MikroElektronika Click Boards Display OLED Switch click front

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Oled Switch Click

PID: MIKROE-2449

Weight: 29 g

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If you are building any type of human machine interface, OLED Switch click can help you keep the design simple, clear and interactive. It can be used in designing a control panel for an industrial machine… or a DIY arcade.

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An OLED built in a button

This board has a module that combines a button and a full color organic LED display, plus input/output screw terminals for connecting an external circuit (to toggle it on and off).

The mechanical button itself is nicely built, with a translucent black housing. When pressed, it gives satisfying tactile feedback.

The display, built in the button itself, can show 64 by 48 pixel images with up to 65k colors (16-bit depth).

MikroElektronika Click Boards Display OLED Switch click

Displays crisp and clear images

The display is big enough to display simple information, whether as icons or words. Small characters are legible and clear.

The most interesting feature is that the display can be programmed to change the picture when needed (for example, you can design a reprogrammable keypad that would allow users to switch from latin to cyrillic script or to chinese characters).

VisualTFT can be used to prepare the bmp images. There is a learn.mikroe.com article that explains how to to take 16 or 24 bit bmp pictures and create C arrays. The article is about RGB matrices but the same principle applies.

The board communicates with the target MCU through the mikroBUS™ SPI interface. It uses a 3.3V power supply only.

Features

NKK Switch ISC15ANP4
OLED: 64x48px; 65k colors (16-bit depth)
Long-lasting (3 million actuations minimum)
All-in-one solution reduces complexity of HMI designs
Screw terminals for connecting external electronics
3.3V power supply
SPI interface
Ready-to-use examples save development time

Resources

Click board™ Catalog

Click Boards™

Downloads

OLED Switch click example on Libstock

OLED Switch click schematic

Type	OLED
Applications	Any type of human machine interface
On-board modules	NKK Switch ISC15ANP4, OLED: 64x48px; 65k colors (16-bit depth)
Key Features	Screw terminals for connecting external electronics, All-in-one solution reduces complexity of HMI designs
Interface	GPIO,SPI
Compatibility	mikroBUS
Click board size	M (42.9 x 25.4 mm)
Input Voltage	3.3V

Features and usage notes

Hardware: a full color OLED built in a button

This board has a module that combines a button and a full color organic LED display, plus input/output screw terminals for connecting external electronics.

The mechanical button itself is nicely built, with a translucent black housing. When pressed, it gives satisfying tactile feedback.

The display, built in the button itself, can show 64 by 48 pixel images with up to 65k colors (16-bit depth).

With the screw terminals, you can toggle an external circuit on and off.

Software: frame buffering

The internal frame buffer on the OLED display holds 96x64 pixels with 2 bytes of 565 formatted color information for each. When displaying an image the size of the display, (64x48) the image will be displayed well, unless scrolled. To scroll an image without having random pixels from unused space in the internal frame buffer, load a 96x64 image onto the OLED Switch click with your desired image centered like the blue colored area in the picture below.

Programming

This code snippet takes a 565 formatted 16-bit bitmap and displays it on the OLED display, and then scrolls the image across the display.

 1 #define BIG_IMG_SIZE  12288 
 2 
 3 void main() 
 4 {
 5     //Local Declarations
 6     scroll_t scroll;               //Used for scroll settings
 7     
 8     scroll.col_horiz_shift = 0x01; //Shift left to right
 9     scroll.row_offset      = 0;    //No offset of rows
10     scroll.row_horiz_shift = 64;   //64: BIG IMAGE, 47:SMALL ( SMALL doesn't work well, because of firmware on click side )
11     scroll.row_vert_shift  = 0;    //No vertical shifting
12     scroll.interval        = 1;    //1: 10 frames between each shift
13     
14     //Setup
15     system_setup( BIG ); //Provide size of allocated space for images ( 64x48 or 96x64 )
16 
17     oled_switch_deactivate_scrolling();                                   //Scrolling must be absolutely deactivated first
18     oled_switch_scrolling_setup( scroll );                                //Next, setup scroll settings
19     oled_switch_draw_565_img( oled_switch_logo_big_bmp, BIG_IMG_SIZE );   //Draw the image to scroll
20     oled_switch_activate_scrolling();                                     //Activate scrolling on screen
21 
22     while( 1 )//Forever
23     {
24     
25     }
26 }