WR3LE Reset & Teardown (FCC ID 2ANDL-WR3LE)

WR3LE User Manual 
TuyaSmartWi-Fi Module 
1. Product Overview
WR3LE 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-Fi network protocol and plenty of software examples.WR 3LE include a ARM CM4F, 
WLAN MAC, 1T1R WLAN, maximum frequency reaches 125MHz, 256K SRAM, 2Mbyte 
flash and various peripheral resources. 
WR3LE 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. 
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:7 GPIO channels, 2 UART, 1 ADC
 Wi-Fi connectivity:
 802.11 B/G/N20/N40
Channel 1 to 11@ 2.4GHz
 Support WPA/WPA
2
Support Smart Config function for both Android and IOS devices
 On-board PCB antenna
 Pass CE, FCC, SRRC certifications
 Operating temperature range: -20℃ to105℃
1.2 Main ApplicationFields 
 Intelligent Building
 Intelligent home, Intelligent household applications
 Healthy devices
 Industrial wireless control
 Baby monitor
 Webcam
 Intelligent bus

WR3LE User Manual 
2. Dimensions and Footprint
2.1Dimensions 
WR3LE has 2 columns of Pins (2*8).The distance between each Pin is2 mm. 
Size of WR3LE: 16 mm (W)×24 mm (L) ×3.3 mm (H) 
2.2 Pin Definition 
Table 1 shows the generalpin attributes of WR3LE 
Table 1. The typical pin definition of WR3LE 
PIN 
NO. 
NAME TYPE DISCREPTION 
1 NC / Dangling don't pick up, in order to compatible with other 
modules 
2 ADC AI ADC，Max5V 
Figure1. dimension Drawing
WR3LE 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 - 105 ℃ 
VCC Working voltage 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 
7 GPIOA_22 I/O GPIOA_22 
8 VCC P （3.3V） 
9 GND P 
10 GPIOA_0 I/O GPIOA_0，HardwarePWM 
11 GPIOA_30 I/O UART_Log_TXD GPIO 
12 GPIOA_19 I/O GPIOA_19 
13 GPIOA_5 I/O GPIOA_5，hardware PWM 
14 GPIOA_12 I/O GPIOA_12，hardware PWM 
15 RXD I/O UART0_RXD 
16 TXD I/O UART0_TXD 
Note: S: Power supply pins; I/O: Digital input or output pins; AI: Analog input. 
3 CHIP_EN I/O 
4 GPIOA_29 I/O UART_Log_RXD GPIO 
5 GPIOA_14 I/O GPIOA_14，hardware PWM 
6 GPIOA_15 I/O GPIOA_15，hardware PWM 
WR3LE User Manual 
3.4 Wi-Fi Receiving Current Consumptions 
Table 
...