Tuya Sandwich Voice Wi-Fi Board (VWXR2)

The Tuya Sandwich audio Wi-Fi communication board (VWXR2) helps you quickly implement various smart hardware prototypes. You can use the Tuya Sandwich audio Wi-Fi communication board (VWXR2) with other functional circuit modules or circuit boards to implement corresponding functions.

Scenarios

• The Tuya Sandwich audio Wi-Fi communication board (VWXR2) applies to many product prototypes developed by Tuya IoT custom solutions, including lighting, desk lamps, filament lamps, dimmers, lighting remote controls, power strips, switches, home appliances, exercise and health, and sensors.

• You also can implement diversified smart hardware demos with this development board.

• The common scenarios of the Tuya Sandwich audio Wi-Fi communication board are as follows:

  • Embedded systems engineers can use the board to perform preliminary embedded programming and debugging.
  • App developers can use the board to develop and debug apps.
  • Makers can use the board to quickly implement hardware demos and device control with a mobile phone.
  • IoT technology enthusiasts can use the board to learn about voice control and Wi-Fi control principle and smart device development.

Introduction to key components

The Tuya Sandwich audio Wi-Fi communication board (VWXR2) adopts the high-performance IoT voice module VWXR2 developed by Tuya Smart. The development board contains audio module VWXR2, buttons, LED indicators, UART ports, power supply, and more. For more information, see Audio Module VWXR2 Datasheet.

For more information about the design of VWXR2, see Audio Module VWXR2 Hardware Design Guide and Audio Module VWXR2 Acoustic Structure Design Reference.

I/O ports and function definitions

• CN2 and CN4: All pins of the module are led out (except SPK and MIC), which makes it convenient for you to burn firmware, debug devices, and verify functions.
• CN6: Power port.
• CN9: User serial port, which can be used to connect an MCU.
• Indicator light LED1: 5V power indicator light.
• Indicator light LED2: The audio status indicator light which supports RGB three-color dimmer PWM output.
• Button SW1: Reset button.
• Button SW2: mute and network configuration button.
• Button SW5: volume + button.
• Button SW6: volume - button.
• CN15: Used for module firmware burning and debugging, and log printing.
• CN5: single SPK port.
• CN1 and CN3: two MIC ports.
• Other I/O ports: See Audio Module VWXR2 Datasheet.

PCB

PCB of Tuya Sandwich audio Wi-Fi communication board (VWXR2):

Things to note

• The development board in this solution must be used with a power board.
• The development board in this solution needs to simultaneously use one 5V and one 3.3V power supply, and the current of the 5V power supply is greater than 500 mA.