submitted | available | document details (if available) | source link |
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October 23 2018 | October 23 2018 |
various | User Manual | Users Manual | 387.31 KiB | October 23 2018 |
WR2DATASHEET TuyaSmart Wi-Fi Module 1. Product Overview WR2 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 W302 12E77H2 and some extra flash that has been programmed with Wi-Fi network protocol and plenty of software examples.WR2 include a ARM CM4F, WLAN MAC, 1T1R WLAN, maximum frequency reaches 125MHz, 256K SRAM, 1M byte flash and various peripheral resources. WR2 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: 3.3V DC Peripherals: 5 GPIO channels, 1 UART, 1 ADC Wi-Fi connectivity:
802.11 B/G/N20/N40 Channel 1 to 11@ 2.4GHz Support WPA/WPA2
+20.11dBm output power in 802.11b mode Support SmartConfig function for both Android and IOS devices WR2DATASHEET On-board PCB antenna Operating temperature range: -20 to 85 1.2 Main Application Fields Intelligent Building Intelligent home, Intelligent household applications Healthy devices Industrial wireless control Baby monitor Webcam Intelligent bus WR2DATASHEET 2. Dimensions and Footprint 2.1Dimensions WR2 has 2 columns of Pins. The distance between each Pin is 2 mm. Size of WR2: 15mm(W)*18mm(L)*3.3mm(H) Figure 2 shows the dimensions of WR2. Figure 2. The dimensions of WR2 2.2 Pin Definition Table 1 shows the general pin attributes of WR2 Table 2.1 The typical pin definition of WR2 NAME TYPE DISCREPTION PIN NO. 1 2 3 4 5 6 7 8 9 10 VD33 GPIOA_12 GND GPIOA_0 GPIOA_18 GPIOA_5 GPIOA_23 ADC GPIOA_14 CHIP_EN Supplyvoltage(3.3V) P I/O GPIOA_12 P I/O GPIOA_0,cannotbepullupwhilebooting,canbeusedasGPIO Ground whileinnormalworkingmode I/O UART0_RXD I/O GPIOA_5 I/O UART0_TXD AI I/O GPIOA_14 I/O ADCterminal(input5Vmaximally) Externalresetsignal(lowleveleffects) WR2DATASHEET 11 GPIOA_15 I/O GPIOA_15 Note: S: Power supply pins; I/O: Digital input or output pins; AI: Analog input. WR2DATASHEET 3. Electrical Characteristics 3.1 Absolute Maximum Ratings Table 3.1 Absolute Maximum Ratings DESCRIPTION Storagetemperature Supplyvoltage TAMB25 TAMB25 MIN 40 0.3 MAX 105 3.6 2 UNIT V KV 0.5 KV PARAMETERS Ts VDD Staticelectricityvoltage
(humanmodel) Staticelectricityvoltage
(machinemodel) 3.2 Electrical Conditions Table 3.2. Electrical Conditions PARAMETERS DESCRIPTION Ta VCC VIL VIH VOL VoH Imax Cpad Workingtemperature Workingvoltage IOlowlevelinput IOhighlevelinput IOlowleveloutput IOhighleveloutput IOdrivecurrent Inputcapacitor MIN 20 3 0.3 VCC*0.75 VCC*0.8 TYPICAL MAX 2 85 3.6 VCC*0.25 VCC VCC*0.1 VCC 16 UNIT V V V V V mA pF 3.3 Wi-Fi Transmitting Current Consumptions Table 3.3. Wi-Fi TX current consumption Transmittingpower PARAMETERS IRF IRF IRF IRF MODE 11b 11g 11nHT20 11nHT40 RATE 1Mbps 6Mbps MCS0 MCS0
+20.11dBm
+20.81dBm
+20.29dBm
+19.09dBm TYPICAL 287 255 244 220 UNIT mA mA mA mA WR2DATASHEET 3.4 Wi-Fi Receiving Current Consumptions Table 3.4. Wi-Fi RX current consumption TYPICAL MODE PARAMETERS IRF IRF CPUsleep CPUactive 90 120 UNIT mA mA 3.5 Working Mode CurrentConsumptions WORKMODE ATTA=25 TYPICAL MAX* UNIT Table 3.5 The module working current consumption EZMode WR2isunderEZparingmode,WiFiindicator lightflashesquickly StandbyMode WR2isconnected,WiFiindicatorlightison OperationMode WR2isconnected,WiFiindicatorlightison Disconnection Mode WR2isdisconnected,WiFiindicatorlightisoff Note: peak continuous time is about 5us. 115 50 120 35 130 mA 110 mA 265 mA 90 mA The parameter shown above will vary depending on different firmware functions. WR2DATASHEET 4. WLAN Radio Specification 4.1 Basic Radio Frequency Characteristics Table 41.Basic Radio frequency characteristics PARAMETERS Frequencyband WiFistandard Datatransmittingrate Antennatype DESCRIPTION 2.412GHz to 2.462GHz IEEE 802.11n20/g/b (Terminal 1-11),802.11n40( Terminal 1-7) 11b:1,2,5.5,11(Mbps) 11g:6,9,12,18,24,36,48,54(Mbps) 11n:HT20,MCS0~7 11n:HT40,MCS0~7 OnboardPCBAntenna 4.2Wi-Fi Receiving Sensitivity Table 4.2. Wi-Fi Receiving sensitivity PARAMETERS 11M PER<8%,Receivingsensitivity,802.11bCCKMode PER<10%,Receivingsensitivity,802.11gOFDMMode 54M PER<10%,Receivingsensitivity,802.11nOFDMMode MCS7 MIN TYPICAL MAX UNI T dBm dBm dBm 91 75 72 WR2DATASHEET 5. Antenna Information 5.1 Antenna Type Antenna can be connected using On-board PCB antenna by default. 5.2 Reduce Antenna Interference While using the On-board PCB antenna, in order to have the best Wi-Fi performance, its recommended to keep a minimum15mm distance between the antenna part and the other metal pieces. Users own PCBA design is recommended NOT to pass any wire, NOT do copper pour under the region of the modules antenna, to avoid interferences. 6. Packaging Information And Production Guide 6.1 Mechanical Dimensions Figure 6.1 Top view of the module 6.2PCBRecommended Package Figure 6.2 PCB schematic Drawing WR2DATASHEET 6.3 Production Guide The storage for the delivered module should meet the following condition:
1. The anti-moisture bag should be kept in the environment with temperature< 30 and humidity< 85% RH. 2. The expiration date is 6 months since the dry packaging products was sealed. Cautions:
1. All the operators should wear electrostatic ringin the whole process of production. 2. While operating, water and dirt should not have any contact with the modules. 6.4 Recommended furnace temperature curve Figure 6.4. PCB Package Drawing Recommended furnace temperature curve WR2DATASHEET FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation. FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. FCC Label Instructions:
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-WR2,or Contains FCC ID:2ANDL-WR2, Any similar wording that expresses the same meaning may be used. Hereby,HangzhouTuyaInformationTechnologyCo.,Ltd,declaresthatthisWiFiModuleis In compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU. Thisequipmentshouldbeinstalledandoperatedwithaminimumdistanceof20cmbetweenthe radiatorandyourbody. Environmentfriendlydisposal Youcanhelpprotecttheenvironment!
Pleaseremembertorespectthelocalregulations:handin the nonworking electrical equipments to an appropriate wastedisposalcentre.
This product uses the FCC Data API but is not endorsed or certified by the FCC