Hangzhou Tuya Information Technology WR2L User Manual
WR2LV1.0.0 Datasheet
Version1.0.0
2
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 1-11@2.4GHz
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 Datasheet
Version1.0.0
3
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)
P indicates power-supply pins and I/O indicates input/output pins.
Note:
3. Electrical Parameters
3.1 Absolute electrical parameters
Table 3.1,Absolute Parameters
Parameters Description
Ts
VDD
Static electricity voltage
(human model)
Static electricity voltage
(machine model)
temperature
Power-supply
TAMB –
TAMB –
3.2 Electrical Conditions
Storage
voltage
25°C
25°C
Minimu
m value
–40 125 °C
–0.3 3.6 V
- 2 kV
- 0.5 kV
Maximu
m value
Unit
WR2LV1.0.0 Datasheet
Version1.0.0
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Table 3.2 Normal electrical conditions
Paramet
ers
Ta
Description Min Typ Max Unit
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
PARAMET E R S MODE RATE Trans m i ttingpower TYPICAL UNIT
IRF 11b 1Mbps
IRF 11g 6Mbp
IRF
IRF
n-HT20
11
11n-HT40
MCS0 +22.06dBm 244 mA
MCS0
s
+20.09dBm
+23.48dBm
+21.35dBm
287 mA
255 mA
220
mA
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