# Title: Alcohol Click Board™ ## Description: The Alcohol Click Board™ has a high sensitivity to alcohol and it can be used to detect alcohol in concentrations from 0.04 to 4mg/l. Alcohol click carries an MQ-3 Semiconductor sensor for alcohol. The click is designed to run on a 5V power supply only. It communicates with the target microcontroller through the AN pin on the mikroBUS™ line. MQ-3 Sensor Features The gas sensing layer on the sensor unit is made of Tin dioxide (SnO2), an inorganic compound that has lower conductivity in clean air. The conductivity increases as the levels of alcohol gas rise. Sensor Calibration To calibrate the sensor for the environment you'll be using it in, the Alcohol Click Board™ has a small potentiometer that allows you to adjust the Load Resistance of the sensor circuit. Key Features MQ-3 sensor Concentration: 0.04-4mg/l alcohol Sensitivity: Rs(in air)/Rs(0.4mg/LAlcohol)≥5 Interface: Analog 5V power supply ## Product type: Click Board ## Vendor: Mikroelektronika d.o.o. ## Tags: Alcohol, Click Board, Gas, Hanwei Electronics, MikroE, Sensor ## Price range: 12.6 - 12.6 GBP ## Link: https://thedebugstore.com/products/alcohol-click-board-mikroe-1586-uk ## Compare-at price range: 18.0 - 18.0 GBP ## Options - Title: Default Title ## Collections - [New Products](https://thedebugstore.com/a/llms/collections/new-products-debug-store) - [Mikroelektronika d.o.o. (MikroE)](https://thedebugstore.com/a/llms/collections/mikroelektronika-catalogue-uk) - [Hanwei Electronics Gas Sensor Support: Debug Store's Development Boards and Tools](https://thedebugstore.com/a/llms/collections/hanwei-electronics-device-support) - [Sensor Click Boards™](https://thedebugstore.com/a/llms/collections/sensor-click-boards-catalogue) - [MikroE Click Boards™](https://thedebugstore.com/a/llms/collections/mikroe-click-boards-catalogue-uk) - [Gas Sensor Click Boards™](https://thedebugstore.com/a/llms/collections/gas-sensor-click-boards-catalogue) - [Click Boards™ Summer Sale](https://thedebugstore.com/a/llms/collections/inventory-sale) - [MikroE Sale](https://thedebugstore.com/a/llms/collections/mikroe-sale) - [MIKROE Stock](https://thedebugstore.com/a/llms/collections/mikroe-products-in-stock-sale) ## Variants - Default Title, SKU: MIKROE-1586, Available: yes, Inventory: 3 ## Metafields - full_description:

The Alcohol Click Board™ has a high sensitivity to alcohol and it can be used to detect alcohol in concentrations from 0.04 to 4mg/l.

Alcohol click carries an MQ-3 Semiconductor sensor for alcohol. The click is designed to run on a 5V power supply only. It communicates with the target microcontroller through the AN pin on the mikroBUS™ line. 

MQ-3 Sensor Features

The gas sensing layer on the sensor unit is made of Tin dioxide (SnO2), an inorganic compound that has lower conductivity in clean air. The conductivity increases as the levels of alcohol gas rise.

Sensor  Calibration

To calibrate the sensor for the environment you'll be using it in, the Alcohol Click Board™ has a small potentiometer that allows you to adjust the Load Resistance of the sensor circuit.

Key Features

- description_tag: Add a high-sensitivity alcohol gas sensor to your design with the addition of Alcohol Click Board™. The board incorporates an MQ-3 high-sensitivity alcohol sensor to detect alcohol concentration. Available from Debug Store UK. - title_tag: MikroE Alcohol Click Board™ (MIKROE-1586) - manufacturer: Mikroelektronika d.o.o. - warranty: 12 months - amazon_enable: TRUE - amazon_title: Alcohol Click Board - amazon_product_type: computercomponent - amazon_block: FALSE - amazon_prime_enable: FALSE - amazon_search: MikroElektronika Microelectronica MIKROE-1100 - amazon_uk_price: 13.2 - amazon_uk_currency: GBP - amazon_de_currency: EUR - amazon_de_price: 14.916 - amazon_fr_currency: EUR - amazon_fr_price: 14.916 - amazon_es_currency: EUR - amazon_es_price: 14.916 - amazon_nl_currency: EUR - amazon_nl_price: 14.916 - amazon_it_currency: EUR - amazon_it_price: 14.916 - amazon_se_curency: SEK - amazon_se_price: 150.48 - amazon_product_id: 8606015075419 - amazon_product_id_type: EAN - amazon_update: Update - amazon_short_description: Add a high-sensitivity alcohol gas sensor to your design with the addition of Alcohol Click Board™. The board incorporates a MQ-3 high-sensitivity alcohol sensor to detect alcohol concentration. Made of an inorganic compound called Tin dioxide (SnO2), the gas sensing layer on the MQ-3 sensor unit has lower conductivity in clean air. However, the sensitivity rises as the levels of alcohol gas rise.Alcohol Click Board™ features a small potentiometer for calibration that enables the user to set its own scale and adjust the load resistance of the sensor circuit. Using the AN (OUT) MikroBUS line, Alcohol Click Board™ communicates with the target board. This board is designed to use 5V power supply only.It offers very good sensitivity and fast response to alcohol gases, and is designed to detect presence of alcohol in concentrations from 0.04 to 4mg/l. It makes an ideal choice for portable alcohol detector and breathalysers for estimating BAC (blood alcohol content).. - amazon_long_description:

IC/Module: MQ-3 Semiconductor Sensor

A semiconductor sensor for alcohol detection, MQ-3 exhibits fast response and high sensitivity to alcohol gas in the air. It has a wide detection range (from 0.04 to 4mg/l) and outputs its reading as an analog voltage. However, it is also suitable for different applications.

High Conductivity under Presence of Alcoholic gas

The MQ-3 alcohol sensor aboard Alcohol Click has a Tin dioxide (SnO2) gas sensing layer, which shows low sensitivity in clean air. The sensor conductivity increases as the levels of alcohol gas rise.

Sensor Calibration for the Environment

A small, on-board potentiometer allows the user to adjust the load resistance of the sensor circuit according to the environment it is used.

- amazon_main_image: https://www.thedebugstore.com/images/product/lg-mikroe-click-alcohol_1.jpg - amazon_browse_node: 428655031 - mpn: MIKROE-1586 - backorder_label: If no stock shown above, check availability - badge: - widget:

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- examples:

Application Task

Reads the ADC value and prints in two forms (DEC and HEX).


void application_task ( void ) {
    uint16_t alcohol_an_value = 0;

    if ( alcohol_read_an_pin_value ( &alcohol, &alcohol_an_value ) != ADC_ERROR ) {
        log_printf( &logger, " ADC Value : %u\r\n", alcohol_an_value );
    }

    float alcohol_an_voltage = 0;

    if ( alcohol_read_an_pin_voltage ( &alcohol, &alcohol_an_voltage ) != ADC_ERROR ) {
        log_printf( &logger, " AN Voltage : %.3f[V]\r\n\n", alcohol_an_voltage );
    }

    Delay_ms( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager (recommended way), downloaded from our LibStock™ or found on Mikroe GitHub account.

Other Mikroe Libraries used in the example:

Additional Notes and Information

Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.

- attachments: [{"download_file":[{"download_file":"Alcohol Click Board™ Schematic"}],"download_filetype":[{"download_filetype":"pdf"}]},{"download_file":[{"download_file":"Winsen MQ-3 Alcohol Sensor Datasheet"}],"download_filetype":[{"download_filetype":"pdf"}]}] - condition: new - custom_product: false - mpn: MIKROE-1586 - google_product_category: Electronics - custom_label_0: Click Board - device_vendor: Hanwei Electronics - device_type: MQ-3 - warranty: 12 months - brand: MikroE - manufacturer: Mikroelektronika d.o.o. - brands: gid://shopify/Metaobject/56256004319 - breadcrumbs: ["gid://shopify/Collection/447955239135","gid://shopify/Collection/241680580797","gid://shopify/Collection/241545969853"] - customhs_code: 847330 - summary:

Add a high-sensitivity alcohol gas sensor to your design with the addition of Alcohol Click Board™. The board incorporates an MQ-3 high-sensitivity alcohol sensor to detect alcohol concentration. Made of an inorganic compound called Tin dioxide (SnO2), the gas sensing layer on the MQ-3 sensor unit has lower conductivity in clean air. However, the sensitivity rises as the levels of alcohol gas rise.

The Alcohol Click Board™ features a small potentiometer for calibration that enables the user to set its own scale and adjust the load resistance of the sensor circuit. Using the AN (OUT) MikroBUS line, Alcohol Click Board™ communicates with the target board. This board is designed to use a 5V power supply only.

It offers very good sensitivity and fast response to alcoholic gases and is designed to detect the presence of alcohol in concentrations from 0.04 to 4mg/l. It makes an ideal choice for portable alcohol detector and breathalysers for estimating BAC (blood alcohol content).
.