IR Eclipse 2 Click

How does it work?

IR Eclipse 2 Click is based on the EE-SX1330, a transmissive photomicrosensor with a phototransistor output from OMRON. It consists of one infrared transmitter and receiver facing each other and spaced apart by a 3mm slit. The sensor activates when an object in the gap, like a piece of paper, eclipses the transmitter beam. The object intercepts the optical beam of the emitter, thus reducing the amount of the optical energy reaching the detector. Some smaller objects do not fully intercept the optical beam emitted by LED; therefore, some parts of the beam come to the detector and allow current flow from the phototransistor (considered noise).

The IR Eclipse 2 Click communicates with the host MCU using only the INT and EN pins of the mikroBUS™ socket. The EN pin provides a standard device enable feature, while the INT pin provides information to the MCU about the presence of an object in the gap and the sensor’s activity. Also, the INT LED serves as a visual indicator of the activated sensor (object detection indicator).

This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VIO SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this 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 IR Eclipse 2 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
Device Enable	EN	2	RST	INT	15	INT	Object Detection Interrupt
ID COMM	CS	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

IR Eclipse 2 Click electrical specifications

Software Support

We provide a library for the IR Eclipse 2 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 IR Eclipse 2 Click driver.

Key functions

• ireclipse2_get_state This function detecting eclipse states.

• ireclipse2_enable This function enables the transmitter of the photo-microsensor.

• ireclipse2_disable This function disables the transmitter of the photo-microsensor.

Example Description

This example demonstrates the use of the IR Eclipse 2 Click board by detecting eclipse states.

void application_task ( void )  
 { 
     ecls_state = ireclipse2_get_state( &ireclipse2 ); 
     if ( cmp_state != ecls_state ) 
     { 
         if ( IRECLIPSE2_STATE_ECLIPSE == ecls_state ) 
         { 
             log_printf( &logger, " Counter: %un", cnt ); 
             cnt++; 
         } 
         cmp_state = ecls_state; 
     } 
 }

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.IREclipse2

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.