Customize and manage your surroundings with ease and style using ISC15ANP4 and STM32F031K6
Beyond the button
Published Oct 01, 2024
Click board™
Oled Switch Click
Dev. board
Nucleo 32 with STM32F031K6 MCU
Compiler
NECTO Studio
MCU
STM32F031K6
Witness how this smart display reimagines the way we interact with our devices, offering a beautiful and intuitive solution that simplifies everyday tasks and elevates your space.
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Hardware Overview
How does it work?
OLED Switch Click is based on the ISC15ANP4, a programmable smart display from NKK Switches. The OLED display has a 64x48 pixels resolution with up to 65K colors (16-bit depth), or 256 colors in 8-bit mode, and a 180° viewing angle. The life expectancy is up to 60000 hours depending on the luminance of the display and the percentage of the pixels set to on. The display is perfect for displaying simple information, whether as icons or words. 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 switches from Latin to Cyrillic script or Chinese characters. 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 that is 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 or similar. VisualTFT can be used to prepare the BMP images. There is a learn.microe.com article that explains how to take 16 or 24-bit BMP pictures and create C arrays. The article is about RGB matrices, but the same principle applies. The mechanical button itself is nicely built, with translucent black housing. When pressed, it gives satisfying tactile feedback and has a distinct, long travel of 4.5mm. Its contacts have a 0.1A@12VDC rating to switch an external circuit over screw terminals. The internal button circuit is an SPST and is normally open. The pressure on the button itself above 100N can damage the OLED. In
addition, this Click board™ features the MAX8574, a high-efficiency LCD boost with true shutdown from Analog Devices, that serves as a main OLED drive circuit power supply obtained from the mikroBUS™ 3.3V power rail. The OLED Switch Click uses an SPI serial interface to communicate with the host MCU. In addition, the OLED can be reset over the RST pin, and a CD pin can set data to be interpreted as a Command or as Data depending on the logic state. The host MCU cannot know the push button’s state over the mikroBUS™ socket. This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. Also, it comes equipped with a library containing functions and an example code that can be used as a reference for further development.
Features overview
Development board
Nucleo 32 with STM32F031K6 MCU board provides an affordable and flexible platform for experimenting with STM32 microcontrollers in 32-pin packages. Featuring Arduino™ Nano connectivity, it allows easy expansion with specialized shields, while being mbed-enabled for seamless integration with online resources. The
board includes an on-board ST-LINK/V2-1 debugger/programmer, supporting USB reenumeration with three interfaces: Virtual Com port, mass storage, and debug port. It offers a flexible power supply through either USB VBUS or an external source. Additionally, it includes three LEDs (LD1 for USB communication, LD2 for power,
and LD3 as a user LED) and a reset push button. The STM32 Nucleo-32 board is supported by various Integrated Development Environments (IDEs) such as IAR™, Keil®, and GCC-based IDEs like AC6 SW4STM32, making it a versatile tool for developers.
Microcontroller Overview
MCU Card / MCU
Architecture
ARM Cortex-M0
MCU Memory (KB)
32
Silicon Vendor
STMicroelectronics
Pin count
32
RAM (Bytes)
4096
You complete me!
Accessories
Click Shield for Nucleo-32 is the perfect way to expand your development board's functionalities with STM32 Nucleo-32 pinout. The Click Shield for Nucleo-32 provides two mikroBUS™ sockets to add any functionality from our ever-growing range of Click boards™. We are fully stocked with everything, from sensors and WiFi transceivers to motor control and audio amplifiers. The Click Shield for Nucleo-32 is compatible with the STM32 Nucleo-32 board, providing an affordable and flexible way for users to try out new ideas and quickly create prototypes with any STM32 microcontrollers, choosing from the various combinations of performance, power consumption, and features. The STM32 Nucleo-32 boards do not require any separate probe as they integrate the ST-LINK/V2-1 debugger/programmer and come with the STM32 comprehensive software HAL library and various packaged software examples. This development platform provides users with an effortless and common way to combine the STM32 Nucleo-32 footprint compatible board with their favorite Click boards™ in their upcoming projects.
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Click board™ Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Nucleo 32 with STM32F031K6 MCU as your development board.
Track your results in real time
Application Output
1. Application Output - In Debug mode, the 'Application Output' window enables real-time data monitoring, offering direct insight into execution results. Ensure proper data display by configuring the environment correctly using the provided tutorial.
2. UART Terminal - Use the UART Terminal to monitor data transmission via a USB to UART converter, allowing direct communication between the Click board™ and your development system. Configure the baud rate and other serial settings according to your project's requirements to ensure proper functionality. For step-by-step setup instructions, refer to the provided tutorial.
3. Plot Output - The Plot feature offers a powerful way to visualize real-time sensor data, enabling trend analysis, debugging, and comparison of multiple data points. To set it up correctly, follow the provided tutorial, which includes a step-by-step example of using the Plot feature to display Click board™ readings. To use the Plot feature in your code, use the function: plot(*insert_graph_name*, variable_name);. This is a general format, and it is up to the user to replace 'insert_graph_name' with the actual graph name and 'variable_name' with the parameter to be displayed.
Software Support
Library Description
This library contains API for Oled Switch Click driver.
Key functions:
oledswitch_reg_write- This function writes to control and configuration registers on the chipoledswitch_digital_write_pwm- This function sets the digital output signal for the PWM pinoledswitch_digital_write_rst- This function sets the digital output signal for the RST pin
Open Source
Code example
The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.
/*!
* \file
* \brief OledSwitch Click example
*
* # Description
* This example showcases how to configure and use the OLED Switch click. This click is a
* combination of a button and a full color organic LED display. Displays settings are first
* loaded onto the chip and after that you can show any 64x48 pixel image on the display.
*
* The demo application is composed of two sections :
*
* ## Application Init
* This function initializes and configures the click modules. In order for the
* click to work properly, you need to configure display and power settings.
* The full initialization of the chip is done in the default_cfg(...) function.
*
* ## Application Task
* This function shows the user how to display images on the OLED screen. Every image you'd
* like to display needs to have a resolution of 64x48 and be stored in a 6144 cell array.
*
* @note
* Every pixel on the OLED screen is displayed at the time of writing to the chip (PWM 1).
* Displaying speed can be directly controled by adding delays in the for loop section of
* the draw_image(...) function.
*
* \author MikroE Team
*
*/
// ------------------------------------------------------------------- INCLUDES
#include "board.h"
#include "log.h"
#include "oledswitch.h"
#include "oledswitch_image.h"
// ------------------------------------------------------------------ VARIABLES
static oledswitch_t oledswitch;
// ------------------------------------------------------ APPLICATION FUNCTIONS
void application_init ( )
{
oledswitch_cfg_t cfg;
// Click initialization.
oledswitch_cfg_setup( &cfg );
OLEDSWITCH_MAP_MIKROBUS( cfg, MIKROBUS_1 );
oledswitch_init( &oledswitch, &cfg );
oledswitch_default_cfg( &oledswitch, OLEDSWITCH_BUFFER_SIZE_SMALL );
}
void application_task ( )
{
oledswitch_draw_image( &oledswitch, array_red, OLEDSWITCH_IMG_SIZE_NORMAL );
Delay_1sec( );
oledswitch_draw_image( &oledswitch, array_green, OLEDSWITCH_IMG_SIZE_NORMAL );
Delay_1sec( );
oledswitch_draw_image( &oledswitch, array_blue, OLEDSWITCH_IMG_SIZE_NORMAL );
Delay_1sec( );
}
void main ( )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
// ------------------------------------------------------------------------ END
