Control devices or systems by moving a knob in different directions
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Hardware Overview
How does it work?
Joystick Click is based on the AS5013 and N50P105, a miniature magnetic joystick module, and a complete hall sensor IC from ams AG. The N50P105 represents a smart navigation key concept based on contactless magnetic movement detection. That's precisely why this Click board™ is characterized by high reliability due to magnetic contact-less sensing. On the other hand, the two-dimensional linear encoder AS5013, mounted into the joystick, directly provides the X and Y coordinate through an I2C interface, thus forming a high-quality joystick. The AS5013 includes five integrated Hall sensing elements for detecting up to
±2mm lateral displacement, high-resolution ADC, XY coordinate, and motion detection engine combined with a smart power management controller. The X and Y positions coordinate, and magnetic field information for each Hall sensor element is transmitted over a 2-wire I2C compliant interface to the host MCU with a maximum clock frequency of 3.4MHz. Also, the AS5013 allows choosing the least significant bit (LSB) of its I2C slave address using the SMD jumper labeled I2C ADD. Also, an additional feature of this board represents an integrated mechanical push button built into the N50P105 joystick providing a "Select"
function that can be digitally tracked via the CS pin on the mikroBUS™ socket marked as TST. Alongside its interrupt feature routed to the INT pin of the mikroBUS™ socket, the AS5013 also provides an active-low Reset function routed to the RST pin on the mikroBUS™ socket. This Click board™ can only be operated with a 3.3V 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.
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
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 Joystick Click driver.
Key functions:
joystick_get_position
- Get joystick position functionjoystick_press_button
- Get state of Joystick button functionjoystick_soft_reset
- General soft reset function
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 Joystick Click example
*
* # Description
* This application configures and enables use of the joystick.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initialization driver enables - device,
* sets default configuration and starts write log.
*
* ## Application Task
* (code snippet) This is a example which demonstrates the use of Joystick Click board.
* Joystick Click communicates with register via I2C by write and read from register,
* read joystick position and press button state.
* Results are being sent to the Usart Terminal where you can track their changes.
* All data logs on usb uart when the sensor is triggered.
*
*
* \author MikroE Team
*
*/
// ------------------------------------------------------------------- INCLUDES
#include "board.h"
#include "log.h"
#include "joystick.h"
// ------------------------------------------------------------------ VARIABLES
static joystick_t joystick;
static log_t logger;
uint8_t position;
uint8_t button_state;
uint8_t position_old = 1;
uint8_t button_state_old = 1;
// ------------------------------------------------------ APPLICATION FUNCTIONS
void application_init ( void )
{
log_cfg_t log_cfg;
joystick_cfg_t cfg;
/**
* Logger initialization.
* Default baud rate: 115200
* Default log level: LOG_LEVEL_DEBUG
* @note If USB_UART_RX and USB_UART_TX
* are defined as HAL_PIN_NC, you will
* need to define them manually for log to work.
* See @b LOG_MAP_USB_UART macro definition for detailed explanation.
*/
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, "---- Application Init ----" );
// Click initialization.
joystick_cfg_setup( &cfg );
JOYSTCIK_MAP_MIKROBUS( cfg, MIKROBUS_1 );
joystick_init( &joystick, &cfg );
Delay_ms ( 100 );
joystick_default_cfg( &joystick );
log_printf( &logger, "*********************\r\n" );
log_printf( &logger, " Configuration \r\n" );
log_printf( &logger, "*********************\r\n" );
log_printf( &logger, " Joystick Click \r\n" );
log_printf( &logger, "*********************\r\n" );
Delay_ms ( 100 );
}
void application_task ( void )
{
// Task implementation.
button_state = joystick_press_button( &joystick );
position = joystick_get_position( &joystick );
Delay_ms ( 10 );
if ( ( button_state == 1 ) && ( button_state_old == 0 ) )
{
button_state_old = 1;
log_printf( &logger, " Button is pressed \r\n" );
log_printf( &logger, "*********************\r\n" );
}
if ( ( button_state == 0 ) && ( button_state_old == 1 ) )
{
button_state_old = 0;
}
if ( position_old != position )
{
switch ( position )
{
case 0 :
{
log_printf( &logger," Start position \r\n" );
break;
}
case 1 :
{
log_printf( &logger, " Top \r\n" );
break;
}
case 2 :
{
log_printf( &logger, " Top-Right \r\n" );
break;
}
case 3 :
{
log_printf( &logger, " Right \r\n" );
break;
}
case 4 :
{
log_printf( &logger, " Bottom-Right \r\n" );
break;
}
case 5 :
{
log_printf( &logger, " Bottom \r\n" );
break;
}
case 6 :
{
log_printf( &logger, " Bottom-Left \r\n" );
break;
}
case 7 :
{
log_printf( &logger, " Left \r\n" );
break;
}
case 8 :
{
log_printf( &logger, " Top-Left \r\n" );
break;
}
}
log_printf( &logger, "*********************\r\n" );
position_old = position;
Delay_ms ( 100 );
}
}
int main ( void )
{
/* Do not remove this line or clock might not be set correctly. */
#ifdef PREINIT_SUPPORTED
preinit();
#endif
application_init( );
for ( ; ; )
{
application_task( );
}
return 0;
}
// ------------------------------------------------------------------------ END