Hangzhou AiXiangJi Technology TYWE3S WiFi Module User Manual TYWE3S EN V1x
Hangzhou AiXiangJi Technology Co., Ltd. WiFi Module TYWE3S EN V1x
Contents
- 1. Users Manual
- 2. User Manual
Users Manual

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TUYA WiFi Module 
1. Product Overview 
TYWE3S  is  a  low power  consumption module with built-in  Wi-Fi  connectivity solution 
designed  by  HangZhou  Tuya  Technology  Corporation.  The  Wi-Fi  Module  consists  of  a  highly 
integrated wireless radio chip ESP8266 and some extra component that has been programed with 
Wi-Fi  network  protocol  and  plenty  of  software  examples. TYWE3S include a 32-bit CPU,  1M 
byte flash, 50k SRAM and various peripheral resources. 
TYWE3S is a  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 TYWE3S. 
Figure 1. The block diagram of the TYWE3S 
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1.1 Features 
² Integrated low power consumption 32-bit CPU, also known as application processor 
² Basic frequency of the CPU can support both 80MHz and 160MHz 
² Supply voltage range: 3V to 3.6V 
² Peripherals: 9 GPIO channels, 1 UART, 1 ADC 
² Wi-Fi connectivity: 
l 802.11 b/g/n 
l channel 1 to 11@2.4G for FCC,channel 1 to 13 @2.4G for EU 
l Support WPA/WPA2 
l +20dBm output power in 802.11b mode 
l Support STA/AP/STA+AP operation mode 
l Support SmartConfig function for both Android and IOS devices 
l On-board PCB antenna 
l Operating temperature range: -20℃ to 85℃   

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1.2 Main Application Fields 
² Intelligent Building 
² Intelligent home, Intelligent household applications 
² Health care 
² Industrial wireless control 
² Baby monitor 
² Webcam 
² Intelligent bus 
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2. Dimensions and Footprint 
2.1 Dimensions 
TYWE3S has 2 columns of Pins. The distance between each Pin is 2mm. 
Size of TYWE3S: 16mm(W)*24mm(L)*3.5mm(H) 
Figure 2 shows the dimensions of TYWE3S. 
Figure 2. The dimensions of TYWE3S 
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2.2 Pin Definition 
Table 1 shows the general pin attributes of TYWE3S 
Table 1. The typical pin definition of TYWE3S 
PIN$
NO.$
NAME$
TYP
E$
DISCREPTION$
+'
!,(-'
.'
/)0!-1!,('234'
3'
0,(-'
56.'
/)0!-10,('234'
%'
785.9'
56.'
785.1-9'
:'
785.:'
56.'
785.1-:'
9'
785.-'
56.'
785.1-2;<=>?@@ABC'DE<ABC'ABAFAGH@I'>GEFA=B'JK?B'E@?D4'
L'
785.3'
.'
/)0!-1!,(2E@?D'F=';<ABF'M=DEH?N@'ABF?<BGH'ABO=<MGFA=B4'
P'
785.+9'
.'
785.1+92;<=>?@@ABC'DE<ABC'ABAFAGH@I'>GEFA=B'JK?B'E@?D4'
Q'
7R('
8'
7<=EBD'
S'
TUU'
8'
&E;;HV'W=HFGC?'2%X%T4'
+-'
785.+%'
56.'
785.1+%'
++'
785.+3'
56.'
785.1+3'
+3'
785.+:'
56.'
785.1+:'
+%'
785.+L'
56.'
785.1+L(+-Y';EHHZE;'<?@A@F=<'B??D?D4'
+:'
$R'
5'
$BG[H?';AB'O=<'M=DEH?I'KACK'H?W?H'?OO?>F@'

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+9'
)(U'
)5'
)(U'F?<MABGH2+-Z[AF@'&)0')(U4'2+4'
+L'
0&!'
56.'
$\F?<BGH'<?@?F'2H=J'H?W?H'?OO?>F@I'FK?<?N@'GH<?GDV'KGD';EHHZE;'<?@A@F=<4'
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Note: S: Power supply pins; I/O: Digital input or output pins; AI: Analog input. RST pin is 
the module hardware reset pin; it cannot eliminate module-pairing information. 
(*1) This pin can only be used as ADC input, cannot use it as normal I/O. when not using, 
just connect nothing. When used as ADC input, the input voltage range is 0~1.0V. 
(*2) UART0 is serial port, during power on progress; this serial port will output something, 
which can be ignored. 
2.3 Test Pin Definition 
Table 2 shows the general test pin definition of TYWE3S 
Table 2. The general test pin definition of TYWE3S 
PIN$NO.$
NAME$
TYPE$
DESCRIPTION$
Z'
!$&!'
5'
/@?D'O=<'M=DEH?]@';<=DE>FA=B'F?@F'
Note: This test pin is not recommended to use. 

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3. Electrical Characteristics 
3.1 Absolute Maximum Ratings 
Table 3. Absolute Maximum Ratings 
PARAMETERS$
DESCRIPTION$
MIN$
MAX$
UNIT$
!@'
&F=<GC?'F?M;?<GFE<?'
Z3-'
Q9'
℃'
TUU'
&E;;HV'W=HFGC?'
Z-X%'
%XL'
T'
&FGFA>'?H?>F<A>AFV'W=HFGC?' '
2KEMGB'M=D?H4'
!)^_Z39℃'
Z'
3'
`T'
&FGFA>'?H?>F<A>AFV'W=HFGC?'
'2MG>KAB?'M=D?H4'
!)^_Z39℃'
Z'
-X9'
`T'
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3.2 Electrical Conditions 
Table 4. Electrical Conditions   
PARAMETERS$
DESCRIPTION$
MIN$
TYPICAL$
MAX$
UNIT$
!G'
#=<YABC'F?M;?<GFE<?'
Z3-'
Z'
Q9'
℃'
TUU'
#=<YABC'W=HFGC?'
%'
%X%'
%XL'
T'
T5a'
5.'H=J'H?W?H'AB;EF'
Z-X%'
Z'
TUUb-X39'
T'
T5*'
5.'KACK'H?W?H'AB;EF'
TUUb-XP9'
Z'
TUU'
T'
T.a'
5.'H=J'H?W?H'=EF;EF'
Z'
Z'
TUUb-X+'
T'
T=*'
5.'KACK'H?W?H'=EF;EF'
TUUb-XQ'
Z'
TUU'
T'
5MG\'
5.'D<AW?'>E<<?BF'
Z'
Z'
+3'
M)'
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3.3 Wi-Fi Transmitting Current Consumptions 
Table 5. Wi-Fi TX current consumption 
8)0)^$!$0&'
^.($'
0)!$'
F<GB@MAFFABC';=J?<'
!"85U)a'
/R5!'
50c'
++['
++^[;@'
d+PD_M'
33-'
M)'
50c'
++C'
9:^[;@'
d+9D_M'
++-'
M)'
50c'
++B'
^U&P'
d+%D_M'
+--'
M)'
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3.4 Wi-Fi Receiving Current Consumptions 
Table 6. Wi-Fi RX current consumption 
PARAMETERS$
MODE$
RATE$
TYPICAL$
UNIT$
50c'
++['
++^[;@'
PL'
M)'
50c'
++C'
9:^[;@'
PL'
M)'
50c'
++B'
^U&P'
PL'
M)'
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3.5 Working Mode Current Consumptions 
Table 7. The module working current consumption 
WORK$MODE$
AT$TA=25℃$
TYPICAL$
MAX*$
UNIT$
$e'^=D?'
!"#$%&'A@'EBD?<'$e';G<ABC'M=D?I'#AZcA'
ABDA>GF=<'HACKF'OHG@K?@'fEA>YHV'
Q-'
+9+'
M)'
)8'^=D?'
!"#$%&'A@'EBD?<')8';G<ABC'M=D?I'#AZcA'
ABDA>GF=<'HACKF'OHG@K?@'@H=JHV'
S-'
:9+'
M)'
.;?<GFA=B'^=D?'
!"#$%&'A@'>=BB?>F?DI'#AZcA'ABDA>GF=<'HACKF'A@'=B'
9QX9'
:++'
M)'
(A@>=BB?>FA=B'
^=D?'
!"#$%&'A@'DA@>=BB?>F?DI'#AZcA'ABDA>GF=<'HACKF'A@'
=OO'
Q-'
:%-'
M)'
4. WLAN Radio Specification 
4.1 Basic Radio Frequency Characteristics 
Table 8. Basic Radio frequency characteristics   
PARAMETERS$
DESCRIPTION$
c<?fE?B>V'[GBD'
3X:7*g'F='3X97*g'
#AZcA'@FGBDG<D'
5$$$'Q-3X++B6C6['2!?<MABGH'+Z+:4'
(GFG'F<GB@MAFFABC'<GF?'
++[h+I3I9X9I++2^[;@4'
++ChLISI+3I+QI3:I%LI:QI9:2^[;@4'
++Bh*!3-I'^U&-iP'
)BF?BBG'FV;?'
.BZ[=G<D'8U_')BF?BBG' '
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4.2 Wi-Fi Transmitting Power   
Table 9. Wi-Fi transmitting power   
PARAMETERS$
MIN$
TYPICAL$
MAX$
UNI
T$
0c'GW?<GC?'=EF;EF';=J?<I'Q-3X++['UU`'^=D?'
++^'
Z'
3-'
Z'
D_M'
0c'GW?<GC?'=EF;EF';=J?<I'Q-3X++C'.c(^'^=D?'
9:^'
Z'
+P'
Z'
D_M'
0c'GW?<GC?'=EF;EF';=J?<I'Q-3X++B'.c(^'^=D?'
^U&P'
Z'
+:'
Z'
D_M'
!K?'c<?fE?B>V'?<<=<'
Z+-'
Z'
+-'
;;M'
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4.3 Wi-Fi Receiving Sensitivity   
Table 9. Wi-Fi Receiving sensitivity   
PARAMETERS$
MIN$
TYPICAL$
MAX$
UNI

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T$
8$0jQkI'0?>?AWABC'@?B@AFAWAFVI'Q-3X++['UU`'^=D?'
++^'
Z'
ZS+'
Z'
D_M'
8$0j+-kI'0?>?AWABC'@?B@AFAWAFVI'Q-3X++C'.c(^'^=D?'
9:^'
Z'
ZP9'
Z'
D_M'
8$0j+-kI'0?>?AWABC'@?B@AFAWAFVI'Q-3X++B'.c(^'^=D?'
^U&P'
Z'
ZP3'
Z'
D_M'
'
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5. Antenna Information   
5.1 Antenna Type   
Antenna can be connected only using On-board PCB antenna. 
5.2 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.   
User’s own PCBA design is recommended NOT to pass any wire, NOT do copper pour under 
the region of the module’s antenna, to avoid interferences. 

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6. Packaging Information And Production Guide 
6.1 Mechanical Dimensions 
Figure 3. Top view of the module 
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Figure 4. The module’s mechanical view 
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6.2 PCB Recommended Package 
Figure 5. PCB schematic Drawing 
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Figure 6. PCB Package Drawing 
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6.3 Production Guide 
² The storage for the delivered module should meet the following condition: 
1.  The  anti-moisture  bag should  be  kept  in  the  environment  with temperature <  30℃ and 
humidity < 85% RH. 
2. The expiration date is 6 months since the dry packaging products was sealed. 
² Cautions: 
1. All the operators should wear electrostatic ring in the whole process of production. 
2. While operating, water and dirt should not have any contact with the modules. 
6.4 Recommended furnace temperature curve 
Figure 7. PCB Package Drawing'Recommended furnace temperature curve 
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7. Declaration 
7.1 Federal Communications Commission (FCC) Declaration of Conformity 
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. 

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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. 
This device and its antenna(s) must not be co-located or operating in conjunction 
with any other antenna or transmitter. 
15.105 Information to the user. 
(b) For a Class B digital device or peripheral, the instructions furnished the 
user shall include the following or similar statement, placed in a prominent 
location in the text of the manual: 
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. 
This equipment complies with FCC radiation exposure limits set forth for an 
uncont 
rolled environment. This equipment should be installed and operated with 
minimum 
distance 20cm between the radiator and your body. 
Radiation Exposure Statement: 
This equipment complies with FCC radiation exposure limits set forth for an 
uncontrolled environment. 
This transmitter must not be co-located or operating in conjunction with any other 
antenna or transmitter. 
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 final end product must be labelled in a visible area with the following: 
“Contains Transmitter Module 2AFNL-TYWE3S” 

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This radio module must not installed to co-locate and operating simultaneously 
with 
other radios in host system, additional testing and equipment authorization may 
be 
required to operating simultaneously with other radio. 
This LMA does not have RF shielding and is tested and approved as standalone 
configuration, additional evaluation may be required for any system integrated 
this radio module. 
This transmitter module is authorized only for use in device where the antenna 
may be installed such that 20 cm may be maintained between the antenna and 
users. The final end product must be labeled in a visible area with the following: 
“Contains FCC ID: 2AFNL-TYWE3S”. 
7.2 Declaration of Conformity European notice 
Hereby, Hangzhou AiXiangJi Technology Co., Ltd declares that this Wifi module 
product is in compliance with essential requirements and other relevant provisions 
of Directive 2014/53/EC. A copy of the Declaration of conformity can be found at 
http://www.tuya.com. 
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$R'L3%++h3--Q'
$R'L-S9-Z+h3--Ld)++h3--Sd)+h3-+-d)+3h3-++d)3h3-+%'
The OEM integrator has to be aware not to provide information to the end user
regarding how to install or remove this RF module in the user's manual of the end 
product which integrates this module. The end user manual shall include all required 
regulatory information /warming as shown in this manual