:Author: saviour Dagadu :Email: {[email protected]} :Date: 10/08/2023 :Revision: v1.4 :License: Public Domain
Project: {Solar-based Alcohol detector}
----------------------------------------------------Description--------------------------------------------------------------
The solar-based alcohol breath detector system described in the provided code operates as a comprehensive tool designed to assess the alcohol content in a person's breath and convey the results in a clear and informative manner. This innovative device incorporates various components and functionalities to achieve its intended purpose while utilizing solar energy for sustainable operation.
At its core, the system employs an ATmega328P microcontroller to orchestrate the entire process. The detection process hinges on the MQ-3 gas sensor, a fundamental element that senses the alcohol content in the exhaled breath. This sensor generates an analog voltage signal proportional to the alcohol concentration detected, allowing the microcontroller to interpret the magnitude of alcohol presence.
The LCD (Liquid Crystal Display) is a crucial visual interface, where the detected alcohol levels and related information are displayed. A LiquidCrystal_I2C library is utilized to interface with the LCD via an I2C communication protocol. The display not only conveys real-time alcohol levels but also provides guidance during the system's warm-up period, ensuring accurate readings are obtained once the sensor is calibrated.
To ensure reliable and accurate readings, the system incorporates a warm-up phase during which the sensor stabilizes. This warm-up duration is indicated on the LCD, reassuring the user that the device is preparing to deliver precise results. After the warm-up phase, the microcontroller retrieves the alcohol content from the MQ-3 sensor, processes it, and categorizes the user's condition based on preset alcohol level thresholds.
The system employs a set of LED indicators in various colors, each denoting a specific alcohol concentration range. Green LEDs signify sobriety, yellow LEDs indicate mild alcohol consumption and red LEDs signify higher levels of intoxication. By implementing different blinking rates for the LEDs, the system enhances the visual impact, reflecting the severity of the situation. Moreover, a buzzer is incorporated, emitting distinct tones when alcohol levels surpass a certain threshold, providing an auditory warning to the user.
A notable feature of this system is its energy efficiency achieved through solar power. By utilizing a solar panel, the system can harvest and store energy from the sun, ensuring prolonged and sustainable operation without the need for frequent battery replacements or external power sources.
== Step 1: Installation Please describe the steps to install this project.
For example:
- Open this file
- Edit as you like
- Release to the World!
== Step 2: Assemble the circuit
Assemble the circuit following the diagram layout.png attached to the sketch
== Step 3: Load the code
Upload the code contained in this sketch onto your board
=== Folder structure
.... sketch123 => Arduino sketch folder ├── sketch123.ino => main Arduino file ├── schematics.png => (optional) an image of the required schematics ├── layout.png => (optional) an image of the layout └── ReadMe.adoc => this file ....
=== License This project is released under an {MIT} License.
=== Contributing To contribute to this project please contact [email protected]
=== BOM Add the bill for the materials you need for this project.
|=== | ID | Part name | Part number | Quantity | R1 | 10k Resistor | 1234-abcd | 10 | L1 | Red LED | 2345-asdf | 5 | A1 | Arduino Zero | ABX00066 | 1 |===
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