DUO Water Tank Control Unit

Your coffee machine and hot water dispenser water tanks will never be empty again! No pumps, just water valves controlled by Arduino.

Feb 24, 2020

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5 respects

Components and supplies

2

RGB Diffused Common Cathode

1

HC-05 Bluetooth Module

1

Power Supply 12V

1

Ultrasonic Sensor - HC-SR04 (Generic)

1

Prototype shield I/O extension board for Arduino Nano V3

1

Power supply 5V 700mA

2

Electronic magnet valve 12V

1

Arduino Nano R3

Project description

Code

Downloadable files

Fritzing Bread board schematic

Image

Fritzing Bread board schematic

State diagram

The state engine diagram below will help you to understand how the control unit works and helps to read the source code. It also gives a guide to modify the program parameters reflecting the water tank parameters.

State diagram

Fritzing Bread board schematic

Image

Fritzing Bread board schematic

Installation diagram

The installation shows how the pluming can be done and how the components are connected to the main control unit. Make sure to keep the pluming lines between main supply and the valves as short as possible to avoid building up pressure.

Installation diagram

Fritzing Bread board schematic

Use this schematic to setup the projects electronics around the Arduino Nano

Fritzing Bread board schematic

Fritzing Bread board schematic

Use this schematic to setup the projects electronics around the Arduino Nano

Fritzing Bread board schematic

Installation diagram

The installation shows how the pluming can be done and how the components are connected to the main control unit. Make sure to keep the pluming lines between main supply and the valves as short as possible to avoid building up pressure.

Installation diagram

State diagram

The state engine diagram below will help you to understand how the control unit works and helps to read the source code. It also gives a guide to modify the program parameters reflecting the water tank parameters.

State diagram

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