Efficiently manage the power supply for electronic devices that require a voltage different from that provided by a single AA or AAA battery
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Hardware Overview
How does it work?
MIC23099 Click is based on the MIC23099, a single AA/AAA cell step-down/step-up regulator with battery monitoring from Microchip. This Click is designed to run on a 3.3V power supply. It communicates with the target microcontroller over the following pins on the mikroBUS™ line: CS, INT. MIC23099 Click has three screw terminals (Buck 1V, GND, and Boost 3V3) which are outputs
for connecting some external consumers. The low-battery level is indicated by an onboard STAT LED. The MIC23099 is not a battery charger but needs a battery to work properly. The battery is not included. The MIC23099 is a high-efficiency, low-noise, dual output, integrated power management solution for single-cell alkaline or NiMH battery applications. Both converters are
designed to operate with a minimum switching frequency of 80 kHz for the buck and 100 kHz for the boost to minimize switching artifacts in the audio band. The high-current boost has a maximum switching frequency of 1 MHz, minimizing the solution footprint. The MIC23099 incorporates both battery management functions and fault protection.
Features overview
Development board
Kinetis Clicker is a compact starter development board that brings the flexibility of add-on Click boards™ to your favorite microcontroller, making it a perfect starter kit for implementing your ideas. It comes with an onboard 32-bit ARM Cortex-M4 microcontroller, the MK22FN512VLH12 from NXP Semiconductor, a USB connector, LED indicators, buttons, a mikroProg connector, and a header for interfacing with external electronics. Thanks to its compact design with clear and easy-recognizable silkscreen markings, it provides a fluid and immersive working experience, allowing access
anywhere and under any circumstances. Each part of the Kinetis Clicker development kit contains the components necessary for the most efficient operation of the same board. In addition to the possibility of choosing the Kinetis Clicker programming method, using USB HID mikroBootloader, or through an external mikroProg connector for Kinetis programmer, the Clicker board also includes a clean and regulated power supply module for the development kit. The USB-MiniAB connection provides up to 500mA of current, which is more than enough to operate all
onboard and additional modules. All communication methods that mikroBUS™ itself supports are on this board, including the well-established mikroBUS™ socket, reset button, and several buttons and LED indicators. Kinetis Clicker is an integral part of the Mikroe ecosystem, allowing you to create a new application in minutes. Natively supported by Mikroe software tools, it covers many aspects of prototyping thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.
Microcontroller Overview
MCU Card / MCU

Architecture
ARM Cortex-M4
MCU Memory (KB)
512
Silicon Vendor
NXP
Pin count
64
RAM (Bytes)
131072
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 MIC23099 Click driver.
Key functions:
mic23099_default_cfg
- This function executes default configuration for MIC23099 Clickmic23099_check_power_good
- This function checks the state of Power Good output 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 MIC23099 Click example
*
* # Description
* MIC23099 click represent single AA/AAA cell step-down/step-up regulator
* with battery monitoring.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Application Init performs Logger and Click initialization.
*
* ## Application Task
* This example demonstrates the use of MIC23099 Click board by checking
* the state of power good pin and sends note via UART Terminal
* if the state is low.
*
* \author Mihajlo Djordjevic
*
*/
// ------------------------------------------------------------------- INCLUDES
#include "board.h"
#include "log.h"
#include "mic23099.h"
// ------------------------------------------------------------------ VARIABLES
static mic23099_t mic23099;
static log_t logger;
static uint8_t new_stat;
static uint8_t old_stat;
// ------------------------------------------------------- ADDITIONAL FUNCTIONS
// ------------------------------------------------------ APPLICATION FUNCTIONS
void application_init ( void )
{
log_cfg_t log_cfg;
mic23099_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_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, " Application Init\r\n" );
Delay_ms ( 1000 );
// Click initialization.
mic23099_cfg_setup( &cfg );
MIC23099_MAP_MIKROBUS( cfg, MIKROBUS_1 );
mic23099_init( &mic23099, &cfg );
log_printf( &logger, "--------------------------\r\n" );
log_printf( &logger, " ---- MIC23099 Click ---- \r\n" );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
mic23099_default_cfg( &mic23099 );
Delay_ms ( 1000 );
new_stat = MIC23099_DISABLE;
old_stat = MIC23099_ENABLE;
log_printf( &logger, " -- Initialization done --\r\n" );
log_printf( &logger, "--------------------------\r\n" );
Delay_ms ( 1000 );
}
void application_task ( void )
{
new_stat = mic23099_check_power_good( &mic23099 );
if ( new_stat == MIC23099_ENABLE && old_stat == MIC23099_DISABLE )
{
old_stat = MIC23099_ENABLE;
}
if ( new_stat == MIC23099_DISABLE && old_stat == MIC23099_ENABLE )
{
log_printf( &logger, " Change battery and reset. \r\n" );
log_printf( &logger, "------------------------------\r\n" );
old_stat = MIC23099_DISABLE;
}
}
void main ( void )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
// ------------------------------------------------------------------------ END