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Tuya IoT Development Platform

Tuya Sandwich Wi-Fi SOC Board (WB3S)

Last Updated on : 2022-10-26 06:59:32download

The Tuya Sandwich Wi-Fi SoC master control board (WB3S) helps you quickly implement various smart hardware prototypes. You can use the Tuya Sandwich Wi-Fi SoC master control board (WB3S) with other functional circuit modules or circuit boards to implement corresponding functions.

Tuya Sandwich Wi-Fi SOC Board (WB3S)

Scenarios

  • The Tuya Sandwich Wi-Fi SoC master control board (WB3S) applies to many prototypes developed by Tuya IoT custom solutions, including sockets, power strips, switches, and light products.

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

  • The common scenarios of the Tuya Sandwich Wi-Fi SoC master control 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 the mobile phone.
    • IoT technology enthusiasts can use the board to learn about the Wi-Fi control principle and smart device development.

Introduction to key components

The Tuya Sandwich Wi-Fi SoC master control board (WB3S) adopts the high-performance Wi-Fi module WB3S developed by Tuya Smart. The development board contains Wi-Fi module WB3S, buttons, LED indicators, user-defined I/O interfaces, power supply, and more. For more information, see WB3S Module Datasheet.

I/O ports and function definitions

  • CN5 serial port for UART upgrade: Used for system upgrade and debugging.

  • LED indicator LED2: 3.3V power indicator.

  • LED indicator LED1: You can customize functions.

  • Button SW1: You can customize functions. It is detected by P14. Its logic level is high when initialized and is low when pressed.

  • Other GPIO ports: You can customize functions.

    No. Symbol Description
    1 CEN The hardware reset pin, which is active low.
    2 3V3 3.3V power input pin.
    4 GND Power ground.
    5 ADC ADC input pin.
    6 TXD2 Log port TXD2.
    7 RXD2 Log port RXD2.
    8 RXD User serial port RXD.
    9 TXD User serial port TXD.
    10 PWM0 GPIOP_6, which is corresponding to IC-P6. It can be configured as PWM output or IIC_SCL.
    11 PWM1 GPIOP_7, which is corresponding to IC-P7. It can be configured as PWM output or IIC_SCL.
    12 PWM2 GPIOP_8, which is corresponding to IC-P8. It can be configured as PWM output.
    13 PWM3 GPIOP_9, which is corresponding to IC-P9. It can be configured as PWM output.
    14 PWM4 GPIOP_24, which is corresponding to IC-P24. It can be configured as PWM output.

Schematic diagram and PCB

  • Schematic diagram of Tuya Sandwich Wi-Fi SoC master control board (WB3S):

    Tuya Sandwich Wi-Fi SOC Board (WB3S)

  • PCB of Tuya Sandwich Wi-Fi SoC master control board (WB3S):

    Tuya Sandwich Wi-Fi SOC Board (WB3S)

Things to note

  • The development board in this solution must be used with a power board.
  • The development board in this solution only supports 3.3V power input, and the supply current is not less than 400mA.