Control precise air and fluid movement for medical devices, smart appliances, and hydroponic systems
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Hardware Overview
How does it work?
Micro Pump Click is based on the JSB1523018, a compact powerful mini pump from TCSTec, made for airflow and fluid transfer in a wide range of applications. This miniature water and oxygen pump stands out for its exceptional performance in a small form factor, delivering an impressive flow rate of 80~130mL/min. Designed to deliver consistent and reliable performance, the JSB1523018 operates at a pressure of 80kPa, making it ideal for tasks that require a steady air supply, such as integration into smart home devices like sweeping robots. Its robust output allows it to support continuous operation while maintaining low power consumption, which is crucial for energy-efficient designs. Such high efficiency makes it perfectly suited for maintaining optimal oxygen levels in small aquatic systems, ensuring a stable and healthy environment for aquatic life. Beyond consumer electronics, the JSB1523018 finds its place in critical medical and industrial applications. Its precise and compact design makes it suitable
for use in medical devices including CPAP machines, nebulizers, and portable ventilators, where controlled airflow is essential. The pump also serves well in confined air circulation systems, hydroponic solutions, and small fish tank aeration, providing a quiet and dependable source of air or fluid movement. Additionally, it can be used in portable air pumps for inflating small objects or in air sampling equipment where lightweight, low-noise operation is necessary. The operation of the pump on the Micro Pump Click is managed by the DRV8213, a brushed DC motor driver from Texas Instruments, ensuring control of the JSB1523018 pump. This driver enables simple control through its IN1 and IN2 pins, which are compatible with a standard PWM interface, allowing users to easily adjust the motor speed and direction using pulse-width modulation signals. For added flexibility, the board includes a GAIN SEL jumper that allows users to configure the gain factor based on the required output current range, optimizing
performance for specific applications. In addition to the primary control pins, the board also uses the IP pin, which enables the integrated current regulation feature of the DRV8213. This functionality helps limit the pump current to a predefined maximum value, offering protection and improved efficiency. Moreover, the IP signal can provide real-time current feedback to the host MCU during both drive and brake/slow-decay states of the H-bridge, giving developers more insight and control over the pump's operation and enhancing the overall safety and reliability of the system. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC 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.
Features overview
Development board
Nucleo-144 with STM32F303ZE MCU board offers an accessible and adaptable avenue for users to explore new ideas and construct prototypes. It allows users to tailor their experience by selecting from a range of performance and power consumption features offered by the STM32 microcontroller. With compatible boards, the
internal or external SMPS dramatically decreases power usage in Run mode. Including the ST Zio connector, expanding ARDUINO Uno V3 connectivity, and ST morpho headers facilitate easy expansion of the Nucleo open development platform. The integrated ST-LINK debugger/programmer enhances convenience by
eliminating the need for a separate probe. Moreover, the board is accompanied by comprehensive free software libraries and examples within the STM32Cube MCU Package, further enhancing its utility and value.
Microcontroller Overview
MCU Card / MCU

Architecture
ARM Cortex-M4
MCU Memory (KB)
512
Silicon Vendor
STMicroelectronics
Pin count
144
RAM (Bytes)
81920
You complete me!
Accessories
Click Shield for Nucleo-144 comes equipped with four mikroBUS™ sockets, with one in the form of a Shuttle connector, allowing all the Click board™ devices to be interfaced with the STM32 Nucleo-144 board with no effort. This way, MIKROE allows its users to add any functionality from our ever-growing range of Click boards™, such as WiFi, GSM, GPS, Bluetooth, ZigBee, environmental sensors, LEDs, speech recognition, motor control, movement sensors, and many more. Featuring an ARM Cortex-M microcontroller, 144 pins, and Arduino™ compatibility, the STM32 Nucleo-144 board offers limitless possibilities for prototyping and creating diverse applications. These boards are controlled and powered conveniently through a USB connection to program and efficiently debug the Nucleo-144 board out of the box, with an additional USB cable connected to the USB mini port on the board. Simplify your project development with the integrated ST-Link debugger and unleash creativity using the extensive I/O options and expansion capabilities. This Click Shield also has several switches that perform functions such as selecting the logic levels of analog signals on mikroBUS™ sockets and selecting logic voltage levels of the mikroBUS™ sockets themselves. Besides, the user is offered the possibility of using any Click board™ with the help of existing bidirectional level-shifting voltage translators, regardless of whether the Click board™ operates at a 3.3V or 5V logic voltage level. Once you connect the STM32 Nucleo-144 board with our Click Shield for Nucleo-144, you can access hundreds of Click boards™, working with 3.3V or 5V logic voltage levels.
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
Micro Pump Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.
Example Description
This example demonstrates the use of the Micro Pump Click board. It initializes the Click module, calibrates the offset for accurate current measurements, and then controls the motor in different states while measuring and logging the output current in milliamps (mA).
Key functions:
micropump_cfg_setup
- Config Object Initialization function.micropump_init
- Initialization function.micropump_drive_motor
- This function drives the micro pump motor in the selected state.micropump_calib_offset
- This function calibrates the zero current offset value.micropump_get_out_current
- This function reads the current output measurement in mA.
Application Init
Initializes the logger and the Micro Pump Click driver and performs offset calibration.
Application Task
Alternates the motor's operational states between COAST and FORWARD. For each state, it logs the motor's current consumption.
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 main.c
* @brief Micro Pump Click Example.
*
* # Description
* This example demonstrates the use of the Micro Pump Click board. It initializes the Click module,
* calibrates the offset for accurate current measurements, and then controls the motor in different states
* while measuring and logging the output current in milliamps (mA).
*
* The demo application is composed of two sections:
*
* ## Application Init
* Initializes the logger and the Micro Pump Click driver and performs offset calibration.
*
* ## Application Task
* Alternates the motor's operational states between COAST and FORWARD. For each state, it logs the motor's
* current consumption.
*
* @author Stefan Filipovic
*
*/
#include "board.h"
#include "log.h"
#include "micropump.h"
static micropump_t micropump; /**< Micro Pump Click driver object. */
static log_t logger; /**< Logger object. */
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
micropump_cfg_t micropump_cfg; /**< Click config object. */
/**
* 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.
micropump_cfg_setup( µpump_cfg );
MICROPUMP_MAP_MIKROBUS( micropump_cfg, MIKROBUS_1 );
if ( ADC_ERROR == micropump_init( µpump, µpump_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( MICROPUMP_ERROR == micropump_calib_offset ( µpump ) )
{
log_error( &logger, " Offset calibration." );
for ( ; ; );
}
log_info( &logger, " Application Task " );
}
void application_task ( void )
{
float current = 0;
log_printf( &logger, " Motor state : COAST\r\n" );
micropump_drive_motor ( µpump, MICROPUMP_MOTOR_COAST );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
if ( MICROPUMP_OK == micropump_get_out_current ( µpump, ¤t ) )
{
log_printf( &logger, " Current : %.3f mA\r\n\n", current );
}
log_printf( &logger, " Motor state : FORWARD\r\n" );
micropump_drive_motor ( µpump, MICROPUMP_MOTOR_FORWARD );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
if ( MICROPUMP_OK == micropump_get_out_current ( µpump, ¤t ) )
{
log_printf( &logger, " Current : %.3f mA\r\n\n", current );
}
}
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
Additional Support
Resources
Category:Brushed