor data and PID parameters to the Raspberry Pi through SPI bus communication.
• Two other tanks are also be controlled by an Arduino Uno for each one with a PID algorithm controller, these arduinos will be communicating sensor data and PID parameters to the Beaglebone through I2C bus communication.
• The last two tanks are controlled by a Wemos D1 for each one, these wemos devices will be communicating sensor data and PID parameters through MQTT with the broker.
• Raspberry Pi and Beaglebone are WiFi and MQTT gateways for the arduinos, publishing and subscribing topics to manage the tanks through GUI Control Center.
• The MQTT broker will be installed in the Raspberry Pi.

Installation

GUI

Firstly, clone the repository to your local folder:

git clone https://github.com/davidadrianrg/tank-level-control

After that, edit configuration.yaml file with your network and bus settings. Make sure you have installed the python dependencies for this project. You can do it using pip3 python package manager:

pip3 install matplotlib tk paho.mqtt pyyaml

Raspberry Pi

Copy raspberry.py and configuration.yaml files to your Raspberry Pi. You can do that using the scp command for ssh communication:

scp ./raspberry.py pi@your_raspberry_ip:/home/pi/tank-level-control/.
scp ./configuration.yaml pi@your_raspberry_ip:/home/pi/tank-level-control/.

Make sure you have installed the python dependencies for this project in your Raspberry Pi. You can do it using pip3 python package manager:

pip3 install paho.mqtt pyyaml spidev

And install the mosquitto mqtt broker if you want to have it in your Raspberry Pi:

sudo apt-get install mosquitto

Beaglebone

Copy beaglebone.py and configuration.yaml files to your Raspberry Pi. You can do that using the scp command for ssh communication:

scp ./beaglebone.py debian@your_beaglebone_ip:/home/debian/tank-level-control/.
scp ./configuration.yaml debian@your_beaglebone_ip:/home/debian/tank-level-control/.

Make sure you have installed the python dependencies for this project in your Beaglebone. You can do it using pip3 python package manager:

pip3 install paho.mqtt pyyaml smbus2

Arduino Uno as I2C slave

Firstly, setup the same i2c slave address in slavei2c_arduino.ino as in your configuration.yaml file. After that you can flash your arduino using the Arduino IDE. Repeat the process for the second arduino changing the slave address.

Arduino Uno as SPI slave

The script slaveSPI_arduino.ino is common for the two spi arduino slaves, you only have tu flash them using the Arduino IDE.

Wemos D1

You need to setup your wifi and mqtt settings in wemosPID.ino

#define ssid "WIFISSID"
#define pswd "WIFIPASS"
#define brokerIP "YOUR_IP_BROKER"
#define brokerPort 1883

For the second wemos you must change the topics for the plant 6:

#define dataTopic "plant6/data"
#define parametersTopic "plant6/parameters"
#define getParametersTopic "plant6/get_parameters"
#define onoffTopic "plant6/on_off"
#define updateTopic "plant6/update_parameters"

Flash both wemos using the Arduino IDE, make sure you have installed the ESP8266 libraries

Usage

1. Make the electronics connections for i2c and spi buses, and for the arduino/wemos to the plants
2. Power on the arduinos and wemos
3. Execute raspberry.py and beaglebone.py using ssh into your Raspberry Pi and Beaglebone respectively
4. Run GUI control center from your computer executing gui_tank_level_control.py
5. Just control your systems