MIKROE-2471
19 g
BLE 3 click is a quick and simple solution if you want to add Bluetooth Low Energy to your project. It features the NINA-B1 Bluetooth 4.2 module, from u-blox.
This click also comes with an integrated antenna mounted on the PCB.
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One of the standout features of the NINA-B1 module is its real time counter functionality. This counter can be used to generate precisely timed BLE advertising events (broadcasting packets to every device around), without involving the main MCU. The RTC can be operated in standby mode as well — further lowering the already low power consumption.
BLE – also known as Bluetooth Low Enegry is designed for sensors and smart devices that send out small pieces of information in regular intervals and need to have very low power consumption. For example our Hexiwear uses BLE for wireless communication. You can combine BLE 3 with one of our sensor clicks, like the Air quality click, and get notified what the air quality of your home or office is all the time.
For really low power consumption there are different power saving modes to conserve battery life – standby mode and power off mode. The module can spend most of the time in power off mode and wake up periodically only to send small packages of data.
The ADC featured on the click can sample up to 200 kHz using different inputs as sample triggers and it supports 8/10/12-bit resolution.
For applications that require it, u-blox offers Apple iOS and Google Android connectivity.
The BLE 3 click communicates with the target board MCU through the UART, SPI and I2C interface, with the addition of 7 GPIO pins. It uses 3.3V power supply only.
Type
BT/BLE
Applications
Medical equipment and fitness applications, IoT devices, home automation, smart energy, etc.
On-board modules
NINA-B1 Bluetooth 4.2 module
Key Features
LED indicates power is on, Antenna power +10dBm, 2.4 GHz frequency band
Interface
GPIO,I2C,SPI,UART
Compatibility
mikroBUS
Click board size
M (42.9 x 25.4 mm)
Input Voltage
3.3V
Also known as Bluetooth Low Energy, BLE is intended for small smart devices like home automation sensor and fitness applications that need to have really low power consumption and long battery life. The BLE 3 click communicates with the target board MCU through the UART, SPI and I2C interface, with the addition of 7 GPIO pins. It uses 3.3V power supply only.
The NINA-B1 module has different power saving modes to conserve battery life – standby mode and power off mode. The module usually spends most of the time in power off mode (it is the primary mode) and wakes up to send small packages of data, and then powers off again. The following events can be used to bring the module out of standby-mode:
During standby mode, the module is clocked at 32 kHz reference clock, which is generated by an internal 32 kHz oscillator.
The module is fully Bluetooth qualified and provides global modular approval. The ADC can sample up to 200 kHz using different inputs as sample triggers and it supports 8/10/12 bit resolution. Any of the 8 analog inputs can be used both as single-ended inputs and as differential pairs for measuring the voltage across them. The ADC supports full 0 V to VCC input range.
The NINA-B112 modules have an integrated antenna mounted on the PCB (10.0 x 14.0 mm). The RF signal pin is not connected to any signal path. You can configure NINA-B1 modules through U-Blox S-Center toolbox software using AT commands. The s-center evaluation software is available free of charge and can be downloaded from the U-Blox website.
This table shows how the pinout on BLE 3 click ccorresponds 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 | ||
| Active-high Reset pin | RST | 2 | RST | INT | 15 | RTS | UART request to send |
| UART clear to send | CS/CTS | 3 | CS | RX | 14 | TX | |
| SPI0 SCLK | 4 | SCK | TX | 13 | RX | ||
| SPI0 MISO | 5 | MISO | SCL | 12 | SCL | ||
| SPI0 MOSI | 6 | MOSI | SDA | 11 | SDA | ||
| Power supply | +3.3V | 7 | +3.3V | +5V | 10 | NC | |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
The board also has an additional pinout with 7 GPIOs:
| Name | I/O | Description |
|---|---|---|
| IO_7 | I/O | GPIO intended for use with a push-button switch. |
| IO_16 | I/O | Analog function enabled GPIO |
| IO_17 | I/O | Analog function enabled GPIO. |
| IO_18 | I/O | Analog function enabled GPIO |
| IO_27 | I/O | Analog function enabled GPIO |
| IO_28 | I/O | NFC pin 1 |
| IO_29 | I/O | NFC pin 2 |
The demo code available on Libstock sets up the BLE 3 click to broadcast the state of pins on a desired port. A smartphone and BLE 3 can communicate when a connection is established, and the smartphone can chage the state of the pins over bluetooth low energy.
Code examples for BLE 3 click, written for MikroElektronika hardware and compilers are available on Libstock
We provide a library for the BLE 3 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Package can be downloaded/installed directly form compilers IDE(recommended way), or downloaded from our LibStock™, or found on mikroE github account.
Library Description
This library contains API for BLE 3 Click driver.
Key functions:
void ble3_cfg_setup ( ble3_cfg_t *cfg ); - Config Object Initialization function.BLE3_RETVAL ble3_init ( ble3_t *ctx, ble3_cfg_t *cfg ); - Initialization function.Examples description
This example reads and processes data from BLE 3 clicks.
void application_task ( void )
{
ble3_process( );
}
The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock™ page or mikroE GitHub accaunt.
Other mikroE Libraries used in the example:
Additional notes and informations
Depending on the development board you are using, you may need 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.
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.
For more information about mikroSDK, visit the official page.
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