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WRD2L Datasheet

Hangzhou Tuya Information Technology Co., Ltd.

1

V1.0.0

1. Product Overview

WRD2L is a low-power embedded Wi-Fi module that Tuya has developed. It consists of a
highly integrated RF chip (RDA5981BM) and several peripheral components, with an
embedded Wi-Fi network protocol stack and robust library functions. WRD2L is
embedded with a low-power Arm Cortex-M4 MCU, 2 MB flash memory, and 384 KB static
random-access memory (SRAM), and has extensive peripherals.

WRD2L is an RTOS platform that integrates all function libraries of the Wi-Fi MAC and
TCP/IP protocols. You can develop embedded Wi-Fi products as required.

1.1 Features

Embedded low-power 32-bit CPU, which can also function as an application
processor

Dominant frequency: 160 MHz

Working voltage: 3.0 V to 3.6 V

Peripherals: five GPIOs and one universal asynchronous receiver/transmitter (UART)

Wi-Fi connectivity

802.11b/g/n

2.4 GHz WiFi

WPA and WPA2 security modes

Up to +20±3dBm output power

STA, AP, and STA+AP working modes

Smart and AP network configuration modes for Android and iOS devices

Onboard PCB antenna with a gain of 2.0 dBi

Tuya WRD2L Wi-Fi Module

No.: 0000000004

Date: 2019-07-26

Product

Manual

Version: 1.0.0

Global Intelligent Platform

Содержание WRD2L

Страница 1: ...s all function libraries of the Wi Fi MAC and TCP IP protocols You can develop embedded Wi Fi products as required 1 1 Features Embedded low power 32 bit CPU which can also function as an application...

Страница 2: ...ation Technology Co Ltd 2 V1 0 0 Working temperature 40 C to 105 C 1 2 Applications Intelligent building Smart household and home appliances Smart socket and light Industrial wireless control Baby mon...

Страница 3: ...WRD2L Datasheet Hangzhou Tuya Information Technology Co Ltd 3 V1 0 0 Change History No Date Change Description Version After Change 1 2019 09 20 This is the first release 1 0 0...

Страница 4: ...ectrical Conditions 8 3 3 RF Current Consumption 9 3 4 Working Current 9 4 RF Features 10 4 1 Basic RF Features 10 4 2 TX Performance 10 4 3 RX Performance 11 5 Antenna Information 11 5 1 Antenna Type...

Страница 5: ...transmission and receiving 9 Table 3 4 WRD2L working current 9 Table 4 1 Basic RF features 10 Table 4 2 Performance during constant transmission 10 Table 4 3 RX sensitivity 11 Figures Figure 1 1 WRD2...

Страница 6: ...5 0 35 mm Figure 2 1 shows the WRD2L front and rear views Figure 2 1 WRD2L front and rear views 2 2 Interface Pin Definition Table 2 1 WRD2L interface pins Pin No Symbol I O Type Function 1 GPIO25 P H...

Страница 7: ...d pin 7 3V3 P Power supply pin 3 3 V Note P indicates power supply pins and I O indicates input output pins 2 3 Test Pin Definition Table 2 2 WRD2L test pins Pin No Symbol I O Type Function N A GND P...

Страница 8: ...3 0 3 6 V Static electricity voltage human body model Tamb 25 C N A 2 kV Static electricity voltage machine model Tamb 25 C N A 0 5 kV 3 2 Electrical Conditions Table 3 2 Normal electrical conditions...

Страница 9: ...um Value Unit Mode Rate TX Power Receiving TX 802 11b 11 Mbit s 17 3 dBm 200 260 mA 802 11g 54 Mbit s 20 3 dBm 170 215 mA 802 11n MCS7 20 3 dBm 166 200 mA RX 802 11b 11 Mbit s Constant receiving 65 80...

Страница 10: ...teady off 14 5 18 mA 4 RF Features 4 1 Basic RF Features Table 4 1 Basic RF features Parameter Description Frequency band 2 4GHz Wi Fi standard IEEE 802 11b g n Data transmission rate 802 11b 1 2 5 5...

Страница 11: ...nce Table 4 3 RX sensitivity Parameter Minimum Value Typical Value Maximum Value Unit PER 8 802 11b CCK mode 11 Mbit s N A 83 N A dBm PER 10 802 11g OFDM mode 54 Mbit s N A 72 N A dBm PER 10 802 11n O...

Страница 12: ...copper or traces along the antenna area on the PCB For details about the onboard PCB antenna area on WRD2L see Figure 6 1 6 Packaging Information and Production Instructions 6 1 Mechanical Dimensions...

Страница 13: ...Ltd 13 V1 0 0 6 2 Recommended Pin figure Figure 6 3 WRD2L pins WRD2L can be mounted onto a PCB by using an SMT placement machine or connected to the PCB through a pin header Figure 6 4 shows the pin h...

Страница 14: ...vacuum pack the module again Bake the module before mounting the module onto the PCB 1 SMT placement equipment i Reflow soldering machine ii Automated optical inspection AOI equipment iii Nozzle with...

Страница 15: ...1 Baking temperature 125 5 C 2 Alarm temperature 130 C 3 SMT placement ready temperature after natural cooling 36 C 4 Number of drying times 1 5 Rebaking condition The module is not soldered within 12...

Страница 16: ...chnology Co Ltd 16 V1 0 0 batches for visual inspection and AOI 6 4 Recommended Oven Temperature Curve Perform SMT placement based on the following reflow oven temperature curve The highest temperatur...

Страница 17: ...gy Co Ltd 17 V1 0 0 6 5 Storage Conditions 7 MOQ and Packing Information MOQ and packing information Product Model MOQ Packing Method Number of Modules in Each Reel Pack Number of Reel Packs in Each B...

Страница 18: ...for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment g...

Страница 19: ...duct must be labeled in a visible area with the following Contains Transmitter Module 2ANDL WRD2L This radio module must not be installed to co locate and operating simultaneously with other radios in...

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