User's Manual

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WR2LV1.0.0 User Manual

Version1.0.0

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

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)

Summary of content (11 pages)

PAGE 1
WR2LV1.0.0 User Manual 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.
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WR2LV1.0.0 User Manual 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.
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WR2LV1.0.0 User Manual 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.
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WR2LV1.0.0 User Manual 3.4 Wi-Fi RX power consumption Table 3.4 RX power during constant receiving 3.5 Symbol Mode Typ Unit IRF CPU sleep 90 mA IRF CPU active 120 mA Power consumption in operating mode Table 3.5, Module operating current Operation Mode Operating condition, TA=25℃ Typ Peak Unit EZ mode The module is in the EZ state and the Wi-Fi indicator fast flashes. 115 125 mA Idle mode The module is in the connected state and the Wi-Fi indicator is steady on.
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WR2LV1.0.0 User Manual 4. RF Characteristics 4.1 Basic RF characteristics Table 4.1,Basic RF characteristics Parameter Description Frequency band 2.412 GHz to 2.462 GHz Wi-Fi standard IEEE 802.11b/g/n (channels 1 to 11) Data transmission rate 11b: 1, 2, 5.5, 11 (Mbit/s) 11g: 6, 9, 12, 18, 24, 36, 48, 54 (Mbit/s) 11n: HT20 MCS0 to MCS7 11n: HT40 MCS0 to MCS7 Antenna type PCB antenna 4.2Wi-Fi RX sensitivity Table 4.3,RX Sensitivity Parameter PER < 8%, RX sensitivity, 802.
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WR2LV1.0.0 User Manual 5.Antenna Information 5.1 Antenna type Only the onboard PCB antenna is used. 5.2 Antenna interference reduction When using an onboard PCB antenna on a Wi-Fi module, make sure that the antenna on the module is at least 15 mm away from other metal parts to ensure optimal wireless performance. 6.Packaging information and production guidance 6.1 Production Instructions Storage conditions of a delivered module are as follows: 1.
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WR2LV1.0.0 User Manual Regulatory Module Integration Instructions 2.2 List of applicable FCC rules This device complies with part 15.247 of the FCC Rules. 2.3 Summarize the specific operational use conditions This module can be used in household electrical appliances as well as lighting equipments. The input voltage to the module should be nominally 3.0 to 3.6V VDC ,typical value 3.3VDC and the ambient temperature of the module should not exceed 105℃.
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WR2LV1.0.0 User Manual 2.8 Label and compliance information The outside of final products that contains this module device must display a label referring to the enclosed module. This exterior label can use wording such as: “Contains Transmitter Module FCC ID: 2ANDL-WR2L ”,or “Contains FCC ID: 2ANDL-WR2L ”, Any similar wording that expresses the same meaning may be used. 2.
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WR2LV1.0.0 User Manual all the applicable individual technical rules as well as to the general conditions of operation in Sections 15.5, 15.15, and 15.29 to not cause interference. The operator of the host product will be obligated to stop operating the device until the interference has been corrected Below are steps for on test modes： tx_contin_en 1 wifitxout // return：wifi tx continuous test! < parameter 1> < parameter 2> < parameter 3> < parameter 1>：Send channel option and allowed number is 1~11.
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0x3 cmdstop 11M 0xe 18M 0x13 26M / MCS3 0x9 24M 0x14 39M / MCS4 0xd 36M 0x15 52M / MCS5 0x8 48M 0x16 58.5M / MCS6 0xc 54M 0x17 65M / MCS7 // Stop sending data package command 2.10 Additional testing, Part 15 subpart B disclaimer The final host / module combination need to be evaluated against the FCC Part 15B criteria for unintentional radiators in order to be properly authorized for operation as a Part 15 digital device.
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WR2LV1.0.0 User Manual Operating the host product When testing the host product, all the transmitters must be operating.The transmitters can be enabled by using publicly-available drivers and turned on, so the transmitters are active. In certain conditions it might be appropriate to use a technology-specific call box (test set) where accessory devices or drivers are not available.