Mikroelektronika d.o.o.
ISM TX Click Board
ISM TX Click Board
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The ISM TX Click Board™ is a compact add-on board that contains an ASK and (G)FSK transmitter with a programmable SPI interface. This board features the MAX41460, a UHF sub-GHz ISM/SRD transmitter designed to transmit On-Off Keying (OOK), Amplitude-Shift Keying (ASK), Frequency-Shift Keying (FSK), and Gaussian (G)FSK (or 2GFSK) data from Maxim Integrated. The fast response time of the integrated PLL allows for frequency-hopping, spread-spectrum protocols for increased range and security. Its crystal-based architecture provides greater modulation depth, faster frequency settling, higher tolerance of the transmit frequency, and reduced temperature dependence. This Click Board™ is fitting for remote low-speed communication, such as remote keyless access, garage or gate doors control, home automation, and similar applications where this kind of communication is applicable.
The ISM TX Click Board™ is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click Board™ comes as a thoroughly tested product, ready to be used on a system equipped with the mikroBUS™ socket.
Software Support
We provide a library for the ISM TX Click on our LibStock page and a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Library Description
Library provides functions for communication with Click board, specific ones to configure the device, setting frequency, frequency deviation, baud rate, and one for sending(transmit) data.
Key Functions
void ismtx_initial_cfg ( void )- Function for initial configurationuint8_t ismtx_set_frequency ( uint32_t freq )- Function for setting transmit frequencyvoid ismtx_send_data ( uint8_t *tx_data, uint8_t tx_len )- Function for transmitting data
Example Description
The application is composed of three sections :
- System Initialization - Initialization of CS pin and LOG module
- Application Initialization - Initialization for configuration, resets the device, sets default configuration, and sets parameters for communication.
- Application Task - Sends predefined data every second.
void application_task ( )
{
ismtx_send_data( &data_send[ 0 ], 8 );
mikrobus_logWrite( " * Transmit done! * ", _LOG_LINE );
Delay_ms( 1000 );
}
Additional Functions :
- void manchester_spi_init ( void ) - Wrapper function over SPI init for sending data
- void normal_spi_init ( void ) - Wrapper function over SPI init for regular communication
The complete application code, and ready-to-use projects can be found on our LibStock page.
Other mikroE Libraries used in the example:
- SPI
- UART
Additional Notes and Information
Depending on the development board you are using, you may need USB UART Click Board™, USB UART 2 Click Board™ or RS232 Click Board™ 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 ISM 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.
ISM TX Click Board
Frequently Asked Questions
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