TYWE1S Module Datasheet

Last Updated on : 2020-09-29 02:16:25download

Product Overview

TYWE1S is a low-power embedded WiFi module that Tuya has developed. It consists of a highly integrated wireless RF chip (ESP8266EX) and an external flash chip, with an embedded WiFi network protocol stack and varied library functions. TYWE1S further contains a low-power 32-bit CPU, 2-MB flash memory, 36-KB static random-access memory (SRAM), and rich peripherals.
TYWE1S is an RTOS platform that integrates all function libraries of the WiFi MAC and TCP/IP protocols. You can develop embedded WiFi products as required.


  • Embedded low-power 32-bit CPU, which can also function as an application processor
  • The clock rate supports 80 Mhz and 160 Mhz
  • Working voltage: 3.0 to 3.6 V
  • Peripherals: 6 GPIOs, 2 universal asynchronous receiver/transmitters (UART) and 1 analog to digital converter (ADC)
  • WiFi connectivity
    • 802.11 b/g/n
    • Channels 1 to 14 at 2.4 Ghz (channels 1 to 11 for US/CA and channels 1 to 13 for EU/CN)
    • Support WPA and WPA2 security modes
    • Up to +20 dBm output power in 802.11b mode
    • Support STA/AP/STA+AP working mode
    • Support SmartConfig functions for Android and iOS devices
    • Power consumption in standby state is less than 0.1 mW (DTIM3)
    • Onboard PCB antenna with a gain of 3 dBi and an internal antenna IPEX connector
    • Passed CE and FCC certification
    • Working temperature: -20 to 85℃


  • Intelligent building
  • Smart household and home appliances
  • Medical health care
  • Industrial wireless control
  • Baby monitor
  • Network camera
  • Intelligent bus

Change History

Serial Number Update Date Updated Content Version after Update
1 07/23/2019 This is the first release. 2.0.0

Module Interfaces

Dimensions and Footprint

TYWE1S has two rows of pins with a 1.5 mm pin spacing. Each row has 9 pins.
The TYWE1S dimensions are 18±0.35 mm (W)×23.5±0.35 mm (L) ×3.1±0.15mm (H). The thickness of the PCB is 1.0 mm±0.1 mm.
TYWE1S Module Datasheet
TYWE1S Module Datasheet

Pin Definition

Illustration on the arrangement of pins of TYWE1S:

Pin Number Symbol I/O Type Function
1 Vin P UART1 power supply conversion (5V or 3.3V)
2 U1TX I/O UART1_TXD (user-side serial interface)
3 U1RX I/O UART1_RXD (user-side serial interface)
4 3V3 P The main power supply pin of the module (3.3V)
5 GND P Power supply reference ground
6 IO14 I/O GPIO_14, which corresponds to MTMS (Pin 9) of IC
7 IO12 I/O GPIO_12, which corresponds to MTDI (Pin10) of IC
8 U0TX I/O LOG_TXD (used to display the module internal information)
9 IO0 I/O GPIO_0 (In the module power-on initialization process, use with caution)
10 IO5 I/O GPIO_5, which corresponds to GPIO 5 (Pin 24) of IC
11 U0RX I/O LOG_RXD (used to display the module internal information)
12 IO1 I/O GPIO_1 (in the module initialization process, the status of the pin is unstable)
13 IO4 I/O GPIO_4, which corresponds to GPIO 4 (Pin 16) of IC
14 GND P Power supply reference ground
15 GND P Power supply reference ground
16 RESET I/O External reset signal (active low)
17 TOUT AI ADC port
18 GND P Power supply reference ground


  • P indicates power supply pins, I/O indicates input/output pins, and AI indicates analog input pins.
  • RST is only a module reset pin and cannot be used for clearing information about WiFi network configuration.
  • Pin 17 can only be used as an ADC interface but cannot be used as a common IO interface. Once not used, it needs to be pulled up.
    As an ADC input interface, the input voltage range is 0 to 1.0V.
  • UART1 is a user-side serial interface.

Electrical Parameters

Absolute Electrical Parameters

Parameter Description Minimum value Maximum Value Unit
Ts Storage temperature -40 125
VCC Power supply voltage -0.3 3.6 V
Static electricity discharge voltage (human body model) TAMB-25℃ - 2 KV
Static electricity discharge voltage (machine model) TAMB-25℃ - 0.5 KV

Working Conditions

Parameter Description Minimum value Typical Value Maximum Value Unit
Ta Working temperature -20 - 85
VDD Working voltage 3.0 - 3.6 V
VIL IO low level input -0.3 - 3V3*0.25 V
VIH IO high level input 3V3*0.75 - 3.6 V
VOL IO low level output - - 3V3*0.1 V
VOH IO high level output 0.8 - 3V3 V
Imax IO drive current - - 12 mA
Cpad Input pin capacitance - 2 - pF

RF Power Consumption

Symbol Mode Rate Transmit Power/Receive Typical Value Unit
Transmit 11b 11 Mbps +17 dBm 220 mA
Transmit 11g 54 Mbps +15 dBm 110 mA
Transmit 11n MCS 7 +13 dBm 100 mA
Receive 11b 11 Mbps Constantly receive 76 mA
Receive 11g 54 Mbps Constantly receive 76 mA
Receive 11n MCS7 Constantly receive 76 mA

Working Power Consumption

Working Mode Working Status, Ta = 25°C Average Value Peak Value (Typical Value) Unit
Quick connection network state The module is in the fast network connection state and the WiFi indicator always flashes 100 151 mA
Hotspot network configuration state The module is in the hotspot network configuration state and the WiFi indicator flashes slowly 105 451 mA
Network connection idle state The module is connected to the network and the WiFi indicator is always on 58.5 411 mA
Network connection operation state The module is connected to the network and the WiFi indicator is always on 100 411 mA
Disconnected state The module is disconnected and the WiFi indicator is dark 156 430 mA

Note: The peak value lasts about 5us. The above parameters may vary with different firmware functions.

RF Parameters

Basic RF Features

Parameter Description
Working frequency 2.412 to 2.484 GHz
WiFi standard IEEE 802.11n/g/n (channels 1 to 14)
Data transmission rate 11b: 1, 2, 5.5, 11 (Mbps)
11g: 6, 9, 12, 18, 24, 36, 48, 54 (Mbps)
11n: HT20 MCS 0 to 7
Antenna type PCB antenna with a gain of 3.0 dBi (default)
Antenna to which a U.FL RF connector is externally connected (optional)

TX Performance

Parameter Minimum Value Typical Value Maximum Value Unit
Average RF output power, 802.11b CCK Mode 11M - 20 - dBm
Average RF output power, 802.11g OFDM Mode 54M - 17 - dBm
Average RF output power, 802.11n OFDM Mode MCS7 - 14 - dBm
Frequency error -20 - 20 ppm
EVM@802.11b CCK 11 Mbps Mode 17.5 dBm - -16 - dB
EVM@802.11g OFDM 54 Mbps Mode 15.0 dBm - -30 - dB
EVM@802.11n OFDM MCS7 Mode 14.0 dBm - -31 - dB

RX Performance

Parameter Minimum Value Typical Value Maximum Value Unit
PER<8%, RX sensitivity, 802.11b CCK Mode 11M - -84 - dBm
PER<10%, RX sensitivity, 802.11g OFDM Mode 54M - -73 - dBm
PER<10%, RX sensitivity, 802.11n OFDM Mode MCS7 - -70 - dBm

Antenna Information

Antenna Type

TYWE1S uses two types of antennas: onboard PCB antenna and external antenna. By defalut, the onboard PCB antenna is preferred.
The user can modify the antenna access method by switching the jumper resistor: (TYWE1S is equipped with resistor 0omh/0402 red mark).

TYWE1S Module Datasheet
TYWE1S Module Datasheet

Antenna Interference Reduction

To ensure optimal WiFi performance when the WiFi module uses an onboard PCB antenna, it is recommended that the antenna be at least 15 mm away from other metal parts.
To ensure the antenna performance, the PCB should not be routed or clad with copper in the antenna area. The main points of the layout: 1. Make sure that there is no substrate medium directly below or above the printed antenna. 2. Make sure that the area around the printed antenna is far away from the metal copper skin, so as to ensure the radiation effect of the antenna to the greatest extent.

TYWE1S Module Datasheet

Antenna Connector Specifications

Parameters of the U.FL RF connector are shown as belows:

TYWE1S Module Datasheet

Packaging Information and Production Instructions

Mechanical Dimensions

TYWE1S Module Datasheet
TYWE1S Module Datasheet

Recommended PCB Layout

TYWE1S Module Datasheet
TYWE1S Module Datasheet

Production Instructions

  1. Tuya’s stamp hole package module must be mounted by SMT machine, and the mounting must be completed within 24 hours after unpacking and programming of the firmware. Otherwise, it must be packaged again under vacuum. The module must be baked before mounting.
    A. SMT equipment

    • Reflow soldering machine
    • Automated optical inspection (AOI) equipment
    • Nozzle with a 6 mm to 8 mm diameter

    B. Baking equipment:

    • Cabinet oven
    • Anti-static heat-resistant trays
    • Anti-static heat-resistant gloves
  2. Storage conditions for a delivered module are as follows:
    A. The moisture-proof bag must be placed in an environment where the temperature is below 30°C and the relative humidity is lower than 70%.
    B. The shelf life of a dry-packaged product is 6 months from the date when the product is packaged and sealed.

    D. The package contains a humidity indicator card (HIC).

TYWE1S Module Datasheet

  1. Bake a module based on HIC status as follows when you unpack the module package:
    A. If the 30%, 40%, and 50% circles are blue, bake the module for 2 consecutive hours.
    B. If the 30% circle is pink, bake the module for 4 consecutive hours.
    C. If the 30% and 40% circles are pink, bake the module for 6 consecutive hours.
    D. If the 30%, 40%, and 50% circles are pink, bake the module for 12 consecutive hours.
  2. Baking settings:
    A. Baking temperature: 125±5°C
    B. Alarm temperature: 130°C
    C. SMT ready temperature after natural cooling: < 36°C
    D. The number of drying times: 1
    E. Rebaking condition: The module is not soldered within 12 hours after baking
  3. Do not use SMT to process modules that have been unpacked for more than 3 months, because electroless nickel/immersion gold (ENIG) is used for PCBs and they are seriously oxidized after more than 3 months. SMT is very likely to cause pseudo and missing soldering. Tuya is not liable for such problems and consequences.
  4. Before SMT, take electrostatic discharge (ESD) protective measures.
  5. To reduce the reflow defect rate, draw 10% of the products for visual inspection and AOI before the first mounting to determine proper methods for controlling the oven temperature and attaching and placing components. Draw 5 to 10 modules from subsequent batches each hour for visual inspection and AOI.

Recommended Oven Temperature Curve

Perform SMT based on the following reflow oven temperature curve. The highest temperature is 245°C. The reflow temperature curve is shown as belows:
TYWE1S Module Datasheet

Storage Conditions

TYWE1S Module Datasheet


FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled rolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator and your body.

Important Note
This radio module must not installed to co-locate and operating simultaneously with other radios in host system except in accordance with FCC multi-transmitter product procedures. Additional testing and equipment authorization may be required to operating simultaneously with other radio.
The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user.
The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.
The end user manual shall include all required regulatory information/warning as shown in this manual, including: This product must be installed and operated with a minimum distance of 20 cm between the radiator and user body.
This device have got a FCC ID: 2ANDL-TYWE1S. The final end product must be labeled in a visible area with the following: “Contains Transmitter Module FCC ID: 2ANDL-TYWE1S”
This device is intended only for OEM integrators under the following conditions:

  1. The antenna must be installed such that 20 cm is maintained between the antenna and users, and
  2. The transmitter module may not be co-located with any other transmitter or antenna.

As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed.

Declaration of Conformity European notice
TYWE1S Module Datasheet
Hereby, Hangzhou Tuya Information Technology Co., Ltd declares that this module product is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EU, 2011/65/EU. A copy of the Declaration of conformity can be found at
TYWE1S Module Datasheet

This product must not be disposed of as normal household waste, in accordance with EU directive for waste electrical and electronic equipment (WEEE-2012/19/EU). Instead, it should be disposed of by returning it to the point of sale, or to a municipal recycling collection point.
The device could be used with a separation distance of 20 cm to the human body.

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