The SpeakUp 3 Click Board™ is based on the VC-02, an offline voice recognition AI module from Ai-Thinker Technology, characterized by high reliability and robust versatility. The VC-02 module uses an integrated voice chip US516P6 from Unisound, which continuously optimizes and innovates algorithms in speech recognition technology. The offline recognition algorithm is deeply integrated with the chip architecture, providing customers with an ultra-low-cost offline voice recognition solution. This board can be widely and quickly applied to all intelligent small household appliances and products requiring voice control.
The US516P6 chip uses a 32-bit RSIC architecture core, running at 240MHz, and incorporates a DSP instruction set specifically for signal processing and speech recognition, an FPU arithmetic unit that supports floating-point operations, and an FFT accelerator (support 1024-point complex FFT/IFFT operations, or 2048-point real FFT/IFFT operations). What makes this module unique are features like offline identification of 150 local instructions and self-learning of wake-up words, RTOS lightweight system, 90% recognition rate in a far field distance from 1 up to 5m, firmware update feature, as well as the selection of the communication method with the module.
The SpeakUp 3 Click Board™ comes with a configurable host interface allowing communication with MCU using the chosen interface. The VC-02 can communicate with MCU using the UART interface, a default communication interface with commonly used UART RX and TX pins, and a default baud rate of 115,200bps. Users can also use other interfaces, such as SPI and I2C, to configure the module and write the library by themselves.
Besides, at the centre of the SpeakUp 3 Click, an additional unpopulated header offers full support for debugging and programming capabilities. With this header, the user can use a JTAG interface, in addition to the UART interface, for programming and debugging available through the JTAG interface pins (TCK and TMS). A special addition to this Click board™ are connectors, marked as MIC and SPK, for an analogue omnidirectional microphone and 8Ω 2W cavity speaker from Shenzhen Anxinke Technology. These parts can be found in the same package as the Click board or can be acquired as a solo version in our shop.
The SpeakUp 3 Click Board™ can only operate with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using 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.
| Type | Speech recognition |
| Applications | It can be used for offline speech recognition suitable for all kinds of smart small household appliances, toys, lamps, and other products that need voice control |
| On-board modules | VC-02 - offline voice recognition AI module from Ai-Thinker Technology |
| Key Features | Pure offline speech recognition module, high reliability, robust versatility, widely applied to smart home, offline identification of 150 local instructions, RTOS lightweight szstem, selectable communication interface, low power consumption, and more |
| Interface | I2C,SPI,UART |
| Compatibility | mikroBUS |
| Click board size | L (57.15 x 25.4 mm) |
| Input Voltage | 3.3V,5V |
This table shows how the pinout of the SpeakUp 3 Click Board™ 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 | NC | ||
| NC | 3 | CS | RX | 14 | TX | UART TX | |
| SPI Clock | SCK | 4 | SCK | TX | 13 | RX | UART RX |
| SPI Data OUT | SDO | 5 | MISO | SCL | 12 | SCL | I2C Clock |
| SPI Data IN | SDI | 6 | MOSI | SDA | 11 | SDA | I2C Data |
| Power Supply | 3.3V | 7 | 3.3V | 5V | 10 | 5V | Power Supply |
| Ground | GND | 8 | GND | GND | 9 | GND | Ground |
| Label | Name | Default | Description |
|---|---|---|---|
| LD1 | PWR | - | Power LED Indicator |
| J1 | JTAG | Unpopulated | JTAG Debug Header |
| Description | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.3 | - | 5 | V |
| Data Rate | - | - | 3 | Mbps |
| Flash Memory Size | - | 2 | MB | |
| SRAM Memory Size | - | - | 242 | kB |
We provide a library for the SpeakUp 3 Click Board™ and a demo application (example), developed using MikroE compilers. The demo can run on all the main MikroE development boards.
The package can be downloaded/installed directly from NECTO Studio The package Manager(recommended), downloaded from our LibStock™ or found on the MikroE Github account.
Library Description
This library contains API for the SpeakUp 3 Click Board™ driver.
Key functions
speakup3_generic_read This function reads the desired number of data bytes by using the UART serial interface.
speakup3_wait_for_reply This function waits up to @b wait_ms for a reply to the voice command.
Example Description
This example demonstrates the use of the SpeakUp 3 Click Board™ by reading and displaying the voice commands reply messages.
void application_task ( void )
{
uint8_t reply_ins;
if ( SPEAKUP3_OK == speakup3_wait_for_reply ( &speakup3, &reply_ins, 1000 ) )
{
speakup3_display_reply ( reply_ins );
}
}
The complete application code and ready-to-use projects can be installed directly from NECTO Studio. The package Manager (recommended) is downloaded from our LibStock™ or found on the MikroE Github account.
Other MikroE Libraries used in the example:
Additional Notes and Information
Depending on the development board you are using, you may need USB UART Click Board™, 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. UART terminal is available in all MikroE compilers.
The SpeakUp 3 Click Board™ is supported with mikroSDK - MikroE 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.
- attachments: [{"download_file":[{"download_file":"peakUp 3 Click Board™ Schematic"}],"download_filetype":[{"download_filetype":"pdf"}]},{"download_file":[{"download_file":"Ai-Thinker Technology VC-02 Speech Recognition Module Datasheet"}],"download_filetype":[{"download_filetype":"pdf"}]}] - manufacturer: Mikroelektronika d.o.o. - warranty: 12 months - backorder_label: If no stock shown above, check availability - device_vendor: Ai-thinker technology co. ltd - device_type: VC-02 - warranty: 12 months - brand: MikroE - manufacturer: Mikroelektronika d.o.o. - target_keyword: SpeakUp 3 Click Board - brands: gid://shopify/Metaobject/56256004319 - breadcrumbs: ["gid://shopify/Collection/447955239135","gid://shopify/Collection/241680580797","gid://shopify/Collection/241544298685"] - mpn: MIKROE-5420 - customhs_code: 847330 - detailed_description: {"type":"root","children":[{"type":"heading","level":3,"children":[{"type":"text","value":"How Does The SpeakUp 3 Click Board™ Work?"}]},{"type":"paragraph","children":[{"type":"text","value":"The "},{"type":"text","value":"SpeakUp 3 Click Board™","bold":true,"italic":true},{"type":"text","value":" is based on the VC-02, an offline voice recognition AI module from Ai-Thinker Technology, characterized by high reliability and robust versatility. The VC-02 module uses an integrated voice chip US516P6 from Unisound, which continuously optimizes and innovates algorithms in speech recognition technology. The offline recognition algorithm is deeply integrated with the chip architecture, providing customers with an ultra-low-cost offline voice recognition solution. This board can be widely and quickly applied to all intelligent small household appliances and products requiring voice control."}]},{"type":"paragraph","children":[{"type":"text","value":""}]},{"type":"paragraph","children":[{"type":"text","value":"The US516P6 chip uses a 32-bit RSIC architecture core, running at 240MHz, and incorporates a DSP instruction set specifically for signal processing and speech recognition, an FPU arithmetic unit that supports floating-point operations, and an FFT accelerator (support 1024-point complex FFT/IFFT operations, or 2048-point real FFT/IFFT operations). What makes this module unique are features like offline identification of 150 local instructions and self-learning of wake-up words, RTOS lightweight system, 90% recognition rate in a far field distance from 1 up to 5m, firmware update feature, as well as the selection of the communication method with the module."}]},{"type":"paragraph","children":[{"type":"text","value":"The "},{"type":"text","value":"SpeakUp 3 Click Board™","bold":true},{"type":"text","value":" comes with a configurable host interface allowing communication with MCU using the chosen interface. The VC-02 can communicate with MCU using the UART interface, a default communication interface with commonly used UART RX and TX pins, and a default baud rate of 115,200bps. Users can also use other interfaces, such as SPI and I2C, to configure the module and write the library by themselves."}]},{"type":"paragraph","children":[{"type":"text","value":"Besides, at the centre of the SpeakUp 3 Click, an additional unpopulated header offers full support for debugging and programming capabilities. With this header, the user can use a JTAG interface, in addition to the UART interface, for programming and debugging available through the JTAG interface pins (TCK and TMS). A special addition to this Click board™ are connectors, marked as MIC and SPK, for an analogue omnidirectional microphone and 8Ω 2W cavity speaker from Shenzhen Anxinke Technology. These parts can be found in the same package as the Click board or can be acquired as a solo version in our shop."}]},{"type":"paragraph","children":[{"type":"text","value":"The "},{"type":"text","value":"SpeakUp 3 Click Board™","bold":true},{"type":"text","value":" can only operate with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using 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."}]},{"type":"heading","level":3,"children":[{"type":"text","value":"SPECIFICATIONS"}]},{"type":"paragraph","children":[{"type":"text","value":"Type\nSpeech recognition\nApplications\nIt can be used for offline speech recognition suitable for all kinds of smart small household appliances, toys, lamps, and other products that need voice control\nOn-board modules\nVC-02 - offline voice recognition AI module from Ai-Thinker Technology\nKey Features\nPure offline speech recognition module, high reliability, robust versatility, widely applied to smart home, offline identification of 150 local instructions, RTOS lightweight szstem, selectable communication interface, low power consumption, and more\nInterface\nI2C,SPI,UART\nCompatibility\nmikroBUS\nClick board size\nL (57.15 x 25.4 mm)\nInput Voltage\n3.3V,5V"}]},{"type":"heading","level":3,"children":[{"type":"text","value":"PINOUT DIAGRAM"}]},{"type":"paragraph","children":[{"type":"text","value":"This table shows how the pinout of the "},{"type":"text","value":"SpeakUp 3 Click Board™ ","bold":true},{"type":"text","value":"corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns)."}]},{"type":"paragraph","children":[{"type":"text","value":"Notes\nPin\nPin\nNotes\nNC\n1\nAN\nPWM\n16\nNC\nNC\n2\nRST\nINT\n15\nNC\nNC\n3\nCS\nRX\n14\nTX\nUART TX\nSPI Clock\nSCK\n4\nSCK\nTX\n13\nRX\nUART RX\nSPI Data OUT\nSDO\n5\nMISO\nSCL\n12\nSCL\nI2C Clock\nSPI Data IN\nSDI\n6\nMOSI\nSDA\n11\nSDA\nI2C Data\nPower Supply\n3.3V\n7\n3.3V\n5V\n10\n5V\nPower Supply\nGround\nGND\n8\nGND\nGND\n9\nGND\nGround"}]},{"type":"heading","level":3,"children":[{"type":"text","value":"ONBOARD SETTINGS AND INDICATORS"}]},{"type":"paragraph","children":[{"type":"text","value":"Label\nName\nDefault\nDescription\nLD1\nPWR\n-\nPower LED Indicator\nJ1\nJTAG\nUnpopulated\nJTAG Debug Header"}]},{"type":"heading","level":3,"children":[{"type":"text","value":"SPEAKUP 3 CLICK ELECTRICAL SPECIFICATIONS"}]},{"type":"paragraph","children":[{"type":"text","value":"Description\nMin\nTyp\nMax\nUnit\nSupply Voltage\n3.3\n-\n5\nV\nData Rate\n-\n-\n3\nMbps\nFlash Memory Size\n-\n2\nMB\nSRAM Memory Size\n-\n-\n242\nkB"}]},{"type":"heading","level":3,"children":[{"type":"text","value":" "}]}]} - summary:The SpeakUp 3 Click Board™ is a compact add-on board providing an offline speech recognition solution. This board features the VC-02, a low-cost pure offline speech recognition module developed by Ai-Thinker Technology. The VC-02 module uses an integrated voice chip US516P6 based on a 32-bit RSIC architecture core, a DSP instruction set for signal processing and speech recognition, an FPU arithmetic unit, and an FFT accelerator. The VC-02 supports offline identification of 150 local instructions, RTOS lightweight system, firmware update feature, as well as the selection of the communication method with the module. This Click board™ provides customers with offline speech recognition suitable for intelligent small household appliances, toys, lamps, and other products that need voice control.
The SpeakUp 3 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.