Leak Control is a product capable of detecting and controlling irregular flows in a water system via Amazon Web Services. The product was a project for Advanced Microprocesessors class.
To measure the amount of water that passes through a pipe, i use a water flow meter sensor.
Readings of the water flow sensor are processesed by an ATmega328p Microcontroller (Board Pro Mini)
Once the readings are obtained, the ATmega328p Microcontroller will send them by serial to the WiFi Module ESP8266 (D1 mini), then, it will process and send them to the AWS endpoint.
The user will be able to access a Web application, where he will be able to see the water consumption in real time.
In case an irregular flow is detected, it will alert the user.
The user has the possibility of controll a solenoid valve to open/close the flow of water in the valve, from the web app.
Prerequisites for Arduino (ESP8266 programming):
- Arduino IDE
- Board Manager for ESP8266
- Headers -- ESP8266WiFi.h -- PubSubClient.h -- time.h
Note: In order to work don't forget to update your credential and private key, and the shadow thing endpoint in the .ino file.
Prerequisites for AVR (ATmega328p programming):
- AVR IDE
Prerequisites for AWS:
- AWS Account -- Create a Thing in AWS-IOT Core -- Create and download their certificates and private/public key
you can follow this tutorial.
Note: In order to work replace the folder mqtt-explorer in the AWS SDK-JS location: "/connect_device_package/aws-iot-device-sdk-js/examples/browser ". Don't forget to update your credential and private key, and the shadow thing endpoint in the config/bundle javascript files.
This is a video of the working project.You can see how i close/open the solonoid with the web-app sending a MQTT to a specific topic which the ESP8266 is suscribed.
For reasons of time (i need to get a job instead of documenting the entire project) i can't do the schematics, if someone really want the schematics contact me and i will do them. But it's pretty simple if you see the code and the datasheet of the microcontroller you will not have any problem :)