WR2L Reset & Teardown (FCC ID 2ANDL-WR2L)

WR2LV1.0.0 User Manual
 Version1.0.02
1. Product Overview
 WR2L is a low power-consuming built-in Wi-Fi module developed by Hangzhou Tuya 
Information Technology Co., Ltd. It consists of a highly integrated radio frequency chip 
(RTL8710BX) and an external flash chip, with a built-in Wi-Fi network protocol stack and robust 
library functions. WR2L also contains a low power-consuming ARM CM4F, a WLAN MAC, a 
1T1R WLAN, and the maximum basic frequency of 62.5 MHz, and is embedded with a 256 KB 
SRAM, a 2 MB flash, and robust peripheral resources. 
WR2L is an RTOS platform that integrates all the function libraries of the Wi-Fi MAC and 
TCP/IP protocols. You can develop built-in Wi-Fi products as required. 
1.1 Features 
Built-in low power-consuming 32-bit CPU functioning as an application processor 
 Working voltage: 3 V to 3.6 V
 Peripherals: five GPIOs
 Wi-Fi connectivity
 802.11 B/G/N20/N40
 Channels [email protected]
 Supports WPA/WPA2 safe modes
 SmartConfig mode (for Android and iOS devices)
 Onboard PCB antenna
 Passing the CE, FCC, and SRRC certification
 Working temperature: –20°C to +105°C
1.2 Major Application Fields 
 Intelligent building
 Intelligent home and household appliances
 Healthcare
 Industrial wireless control
 Baby monitors
 Network camera
 Intelligent bus
2.
Module Interfaces
2.1 Dimensions and Pin Layout

WR2L provides two rows of pins with the distance of 2 mm between every two pins. 
WR2L dimensions: 15 mm (W) x 17.37 mm (L) x 3 mm (H) 
WR2LV1.0.0 User Manual
 Version1.0.03
2.2 Pin definition 
Table 2.1 describes the common pins. 
Table 2.1，WR2L pins description 
No. Symbol I/OType Function 
1 GPIOA_15 I/O GPIOA_15, used for hardware PWM 
2 GPIOA_14 I/O GPIOA_14, used for hardware PWM 
3 GPIOA_5 I/O GPIOA_5, used for hardware PWM 
4 GPIOA_14 I/O GPIOA_19 
5 GPIOA_12 I/O GPIOA_12, used for hardware PWM 
6 GND P Power supply reference ground pin 
7 VD33 P Module power supply pin (3.3 V) 
Note: P indicates power-supply pins and I/O indicates input/output pins. 
3. Electrical Parameters
3.1 Absolute electrical parameters 
Table 3.1,Absolute Parameters

Parameters Description Minimu
m value 
Maximu
m value Unit 
Ts Storage 
temperature –40 125 °C 
VDD Power-supply 
voltage –0.3 3.6 V 
Static electricity voltage 
(human model) 
TAMB – 
25°C
 - 2 kV 
Static electricity voltage 
(machine model)

TAMB – 
25°C
 - 0.5 kV 
3.2 Electrical Conditions 
WR2LV1.0.0 User Manual
 Version1.0.04
Table 3.2 Normal electrical conditions 
Paramet
ers Description Min Typ Max Unit 
Ta Working 
temperature –20 - 105 °C 
VDD Working voltage 3.0 - 3.6 V 
VIL I/O low-level input –0.3 - VDD x 0.25 V 
VIH I/O high-level input VDD x 0.75 - 3.6 V 
VOL I/O low-level output - - VDD x 0.1 V 
VOH I/O high-level 
output VDD x 0.8 - VDD V 
Imax I/O drive current - - 16 mA 
Cpad Input pin 
capacitance - 2 - pF 
3.3 Wi-Fi Transmitting Current Consumptions 
Table 3.3. Wi-Fi TX current consumption 
PARAMETERS MODE RATE Transmittingpower TYPICAL UNIT
IRF 11b 1Mbps +20.09d...