Wi-Fi Module TYJW2S-5V

Last Updated on : 2023-06-02 08:04:50download

Product Overview

After a period of service, this module will become deprecated due to product upgrades and iterations, user requirements, production inventory, or other reasons. To improve the compatibility of your smart devices and minimize the impact on your use, Tuya continues to provide webpage documentation of deprecated modules, but no longer maintains or updates the documentation. The content herein is for reference only.
If you have any questions, submit a ticket to contact Tuya or consult Tuya’s account manager to request support. If you need similar substitute products, see JWBR2S-5V or WBR Module Datasheet.

TYJW2S-5V is a Wi-Fi module with a 5V TTL UART series port interface designed by Hangzhou Tuya Information Technology Co., Ltd. The module consists of a Tuya Wi-Fi module and some power-level converter circuits, which have been programmed with Wi-Fi network protocol and plenty of software examples.

TYJW2S-5V is an RTOS platform, embedded with all the Wi-Fi MAC and TCP/IP protocol function examples, users can customize their Wi-Fi product by using these software examples.

​ Figure 1 shows the block diagram of the TYJW2S-5V:
Wi-Fi Module TYJW2S-5V

​ Figure 1 The block diagram of the TYJW2S-5V


  • Integrated low power consumption 32-bit CPU, also known as application processor
    Basic frequency can support 80MHz and 160MHz

  • Supply voltage range: TYJW2S-5V support 4.5V ~ 5.5V

  • Peripherals: 1*UART (TTL)

  • Wi-Fi connectivity:

    • 802.11 b/g/n

    • Channel 1-14@2.4GHz

    • Support WPA/WPA2

    • +20dBm output power in 802.11b mode

    • Support STA/AP/STA+AP operation mode

    • Support SmartConfig function for both Android and IOS devices

  • On-board PCB antenna or IPEX connect for external antenna

  • Operating temperature range: -20℃ to 85℃

Main Application Fields

  • Intelligent Building
  • Intelligent home, Intelligent household applications
  • Health care
  • Industrial wireless control
  • Portable devices

Dimensions and Footprint


​ TYJW2S-5V has an interface of PH-4AW connection port. The distance between each Pin is 2mm. The interface is a PH2.04-Y connector.

​ Size of TYJW2S-5V: 42.6mm(W)*31mm(L)*9.1mm(H)

​ Figure 2 shows the dimensions of TYJW2S-5V.

Wi-Fi Module TYJW2S-5V

​ Front view Back view

Pin Definition

​ Table 1 shows the general pin attributes of TYJW2S-5V

​ Table 1 The typical pin definition of TYJW2S-5V

1 RX I/O RX port, input 5V TTL
2 TX I/O TX port, output 5V TTL
3 GND P Ground
4 VCC P Supply Voltage 5V

Note: S: Power supply pins; I/O: Digital input or output pins;

Test Point Definition

​ The test point pin definition is shown in Table 2:

​ Table 2 The typical pin definition of TYJW2S-5V

5 3.3V P Internal 3.3V voltage pin
6 GND P Ground
7 BOOT I/O IO0 pin, firmware burning selection pin
8 TXD1 I/O Information print pin
9 RXD0 I/O Firmware burning pin
10 TXD0 I/O Firmware burning pin
11 RST I/O Reset pin

​ Note: P: Power supply pins; I/O: Digital input or output pins

​ If IO0 is unconnected, the module is in normal working mode; If IO0 is in a negative level, the module is in firmware burning mode.

​ RST is used for module hardware reset, and cannot clear Wi-Fi connection information.

​ This test point is not recommended for regular usage.

Electrical Characteristics

Absolute Maximum Ratings

​ Table 3 Absolute Maximum Ratings

Ts Storage temperature -20 85
VCC (TYJW2S-5V) Supply voltage -0.3 5.5 V
VCC (TYJW2S-3.3V) Supply voltage -0.3 3.6 V
Static electricity voltage (human model) TAMB-25℃ - 2 KV
Static electricity voltage (machine model) TAMB-25℃ - 0.5 KV

Electrical Conditions

​ Table 4 Electrical Conditions

Ta Working temperature -20 - 85
VCC (TYJW2S-5V) Working voltage 4.5 5 5.5 V
VCC(TYJW2S-3.3V) Working voltage 3.0 3.3 3.6 V
VIL IO negative level input -0.3 - VCC*0.25 V
VIH IO positive level input VCC*0.75 - VCC V
VOL IO negative level output - - VCC*0.1 V
VoH IO positive level output VCC*0.8 - VCC V
Imax IO drive current - - 5 mA

Wi-Fi Transmitting Current Consumptions

​ Table 5 Wi-Fi TX current consumption

IRF 11b 11Mbps 260 mA
IRF 11g 54Mbps 100 mA
IRF 11n MCS7 100 mA

Wi-Fi Receiving Current Consumptions

​ Table 6 Wi-Fi RX current consumption

IRF 11b 11Mbps 70 mA
IRF 11g 54Mbps 70 mA
IRF 11n MCS7 70 mA

Working Mode Current Consumptions

​ Table 7 MCU working current consumption

EZ Mode Module is under EZ paring mode, Wi-Fi indicator light flashes quickly 90 436 mA
AP Mode Module is under AP paring mode, Wi-Fi indicator light flashes slowly 101 451 mA
Operation Mode Module is connected, Wi-Fi indicator light is on 58.5 411 mA
Disconnection Mode Modules is disconnected, Wi-Fi indicator light is off 156 430 mA

WLAN Radio Specification

Basic Radio Frequency Characteristics

​ Table 8 Basic radio frequency characteristic

Frequency band 2.400GHz to 2.4835GHz
Wi-Fi standard IEEE 802.11n/g/b (Terminal 1-14)
Data transmitting rate 11b: 1, 2, 5.5, 11(Mbps)
11g: 6, 9, 12, 18, 24, 36, 48, 54(Mbps)
11n: HT20, MCS0~7
Antenna type On-board PCB Antenna (Default), UF.L RF external antenna (optional)

Wi-Fi Transmitting Power

​ Table 9 Wi-Fi transmitting power

RF average output power, 802.11b CCK Mode 1M - 17 - dBm
RF average output power, 802.11g OFDM Mode 54M - 15 - dBm
RF average output power, 802.11n OFDM Mode MCS7 - 13 - dBm
The Frequency error -10 - 10 ppm

Wi-Fi Receiving Sensitivity

​ Table 10 Wi-Fi Receiving sensitivity

PER<8%, Receiving sensitivity, 802.11b CCK Mode 1M - -91 - dBm
PER<10%, Receiving sensitivity, 802.11g OFDM Mode 54M - -75 - dBm
PER<10%, Receiving sensitivity, 802.11n OFDM Mode MCS7 - -72 - dBm

Antenna Information

Antenna Type

​ The antenna can be connected using an on-board PCB antenna or an external antenna; the default way is using the on-board PCB antenna. If an external antenna is needed, please contact the BD manager.

Reduce Antenna Interference

​ While using the on-board PCB antenna, in order to have the best Wi-Fi performance, it’s recommended to keep a minimum 15mm distance between the antenna part and the other metal pieces.

U.FL RF Connector

​ Figure 3 shows the physical parameter of the U.FL RF connector.

Wi-Fi Module TYJW2S-5V

Packaging Information And Production Guide

Mechanical Dimensions

​ Figure 4 Top view of the module

Wi-Fi Module TYJW2S-5V

Note: the tolerance of the PCB outline border is ±0.15mm, and the tolerance of PCB thickness is ±0.1mm

Production Guide

The storage for the delivered module should meet the following condition:

  1. The anti-moisture bag should be kept in an environment with a temperature < 30℃ and humidity < 85% RH.
  2. The expiration date is 6 months since the dry packaging products were sealed.


  1. All the operators should wear an electrostatic ring in the whole process of production.
  2. While operating, water and dirt should not contact the modules.

Wire parameter

Wi-Fi Module TYJW2S-5V
Figure 5 Wiring specification parameters

Shell parameter

Wi-Fi Module TYJW2S-5V

Wi-Fi Module TYJW2S-5V

Figure 6 Shell parameters