WR5E Reset & Teardown (FCC ID 2ANDL-WR5E)

WR5E User Manual 
TuyaSmartWi-Fi Module 
1. Product Overview
WR5E is a low power consumption module with built-in Wi-Fi connectivity solution 
designed by Hangzhou Tuya Information 
Technology Co., Ltd. The Wi-Fi Module consists 
of a highly integrated wireless radio chip RTL8710BX and some extra flash that has been 
programed with Wi-F i network protocol and plenty of software examples.WR5E include a 
ARM CM4F, WLAN MAC, 1T1R WLAN, maximum frequency reaches 125MHz, 256K 
SRAM, 1M byte flash and various per ipheral resources. 
WR5E is a RTOS platfor
m, 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. 
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:9 GPIO channels, 1 UART, 1 ADC
 Wi-Fi connectivity:
 802.11 B/G/N20/N40
Channel 1 to 11 @ 2.4GHz
 Support WPA/WP
A2
Support Smart Config function for both Android and IOS devices
 On-board PCB ant
enna
 Pass CE, FCC, SRRC certifications
Operating temperature range: -20℃ to 85℃
1.2 Main ApplicationFields 
 Intelligent Building
 Intelligent home, Intelligent household applications
 Healthy devices
 Industrial wireless control
 Baby monitor
 Webcam
 Intelligent bus

WR5E User Manual 
2. Dimensions and Footprint
2.1Dimensions 
WR5E has 2 columns of Pins (2*8).The distance between each Pin is2 mm. 
Size of WR5E: （16±0.25） mm (W)×（24.74±0.25） mm (L) ×（3.6±0.1） mm (H) 
2.2 Pin Definition 
Table 1 shows the generalpin attributes of WR5E 
Table 1. The typical pin definition of WR5E 
PIN 
NO. 
NAME TYPE DISCREPTION 
1 GPIOA_23 I/O UART0_TXD 
2 GPIOA_12 I/O GPIOA_12 
3 GPIOA_18 I/O UART0_RXD 
4 GPIOA_14 I/O GPIOA_14 
5 GND P 
6 GPIOA_22 I/O GPIOA_22 
7 VD33 P 3.3V） 
8 GPIOA_30 I/O UART_Log_TXD 
9 GPIOA_0 I/O GPIOA_0 
10 GPIOA_5 I/O GPIOA_5 
11 GPIOA_15 I/O GPIOA_15 
12 GPIOA_19 I/O GPIOA_19 
13 GPIOA_29 I/O UART_Log_RXD 
14 EN I/O 
15 ADC AI ADC，Max5V 
Note: S: Pow
er supply pins; I/O: Digital input or output pins; AI: Analog input. 
WR5E User Manual 
3. Electrical Characteristics
3.1 Absolute Maximum Ratings 
Table 3.1. Absolute Maximum Ratings 
PARAMETERS DESCRIPTION MIN MAX UNIT 
Ts Storage temperature -40 125 ℃ 
VCC 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 
3.2 Electrical Conditions 
Table 3.2. Electrical Conditions 
PARAMETERS DESCRIPTION MIN TYPICAL MAX UNIT 
Ta Working temperature -20 - 85 ℃ 
VCC Working voltage 3 3.3 3.6 V 
VIL IO low level input -0.3 - VDD*0.25 V 
VIH IO high level input VDD*0.75 - VDD V 
VOL IO low level output - - VDD*0.1 V 
VoH IO high level output VDD*0.8 - V V 
Imax IO drive current - - 16 mA 
Cpad Input capacitor - 2 - pF 
WR5E User Manual 
3.3 Wi-Fi Receiving Current Consumptions 
Table 3.
3. Wi-Fi RX current consumption 
PARAMETERS MODE ...