Mikroelektronika d.o.o.
SKU: MIKROE-5646CO2 3 Click Board
CO2 3 Click Board
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Key Features
- Utilizing the photoacoustic spectroscopy principle, high accuracy, compact size, direct ppm readout thanks via onboard MCU, operating range up to 32.000ppm, vast lifetime, selectable communication interface, and more
- Based on the XENSIV™ PASCO2V01BUMA1 - CO2 sensor module from Infineon Technologies
- Can be used for air purifiers, thermostats, and HVAC (heating, ventilation, and air conditioning) systems
- mikroBUS: I2C, PWM, Analogue and UART Interfaces
The CO2 3 Click Board™: Measure Indoor Air Quality with Precision and Reliability
Introducing the CO2 3 Click Board™, the compact add-on board that gives precise and reliable indoor air quality measurements. Powered by the advanced XENSIV™ PASCO2V01BUMA1 CO2 sensor module from Infineon Technologies, this board utilizes cutting-edge photoacoustic spectroscopy technology to ensure accurate indoor air quality readings.
Highly Accurate Sensor Module
The CO2 3 Click Board™ features the state-of-the-art XENSIV™ PASCO2V01BUMA1 CO2 sensor module. Developed by Infineon Technologies, this module incorporates a gas measuring cell, an IR emitter, a microphone, and a powerful microcontroller for data processing. With in-house development, we guarantee the highest quality and performance for your air quality measurements.
Key Features:
- High Accuracy: Rest assured with precise CO2 measurements for your indoor environment.
- Low Power Consumption: Enjoy long-term usage without draining your power resources.
- Versatile Configuration: Customize the Click board™ to suit your specific needs.
Applications:
The CO2 3 Click Board™ is the ideal choice for various applications, including:
- Building automation
- Smart home appliances
- Air quality monitoring
Ready for Seamless Integration
With the support of a mikroSDK-compliant library, developing software for the CO2 3 Click Board™ is a breeze. Our comprehensive library includes functions that simplify the development process, allowing you to focus on what matters most - providing accurate air quality data.
Order your fully tested CO2 3 Click Board™ today and experience the ultimate precision and reliability in indoor air quality measurements. Get started with ease on any system equipped with the mikroBUS™ socket.
How Does The CO2 3 Click Board™ Work?
The CO2 3 Click Board™ is based on the XENSIV™ PASCO2V01BUMA1, the smallest CO2 sensor module from Infineon Technologies that uses photoacoustic spectroscopy technology to measure indoor air quality. The module consists of a gas measuring cell with an infrared (IR) emitter, a high-SNR microphone as the acoustic detector, and an XMC™ microcontroller for data processing, delivering exceptional accuracy, boasting a rate of ±30ppm ±3% of reading. Its diffuser port allows for efficient gas exchange while maintaining dust protection, and its acoustic isolation ensures highly accurate CO2 sensing information. Because of its superior features, this board makes an excellent choice for building automation, smart home appliances, and air quality monitoring, including air purifiers, thermostats, and HVAC systems. Its precise measurements can help optimize indoor air quality, improving human health, productivity, and comfort.
As mentioned, the PASCO2V01BUMA1 overcomes the size, performance, and assembly challenges of existing CO2 sensor solutions by using photoacoustic spectroscopy (PAS). It uses pulses of light from an infrared source that pass through an optical filter explicitly tuned to the CO2 absorption wavelength. The CO2 molecules inside the measurement chamber absorb the filtered light, causing the molecules to shake and generate a pressure wave with each pulse, known as the photoacoustic effect. The sound is then detected by an acoustic detector optimized for low-frequency operation, and the microcontroller converts the output into a CO2 concentration reading. This results in a highly accurate and reliable measurement of CO2 levels in real time.
All significant components of the XENSIV™ PASCO2V01BUMA1 CO2 module are developed in-house according to Infineon's high-quality standards, ensuring the highest quality and performance. The dedicated MCU runs advanced compensation algorithms to deliver direct and reliable ppm readouts of actual CO2 levels. The available configuration options, such as ABOC, pressure compensation, signal alarm, sample rate, and early measurement notification, make this board one of the most versatile plug-and-play CO2 solutions on the market.
This Click board™ comes with a configurable host interface that allows communication with MCU using the selected interface. The PASCO2V01BUMA1 can communicate with MCU using the UART interface with commonly used UART RX and TX pins as its default communication protocol operating at 115200bps to transmit and exchange data with the host MCU or using the optional I2C interface. The I2C interface is compatible with the Fast-Mode allowing a maximum frequency of 400kHz. Selection is made by positioning SMD jumpers marked COMM SEL to the appropriate position. All jumpers must be on the same side, or the Click board™ may become unresponsive.
As a third option for communication with the MCU, users have a PWM interface controlled via the PWS pin of the mikroBUS™ socket. The PWS pin is first asserted after the Power-On boot sequence (not after soft reset), and the level of the pin is checked. If a low level is detected, an internal interrupt routine configures the device into Continuous mode and starts a measurement sequence. At the end of each measurement sequence, the level of this pin is polled. If it is high, the device is configured back to Idle mode. The PWO pin, routed to the AN pin of the mikroBUS™ socket by default, offers the possibility to read out the CO2 concentration by delivering a PWM signal whose timing information contains the CO2 concentration value. At the end of each measurement sequence, the device updates the PWM timing with the measured CO2 concentration. This board also possesses an additional interrupt alert signal, routed on the INT pin of the mikroBUS™ socket, to provide a notification of CO2 measurements that violate programmed thresholds.
The CO2 3 Click Board™ can only be operated with a 3.3V logic voltage level. Since the sensor module for proper operation requires a voltage level of 12V, this Click board™ also features the TLV61046A, a voltage boost converter to generate a stable 12V supply. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used as a reference for further development.
SPECIFICATIONS
| Type | Gas |
| Applications | It can be used for air purifiers, thermostats, and HVAC (heating, ventilation, and air conditioning) systems |
| On-board modules | XENSIV™ PASCO2V01BUMA1 - CO2 sensor module from Infineon Technologies |
| Key Features | Based on the photoacoustic spectroscopy principle, high accuracy, compact size, direct ppm readout thanks via onboard MCU, operating range up to 32.000ppm, vast lifetime, selectable communication interface, and more |
| Interface | Analog,I2C,PWM,UART |
| Compatibility | mikroBUS |
| Click board size | M (42.9 x 25.4 mm) |
| Input Voltage | 3.3V,5V |
PINOUT DIAGRAM
This table shows how the pinout of the CO2 3 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter is shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| PWM CO2 Concentration Signal | PWO | 1 | AN | PWM | 16 | PWS | PWM Interface Control |
| NC | 2 | RST | INT | 15 | INT | Interrupt | |
| NC | 3 | CS | RX | 14 | TX | UART TX | |
| NC | 4 | SCK | TX | 13 | RX | UART RX | |
| NC | 5 | MISO | SCL | 12 | SCL | I2C Clock | |
| NC | 6 | MOSI | SDA | 11 | SDA | I2C Data | |
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | 5V | Power Supply |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
ONBOARD SETTINGS AND INDICATORS
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| JP1-JP2 | COMM SEL | Right | Communication Interface Selection UART/I2C: Left position UART, Right position I2C |
CO2 3 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | - | 3.3 | - | V |
| Operating Range | 0 | - | 32.000 | ppm |
| Accuracy | - | ±30 | - | ppm |
Software Support
We provide a library for the CO2 3 Click Board™ and a demo application (example), developed using MIKROE compilers. The demo can run on all the main MIKROE development boards.
The package can be downloaded/installed directly from NECTO Studio The package Manager (recommended), downloaded from our LibStock™ or found on the MikroE Github account.
Library Description
This library contains API for the CO2 3 Click Board™ driver.
Key functions
-
co23_get_co2_ppmCO2 3 get CO2 concentration function. -
co23_set_meas_cfgCO2 3 set measurement configuration function. -
co23_set_pressure_refCO2 3 set reference pressure function.
Example Description
This library contains API for the CO2 3 Click Board™ driver. This driver provides the functions for sensor configuration and reading the CO2 gas concentration in the air.
void application_task ( void )
{
co23_meas_cfg_t meas_cfg;
meas_cfg.op_mode = CO23_OP_MODE_SINGLE;
co23_set_meas_cfg( &co23, meas_cfg );
Delay_ms( 1000 );
uint16_t co2_ppm = 0;
co23_get_co2_ppm( &co23, &co2_ppm );
log_printf( &logger, " CO2: %d ppmrn", co2_ppm );
log_printf( &logger, "-----------------------rn" );
Delay_ms( 100 );
}
The full application code, and ready to use projects can be installed directly from NECTO Studio. The package Manager (recommended), downloaded from our LibStock™ or found on MikroE Github account.
Other MikroE Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.CO23
Additional Notes and Information
Depending on the development board you are using, you may need USB UART Click Board™, 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 MIKROE compilers.
MIKROSDK
The CO2 3 Click Board™ is supported with mikroSDK - MIKROE Software Development Kit, that needs to be downloaded from the LibStock and installed for the compiler you are using to ensure proper operation of mikroSDK compliant Click board™ demo applications.
CO2 3 Click Board
Frequently Asked Questions
Ask a Question-
Can the CO2 3 Click Board™ be used with other mikroBUS™ compatible boards?
Yes, the CO2 3 Click Board™ is designed to be compatible with the mikroBUS™ socket. It can be easily integrated into systems that support the mikroBUS™ interface, allowing you to combine it with other mikroBUS™ compatible boards for enhanced functionality.
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Is the CO2 3 Click Board™ ready to use?
Yes, the CO2 3 Click Board™ comes as a fully tested product, ready for use on a system equipped with the mikroBUS™ socket. This means you can start using the board without the need for additional testing or calibration.
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What is the mikroSDK library?
The CO2 3 Click Board™ is supported by a mikroSDK-compliant library. The mikroSDK library includes functions that simplify software development, making it easier to integrate the CO2 3 Click Board™ into your system.
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What applications is the CO2 3 Click Board™ suitable for?
The CO2 3 Click Board™ is suitable for a range of applications, including air purifiers, thermostats, and HVAC (heating, ventilation, and air conditioning) systems. It can be used in building automation systems and smart home appliances where indoor air quality monitoring is required.
-
What are the main features of the CO2 3 Click Board™?
The CO2 3 Click Board™ offers high accuracy, low power consumption, and versatile configuration options. It is designed to provide precise and reliable indoor air quality measurements for various applications in building automation, smart home appliances, and air quality monitoring.
-
What are the key components of the CO2 3 Click Board™?
The key components of the CO2 3 Click Board™ include a gas measuring cell, an IR emitter, a microphone, and a microcontroller for data processing. These components are developed in-house to ensure the highest quality and performance.
-
What is the CO2 3 Click Board™?
The CO2 3 Click Board™ is a compact add-on board that allows precise and reliable indoor air quality measurements. It features the XENSIV™ PASCO2V01BUMA1 CO2 sensor module from Infineon Technologies, which utilizes photoacoustic spectroscopy technology to measure indoor air quality.