Mikroelektronika d.o.o.
Carte à clic VCP Monitor 4
Carte à clic VCP Monitor 4
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Overview
Le Carte à clic VCP Monitor 4™ est une carte complémentaire compacte qui représente un système de surveillance de puissance de haute précision. Cette carte comprend l'INA239, un moniteur de puissance numérique ultra-précis avec un ADC delta-sigma 16 bits spécialement conçu pour les applications de détection de courant de Texas Instruments. L'INA239 signale le courant, la tension du bus, la température et la puissance tout en effectuant les calculs nécessaires en arrière-plan. Le capteur de température intégré est précis à ±1°C pour la mesure de la température de la matrice et est également utile pour surveiller la température ambiante du système. Cette Click Board™ convient aux applications telles que les mesures industrielles, les convertisseurs DC-DC, les onduleurs, les équipements de télécommunications, les serveurs et bien d'autres.
La carte Click Board™ VCP Monitor 4 est prise en charge par une bibliothèque compatible mikroSDK, qui comprend des fonctions qui simplifient le développement logiciel. Cette carte Click Board™ est un produit entièrement testé, prêt à être utilisé sur un système équipé du socket mikroBUS™.
How Does The VCP Monitor 4 Click Board™ Work?
The VCP Monitor 4 Click Board™ as its foundation uses the INA239, a digital current sense amplifier with a 4-wire serial digital interface from Texas Instruments. It measures shunt and bus voltage and internal temperature while calculating the power necessary for accurate decision-making in precisely controlled systems. The input stage of the INA239 is designed such that the input common-mode voltage can be higher than the device supply voltage. It operates from mikroBUS™ power rails but can measure voltage and current as high as 85V, making it well suited for high-side and low-side current measurements.
Its integrated 16-bit ADC allows for selectable conversion times from 50μs to 4.12ms and sample averaging from 1x to 1024x, which further helps reduce the noise of the measured data. It also features low offset and gain-drift and low input bias current, which reduces the current consumed in both Active and Shutdown operational states. Another benefit of low bias current is that it allows the use of larger current-sense resistors (in this case, onboard R4 shunt 25MΩ resistor), thus providing accurate, current measurements in the micro-amp range. Besides, it can also measure the temperature through the integrated temperature sensor in a range from -40ºC up to +125ºC.
Its integrated 16-bit ADC allows for selectable conversion times from 50μs to 4.12ms and sample averaging from 1x to 1024x, which further helps reduce the noise of the measured data. It also features low offset and gain-drift and low input bias current, which reduces the current consumed in both Active and Shutdown operational states. Another benefit of low bias current is that it allows the use of larger current-sense resistors (in this case, onboard R4 shunt 25MΩ resistor), thus providing accurate, current measurements in the micro-amp range. Besides, it can also measure the temperature through the integrated temperature sensor in a range from -40ºC up to +125ºC.
The VCP Monitor 4 Click Board™ can operate with both 3.3V and 5V logic voltage levels selected via the VCC SEL jumper. This way, it is allowed for both 3.3V and 5V capable MCUs to use the SPI communication lines properly. However, the 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.SPECIFICATIONS
| Type | Measurements |
| Applications | Can be used for applications such as industrial measurements, DC-DC converters, power inverters, telecom equipment, servers, and many more |
| On-board modules | INA239 - ultra-precise digital power monitor with a 16-bit delta-sigma ADC specifically designed for current-sensing applications from Texas Instruments |
| Key Features | Low power consumption, high precision, high-resolution ADC, accuracy, fast alert response, programmable conversion time and averaging, and more |
| Interface | SPI |
| Compatibility | mikroBUS |
| Click board size | M (42.9 x 25.4 mm) |
| Input Voltage | 3.3V or 5V |
PINOUT DIAGRAM
This table shows how the pinout on VCP Monitor 4 Click corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| NC | 1 | AN | PWM | 16 | NC | ||
| NC | 2 | RST | INT | 15 | ALR | Alert | |
| SPI Chip Select | CS | 3 | CS | RX | 14 | NC | |
| SPI Clock | SCK | 4 | SCK | TX | 13 | NC | |
| SPI Data OUT | SDO | 5 | MISO | SCL | 12 | NC | |
| SPI Data IN | SDI | 6 | MOSI | SDA | 11 | NC | |
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | 5V | Power Supply |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
ONBOARD SETTINGS AND INDICATORS
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| LD2 | ALERT | - | Alert LED Indicator |
| JP1 | VCC SEL | Left | Logic Level Voltage Selection 3V3/5V: Left position 3V3, Right position 5V |
VCP MONITOR 4 CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
| Common-mode Input Range | 0 | - | 85 | V |
| ADC Resolution | - | 16 | - | bits |
| Operating Temperature Range | -40 | +25 | +125 | °C |
Software Support
We provide a library for the VCP Monitor 4 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
The package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe GitHub account.
Library Description
This library contains an API for VCP Monitor 4 Click driver.
Key Functions
vcpmonitor4_cfg_setup- Config Object Initialization function.vcpmonitor4_init- Initialization function.vcpmonitor4_default_cfg- Click Default Configuration function.
Example Description
This example application showcases the ability of Click board to be configured for different readings and reads temperature, voltage, current and power.
The demo application is composed of two sections :
void application_task ( void )
{
float read_data;
vcpmonitor4_get_temperature( &vcpmonitor4, &read_data );
log_printf( &logger, " > Temperature:t%.2f rn", read_data );
vcpmonitor4_get_vbus( &vcpmonitor4, &read_data );
log_printf( &logger, " > Vbus[V]:t%.2f rn", read_data );
vcpmonitor4_get_vshunt( &vcpmonitor4, &read_data );
log_printf( &logger, " > Vshunt[mV]:t%.2f rn", read_data );
vcpmonitor4_get_current( &vcpmonitor4, &read_data );
log_printf( &logger, " > Current[A]:t%.2f rn", read_data );
vcpmonitor4_get_power( &vcpmonitor4, &read_data );
log_printf( &logger, " > Power[W]:t%.2f rn", read_data );
log_printf( &logger, "*************************rn" );
Delay_ms( 500 );
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
Other Mikroe Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.VCPMonitor4
Additional Notes and Information
Depending on the development board you are using, you may need a USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.
MIKROSDK
This Click board™ is supported with mikroSDK - MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
Software Support
We provide a library for the VCP Monitor 4 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
The package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe GitHub account.
Library Description
This library contains an API for VCP Monitor 4 Click driver.
Key Functions
vcpmonitor4_cfg_setup- Config Object Initialization function.vcpmonitor4_init- Initialization function.vcpmonitor4_default_cfg- Click Default Configuration function.
Example Description
This example application showcases the ability of Click board to be configured for different readings and reads temperature, voltage, current and power.
The demo application is composed of two sections :
void application_task ( void )
{
float read_data;
vcpmonitor4_get_temperature( &vcpmonitor4, &read_data );
log_printf( &logger, " > Temperature:t%.2f rn", read_data );
vcpmonitor4_get_vbus( &vcpmonitor4, &read_data );
log_printf( &logger, " > Vbus[V]:t%.2f rn", read_data );
vcpmonitor4_get_vshunt( &vcpmonitor4, &read_data );
log_printf( &logger, " > Vshunt[mV]:t%.2f rn", read_data );
vcpmonitor4_get_current( &vcpmonitor4, &read_data );
log_printf( &logger, " > Current[A]:t%.2f rn", read_data );
vcpmonitor4_get_power( &vcpmonitor4, &read_data );
log_printf( &logger, " > Power[W]:t%.2f rn", read_data );
log_printf( &logger, "*************************rn" );
Delay_ms( 500 );
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.
Other Mikroe Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.VCPMonitor4
Additional Notes and Information
Depending on the development board you are using, you may need a USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.
MIKROSDK
This Click board™ is supported with mikroSDK - MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
Frequently Asked Questions
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