WR1 Reset & Teardown (FCC ID 2ANDL-WR1)

WR1DA
TASHEET
Tuya SmartWi-Fi Module 
1. Product Overview
WR1 is a low power consumption module with built-in Wi-Fi connectivity solution designed 
by Hangzhou Tuya Informatio n Technology Co., Ltd. Th e Wi-Fi Module consists o f a highly 
integrated wireless radio chip W3 02 12E7 5M2 and some extra flash that has been programed 
with Wi-Fi network protocol an d plenty of software examples.WR1 include a ARM CM4F, 
WLAN MAC, 1T1R WLAN, maximum frequency reaches 125MHz, 256K SRAM, 1M byte 
flash and vario us peripheral resources. 
WR1 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 WR1. 
Figure 1. The block diagram of the WR1 
1.1 Features 
 Integrated low power consumption 32-bit CPU, also known as application processor
 Basic frequency of the CPU can support 125 MHz
 Supply voltage range: 3V to 3.6V
 Peripherals: 6 GPIO channels, 2 UART, 1 ADC
 Wi-Fi connectivity:
 802.11 B/G/N20/N40
 Channel 1 to 11 @ 2.4GHz
 Support WPA/WPA2
 +21.10dBm output power in 802.11b mode

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 Support SmartConfig function for both Android and IOS devices
 On-board PCB antenna
 Operating temperature range: -20℃ to 105 ℃
1.2 Main Application Fields 
 Intelligent Building
 Intelligent home, Intelligent household applications
 Healthy devices
 Industrial wireless control
 Baby monitor
 Webcam
 Intelligent bus
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2. Dimensions and Footprint
2.1Dimensions 
WR1 has 2 columns of Pins (2*9).The distance between each Pin is 1.5 mm. 
Size of WR1: 18mm(W)*23.5mm(L)*3.1mm(H) 
Figure 2 shows the dimensions of WR1. 
Figure 2. The dimensions of WR1 
2.2 Pin Definition 
Table 1 shows the generalpin attributes of WR1 
Table 1. The typical pin definition of WR1 
PIN
NO.
NAME TYP
DISCREPTION
1 VC
C P Supplyvoltage(3.3V)
2 UA
RT0_TX
I/O UART0_TXD
3 UA
RT0_RX
I/O UART0_RXD
4 VD33 P Supplyvo
ltage(3.3V)
5 GND P Gr
ound
6 GPIO
A_14 I/O GPIOA_14
7 GPIO
A_15 I/O GPIOA_15

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8 LO
G_TXD I/O UART_Log_TXD(usedtoprintmodule'sinternalinformation)
9 GPIO
A_0 I/O GPIOA_0,cannotbepull‐upwhilebooting,canbeusedasGPIO
whileinnormalworkingmode
10 GPIO
A_5 I/O GPIOA_5
11 LO
G_RXD I/O UART_Log_RXD(usedtoprintmodule'sinternalinformation)
12 GPIO
A_19 I/O GPIOA_19
13 GPIO
A_22 I/O GPIOA_22
14 GND P Gr
ound
15 GND P Gr
ound
16 CHIP_EN I/O Ex
ternalresetsingal(lowleveleffects)
17 ADC AI ADCt
erminal(input5Vmaximally)
18 GND P Gr
ound
N
ote: S: Power supply pins; I/O: Digital input or output pins; AI: Analog input. 
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3. Electrical Characteristics
3.1 
Absolute Maximum Ratings 
T
able 3.1. Absolute Maximum Ratings 
PA
RAMETERS DESCRIPTION MIN MAX UNIT
Ts St
oragetemperature‐ 20 105 ℃
VC
C Supplyvoltage ‐0.3 3.6 V
St
aticelectricityvoltage
(humanmodel)
TAMB‐25℃ ‐ 2 KV
St
aticelectricityvoltage
(machinemodel)
TAMB‐25℃ ‐ 0.5 KV
3.2 Electrical Conditions 
T
able 3.2. Electrical Conditions 
PA
RAMETERS DESCRIPTION MIN...