Vibra sense Click

How does it work?

Vibra Sense Click is based on the 801S, a shock sensor from Sencera. To eliminate signal noise, the sensor's output uses a pull-up configuration alongside quad 2-input NAND Schmitt Trigger, the CD4093BC from ON Semiconductor, which is necessary as the output must become a square wave. Two of its 2-input gates and the potentiometer are used to clean the noise and set the interrupt threshold. With this potentiometer, you can set the force necessary to activate the Vibra Sense Click. The sensor is extremely sensitive to movements such as a light tap or vibration. Unlike many other sensors that use a mechanical switching element, this one uses a resistive element that changes resistance with motion.

The Vibra Sense Click uses digital output over interrupt dedicated pin INT to communicate to the host MCU over a mikroBUS™ socket. In addition, this Click board™ features EN, an enable pin that lets you disable the outputs of the 801S sensor. For a visual presentation of shock detection, this Click board™ features a VIBRA LED that will light according to the vibration and the potentiometer-set threshold.

This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via an onboard jumper. 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

Pinout diagram

This table shows how the pinout on Vibra sense Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
	NC	1	AN	PWM	16	NC
Output Enable	EN	2	RST	INT	15	INT	Interrupt
	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

Vibra sense Click electrical specifications

Software Support

We provide a library for the Vibra sense Click as well as a demo application (example), developed using Mikroe compilers. The demo can run on all the main Mikroe development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager (recommended), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Vibra sense Click driver.

Key functions

• Check interrupt function.

• Reset vibra sense function.

Example Description

This is a example which demonstrates the use of Vibra sense Click board.

 void application_task ( void ) 
 { 
     if ( vibrasense_check_interrupt( &vibrasense ) ) 
     { 
         log_printf(&logger, "       TILT !!!     rn"); 
         log_printf(&logger, "--------------------rn"); 
         Delay_ms( 100 ); 
     } 
 }

The full application code, and ready to use projects can be installed directly from NECTO Studio 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.VibraSense

Additional notes and informations

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 Mikroe compilers.

mikroSDK

This 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.

For more information about mikroSDK, visit the official page.