TYWE3S Module

WiFi module introduction–TYWE3S

1. Product Overview

TYWE3S is a low-power embedded Wi-Fi module developed by Hangzhou Tuya technology co., LTD. It consists of a highly integrated radio frequency chip ESP8266 and a handful of peripheral components, with a built-in Wi-Fi network protocol stack and rich library functions. TYWE3S is built in low-power 32-bit CPU, 1Mbyte flash memory, 50KB SRAM and rich peripheral resources.

TYWE3S is a RTOS platform that integrates all Wi-Fi MAC and TCP/IP protocol libraries. Users can develop embedded Wi-Fi products that meet their needs based on these developments.

The functional diagram of TYWE3S is shown in Figure 1:


1.1 Features

  • Built-in low-power 32-bit CPU, can be concurrently used as an application processor (main-frequency support 80MHz & 160MHz)
  • Built-in low-power 32-bit CPU can be concurrently used as an application processor (main-frequency support 80MHz and 160MHz)
  • Working voltage:3V-3.6V
  • Peripheral:9×GPIOs, 1×UART, 1×ADC
  • Wi-Fi connectivity
    • 802.11b/g/n
    • Channel 1-14@2.4GHz
    • Support WPA/WPA2 safe mode
    • 802.11b mode + 20dBm output power
    • Support STA/AP/STA+AP work mode
    • Support SmartConfig function(including Android & iOS devices)
    • Onboard PCB antenna
    • Working temperature:-20℃-85℃

1.2 Major application fields

  • Smart home appliances, smart home
  • Smart building
  • Webcam
  • Health care
  • Industrial wireless control
  • Smart bus, etc

2. Dimensions and Footprint

2.1 Dimensions

TYWE3S has 2 rows of pins, lead pitch is 2mm. TYWE3S size dimension:16mm (W)×24mm (L) ×3.5mm (H)

尺寸封装 尺寸封装

2.2 Definition of pin

Pin Number Symbol IO type Function
3 GPIO5 I/O GPIO5_05
4 GPIO4 I/O GPIO5_04
5 GPIO0 I/O GPIO5_0(Participate in the module power-on initialization process,use with caution)
6 GPIO2 O UART0_TXD(Used to print module internal information)
7 GPIO15 O GPIO_15(Participate in the module power-on initialization process,use with caution)
8 GND P Power Reference Ground
9 VCC P Module Power Pin(3.3V)
10 GPIO13 I/O GPIO_13
11 GPIO12 I/O GPIO_12
12 GPIO14 I/O GPIO_14
13 GPIO16 I/O GPIO_16(Use 10K pull-up resistor for use)
14 EN I Module enable pin,normal use needs to receive 3.3V
15 ADC AI ADC port, 10-bit precision SAR ADC
16 RST I/O Hardware reset pin (low level effective, internal pull-up resistance)

Instructions:P indicates the power pin,I/O means input and output pins,AI represents the analog input pin. RST is just a module hardware reset pin, can’t clear WiFi distribution network. (1):This pin can only be used as an ADC port, can not be used as a normol IO port,need to be suspended when not in use。 When used ad an ADC input,input voltage range is limited to 0~1.0V (2):UARTO is the user serial port,when the module is powered om, serial port has information output,user can ignore.

2.3 Definition of test point

Definition of test point pin is shown in the diagram as below.

Pin Number Symbol IO type Function
- TEST I For module production testing

3. Packaging of production

3.1 Mechanical dimension



生产封装 生产封装