Mikroelektronika d.o.o.
SKU: MIKROE-4668BLE Tx Click Board
BLE Tx Click Board
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The BLE Tx Click Board™ is a compact add-on board that contains a low-energy Bluetooth transmitter. This board features the AK1595, a Bluetooth 5.2 transmitter with incorporated proprietary algorithm software from AKM Semiconductor. The AK1595 transmitter simplifies wireless connectivity to a system with no need to develop complicated, proprietary microcontroller code. Bluetooth Low Energy compliant advertising transmission can be achieved by simply configuring the transmission power, data, and transmission start-trigger via the UART or I2C interface.
The BLE Tx Click Board™ is suitable for general data transmission applications such as thermometers, blood pressure monitors, weight scales, toys, pet supplies, IoT sensor nodes, and more.
How Does The BLE Tx Click Board™ Work?
The BLE Tx Click Board™ as its foundation uses the AK1595, a low-power Bluetooth 5.2 transmitter from AKM Semiconductor. The AK1595 incorporates proprietary algorithm software and can achieve Bluetooth Low Energy transmitter (BLE TX) functionality without a particular development environment and programming required for conventional Bluetooth SoCs. The BLE function can be realized by simply setting the data to be transmitted to the built-in register, making it ideal for applications that add the BLE function to existing microcomputers.
The AK1595 has high-speed responsiveness that starts advertising transmission within 3ms from the Power-Down state. This fact allows the power consumption between transmissions to be kept Standby at a low power consumption of 15nA typical by controlling BLE advertising transmission, which is intermittent transmission, to be in the whole Power-Down state. Also, it supports 1Mbps GFSK +/- modulation, where the modulation clock is generated from a 32MHz onboard clock generator.
The BLE Tx Click Board™ provides the possibility of using both UART and I2C interfaces. The AK1595 configures its selected interface via three GPIO pins labelled as U/I, S1, and S0 routed on the CS, AN, and PWM pins of the mikroBUS™ socket. In addition to the I/O pin on the mikroBUS™ socket, which activates a particular serial communication based on the set logical level, this Click board™ also has two jumpers intended for the hardware interface selection itself. The choice can be made by positioning SMD jumpers labelled as COMM SEL to an appropriate position. Note that all the jumpers' positions must be on the same side, or else the Click board™ may become unresponsive.
When the UART interface is selected, the UART controller block is initialized when the S1 pin detects low logic state for more than 1μs. Also, by setting a specific logic level on pin S0, the user can set the baud rate of the UART communication itself (set S0 to a low logic state for 9600bps or S0 to a high logic state for 115200bps). The I2C interface of AK1595 supports the Standard with a clock frequency up to 100kHz and the Fast Mode up to 400kHz. Also, this Click board™ has a Reset pin routed to the RST pin on the mikroBUS™ socket, which holds registers in their default states until the RST pin is set to a logic low state.
The BLE Tx Click Board™ possesses a miniature coaxial N.FL series antenna connector which in combination with IPEX-SMA cable allows connecting the appropriate antenna, such as WIFI Rubber Antenna 2.4GHz right angle SMA or WIFI Rubber Antenna for improved range and received signal strength.
The BLE Tx Click Board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before use with 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.
SPECIFICATIONS
| Type | BT/BLE |
| Applications | The BLE Tx Click Board™ can be used for general data transmission applications such as thermometers, blood pressure monitors, weight scales, toys, pet supplies, IoT sensor nodes, and more |
| On-board modules | AK1595 - low power Bluetooth 5.2 transmitter with incorporated proprietary algorithm software from AKM Semiconductor |
| Key Features | Low power consumption, supports BLE 5.2 transmitter functionality, high-speed responsiveness, UART/I2C interface, selectable UART baud rate, and more |
| Interface | I2C, UART |
| Compatibility | mikroBUS |
| Click board size | S (28.6 x 25.4 mm) |
| Input Voltage | 3.3V |
PINOUT DIAGRAM
This table shows how the pinout for the BLE Tx Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).
| Notes | Pin |  |
Pin | Notes | |||
|---|---|---|---|---|---|---|---|
| UART Initialization | S1 | 1 | AN | PWM | 16 | S0 | UART Baud Rate Selection |
| Reset | RST | 2 | RST | INT | 15 | NC | |
| Serial Communication Activation | U/I | 3 | CS | RX | 14 | TX | UART TX |
| NC | 4 | SCK | TX | 13 | RX | UART RX | |
| NC | 5 | MISO | SCL | 12 | SCL | I2C Clock | |
| NC | 6 | MOSI | SDA | 11 | SDA | I2C Data | |
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | NC | |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
ONBOARD SETTINGS AND INDICATORS
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| JP1-JP2 | COMM SEL | Left | Communication Interface Selection I2C/UART: Left position I2C, Right position UART |
BLE TX CLICK ELECTRICAL SPECIFICATIONS
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | - | 3.3 | - | V |
| Operating Frequency Range 1 | - | 2402 | - | MHz |
| Operating Frequency Range 2 | - | 2426 | - | MHz |
| Operating Frequency Range 3 | - | 2480 | - | MHz |
| Operating Temperature Range | -40 | +25 | +85 | °C |
Software Support
We provide a library for the BLE Tx Click Board™ 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), downloaded from our LibStock™ or found on the mikroE Github account.
Library Description
This library contains an API for the BLE Tx Click Board™ driver.
Key Functions
bletx_cfg_setup- Config Object Initialization function.bletx_init- Initialization function.bletx_default_cfg- Click the Default Configuration function.
Example Description
This library contains an API for the BLE Tx Click Board™ driver. This example processes data fromBLE Tx Click Board™. BLE TX Click Bluetooth® Low Energy compliant advertising transmission can be achieved by simply configuring the transmission power, data, and transmission-start trigger.
The demo application is composed of two sections :
void application_task ( void ) {
log_printf( &logger, ">>>tStart Advertising rn" );
bletx_start_advertising( &bletx );
Delay_ms( 10000 );
log_printf( &logger, ">>>tStop Advertising rn" );
bletx_stop_advertising( &bletx );
Delay_ms( 10000 );
}
The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager (recommended), downloaded from our LibStock™ or found on mikroE Github account.
Other mikroE Libraries used in the example:
- MikroSDK.Board
- MikroSDK.Log
- Click.BleTx
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
The BLE Tx 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.
BLE Tx Click Board
Frequently Asked Questions
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