FLICKER Click

How does it work?

Flicker Click is based on the G6D-ASI, a power PCB relay from OMRON. It has a long service life with up to 300.000 operations at maximum rated loads. Its contact resistance is 100mΩ, with 5ms of release time, and it is designed to withstand 500VDC. Its coil is powered by 5V from the mikroBUS™ socket. The load can be connected to the relay over the onboard screw terminal and isolated from the board. Remember not to touch the board while the external power supply is on; the Flicker Click has exposed pins/pads.

Thanks to the onboard NE556, a dual precision timer from Texas Instruments, and two onboard 500K potentiometers, you can easily set the on/off periods. You will need a fine screwdriver to set the desired position of the potentiometers. A stopwatch can measure the ON/OFF periods if you need precise time. This way, you can set different or the same periods for both on and off states. The onboard LED stands for the visual presentation of the status of the relay. The Flicker Click uses a FON pin of the mikroBUS™ socket to communicate with the host MCU. Over this pin, you can turn the NE556 ON and OFF.

This Click board™ can only be operated with a 5V logic voltage level. 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

Pinout diagram

This table shows how the pinout on FLICKER 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
NE556 Enable	FON	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
	NC	7	3.3V	5V	10	5V	Power Supply
Ground	GND	8	GND	GND	9	GND	Ground

Onboard settings and indicators

FLICKER Click electrical specifications

Software Support

We provide a library for the Flicker 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 Flicker Click driver.

Key functions

• Flicker engage function.

Example Description

This application simple solution if you need to turn a device on and off at specific time intervals.

 void application_task ( void ) 
 { 
     log_printf( &logger, " *Flicker on!* r/n/" ); 
     flicker_engage( &flicker ); 
 }

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.Flicker

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.