Tuya Sandwich Zigebe MCU Board (ZS3L)

The Tuya Sandwich Zigbee MCU communication board (ZS3L) helps you quickly implement various smart hardware prototypes. You can use the Tuya Sandwich Zigbee MCU communication board (ZS3L) with other functional circuit modules or circuit boards to implement corresponding functions.

Scenarios

• The Tuya Sandwich Zigbee MCU communication board (ZS3L) 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 Zigbee MCU 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 the Zigbee control principle and smart device development.

Introduction to key components

The Tuya Sandwich Zigbee MCU communication board (ZS3L) adopts the Zigbee module ZS3L developed by Tuya Smart. The development board contains Zigbee module ZS3L, buttons, LED indicators, UART interfaces, power supply, and more. For more information, see Zigbee Module ZS3L Datasheet.

I/O ports and function definitions

• CN5: Used for firmware upgrade and debugging.

• LED indicator light LED2: 3.3V power indicator.

• LED indicator light LED1: You can customize its functions. The indicator is controlled by the PD00 pin and is active high.

• Button SW1: You can customize its functions. The button is detected by the PD01 pin. Its logic level is high when initialized.

• Other GPIO ports: Serial ports and power ports. See the following table.

  No.	Symbol	Description
  1	RST	The hardware reset pin. Its default logic level is high. It is active when pulled down.
  2	3V3	The power supply pin of the module. Its typical supply voltage is 3.3V.
  3	GND	Module power ground.
  4	TXD	UART_TXD, corresponding to the PA05 (Pin 22) of IC.
  5	RXD	UART_RXD, corresponding to the PA06 (Pin 23) of IC.

PCB

• Schematic diagram of Tuya Sandwich Zigbee MCU communication board (ZS3L)
  

  

• PCB of Tuya Sandwich Zigbee MCU communication board (ZS3L):

  

Things to note

• The development board in this solution must be used with a power board.
• The development board in this solution only supports a 3.3V power supply, and the supply current is greater than 300 mA.