Mikroelektronika d.o.o.
SKU: MIKROE-5517CAP Touch 6 Click Board
CAP Touch 6 Click Board
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Key Features
- Low power mode while sensing proximity, automatic tuning of sense electrode, advanced on-chip digital signal processing, low power consumption, touch and proximity LED indicators, protective acrylic plexiglass layer, and more
- Based on the IQS227D - single-channel capacitive touch and proximity controller from Azoteq
- Can be used for any human-machine interface application that uses capacitive touch sensing functions
- mikroBUS: GPIO Interface
Introducing the Cap Touch 6 Click Board™ - Upgrade Your Projects with Projected Capacitive Touch
Get ready to revolutionize your applications with the Cap Touch 6 Click Board™ - a compact and user-friendly add-on board designed for seamless integration of projected capacitive touch. Featuring the IQS227D, a high-performance single-channel capacitive controller from Azoteq, complete with an internal voltage regulator and reference capacitor, you'll experience unparalleled capacitive sensing capabilities.
Proximity and Touch Outputs for Enhanced Interaction
Go beyond simple capacitive sensing with output pins for proximity, touch events, and corresponding LED indicators. The IQS227D automatically adjusts to slow, varying environmental changes using advanced filters, ensuring your applications remain responsive and accurate, no matter the conditions.
Perfect for Human-Machine Interface Applications
Whether you're designing a smart home device, a sleek touch-based control panel, or an interactive kiosk, the Cap Touch 6 Click Board™ offers unmatched reliability and precision for any human-machine interface application requiring capacitive touch sensing functions.
Supported by a mikroSDK-Compliant Library
Effortlessly develop your software with the help of a mikroSDK-compliant library featuring a range of functions that simplify the development process. The Cap Touch 6 Click Board™ comes as a fully tested product, primed for use on a system equipped with a mikroBUS™ socket.
Upgrade Your Projects Today
Don't miss out on the incredible potential of the Cap Touch 6 Click Board™. Enhance your projects with projected capacitive touch capabilities and redefine how users interact with your applications. Get started now!
How Does The Cap Touch 6 Click Board™ Work?
The Cap Touch 6 Click Board™ is based on the IQS227D, a fully integrated single-channel capacitive controller with an internal voltage regular and reference capacitor from Azoteq. As known, the capacitive touch technology works by detecting changes in capacitance on the screen or touchpad, in this case, the sensing area at the top of the frontal side of the board, when a finger or other conductive object comes into contact with it. The IQS227D is built on ProxSense® low voltage platform, ideal for battery application. It comes with dual outputs (touch and proximity outputs don't need to be configured), a low-power mode while sensing proximity, and an advanced on-chip digital signal processing.
Touch and proximity features, alongside its mikroBUS™ pins, marked TOU and POU, only used to communicate with MCU, also have their corresponding LED indicators, labelled Touch and Prox, reporting the activity of these features. If a touch/proximity event is detected on the onboard sensing pad, the state of the corresponding LED will be changed, indicating an activated channel.
In addition to pins of the mikroBUS™ socket, these functions can also be found on the unpopulated header for external uses if they are necessary for the user in some specific application. As mentioned earlier, this board contains a capacitive sensing area that is the only element on the top side of the board, allowing the protective acrylic plexiglass layer placement.
The Cap Touch 6 Click Board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper on the back side of the board. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
SPECIFICATIONS
| Type | Capacitive |
| Applications | It can be used for any human-machine interface application that uses capacitive touch-sensing functions |
| On-board modules | IQS227D - single-channel capacitive touch and proximity controller from Azoteq |
| Key Features | Low power mode while sensing proximity, automatic tuning of sense electrode, advanced on-chip digital signal processing, low power consumption, touch and proximity LED indicators, protective acrylic plexiglass layer, and more |
| Interface | GPIO |
| Compatibility | mikroBUS |
| Click board size | L (57.15 x 25.4 mm) |
| Input Voltage | 3.3V or 5V |
PINOUT DIAGRAM
This table shows how the pinout on f the Cap Touch 6 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| Touch Output | TOU | 1 | AN | PWM | 16 | POU | Proximity Output |
| NC | 2 | RST | INT | 15 | NC | ||
| NC | 3 | CS | RX | 14 | NC | ||
| NC | 4 | SCK | TX | 13 | NC | ||
| NC | 5 | MISO | SCL | 12 | NC | ||
| NC | 6 | MOSI | SDA | 11 | NC | ||
| 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 |
| LD2 | Touch | - | Touch LED Indicator |
| LD3 | Prox | - | Proximity LED Indicator |
| JP1 | VCC SEL | Left | Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V |
CAP TOUCH 6 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
Software Support
We provide a library for the Cap Touch 6 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 Cap Touch 6 Click Board™ driver.
Key functions
-
captouch6_get_tout_pinThis function returns the TOUT pin logic state. -
captouch6_get_pout_pinThis function returns the POUT pin logic state.
Example Description
This example demonstrates using the Cap Touch 6 Click Board™ by reading and displaying the touch and proximity events.
void application_task ( void )
{
static uint8_t old_touch_state = 0, old_prox_state = 0;
uint8_t touch_state = captouch6_get_tout_pin ( &captouch6 );
uint8_t prox_state = captouch6_get_pout_pin ( &captouch6 );
if ( ( old_touch_state != touch_state ) || ( old_prox_state != prox_state ) )
{
log_printf( &logger, " Touch: %srn", ( char * ) ( !touch_state ? "detected" : "idle" ) );
log_printf( &logger, " Proximity: %srnn", ( char * ) ( !prox_state ? "detected" : "idle" ) );
old_touch_state = touch_state;
old_prox_state = prox_state;
}
}
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.CapTouch6
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 Cap Touch 6 Click Board™ is supported with mikroSDK - MikroE Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
CAP Touch 6 Click Board
Frequently Asked Questions
Ask a Question-
What are some example applications for the Cap Touch 6 Click Board™?
The Cap Touch 6 Click Board™ is suitable for a wide range of applications, such as touch-sensitive keypads, control panels, display touch control, and various other capacitive touch sensing functions in human-machine interface applications.
-
Is the Cap Touch 6 Click Board™ ready for immediate use?
Yes, the Click board™ comes as a fully tested product, ready for use on a system equipped with the mikroBUS™ socket.
-
What type of library is the Cap Touch 6 Click Board™ supported by?
The board is supported by a mikroSDK-compliant library, which includes functions that simplify software development.
-
How does the IQS227D handle environmental changes?
The IQS227D automatically tracks slow varying environmental changes using various filters, ensuring reliable and accurate sensing.
-
Does the Cap Touch 6 Click Board™ include any LED indicators?
Yes, the board has output pins for proximity and touch events, along with corresponding LED indicators.
-
Which capacitive controller is featured on the Cap Touch 6 Click Board™?
The board features the IQS227D, a single-channel capacitive controller with an internal voltage regulator and reference capacitor from Azoteq.
-
What is the Cap Touch 6 Click Board™?
The Cap Touch 6 Click Board™ is a compact add-on board designed to easily integrate projected capacitive touch into users' applications. It is ideal for any human-machine interface application that uses capacitive touch sensing functions.