WR1 Wi-Fi Module User Manual

WR1DATASHEET Tuya SmartWi-Fi Module 1. Product Overview WR1 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 12E75M2 and some extra flash that has been programed with Wi-Fi network protocol and plenty of software examples.WR1 include a ARM CM4F, WLAN MAC, 1T1R WLAN, maximum frequency reaches 125MHz, 256K SRAM, 1M byte flash and various peripheral resources. WR1 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. Figure 1 shows the block diagram of the WR1. Figure 1. The block diagram of the WR1 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: 3V to 3.6V Peripherals: 6 GPIO channels, 2 UART, 1 ADC Wi-Fi connectivity:

802.11 B/G/N20/N40 Channel 1 to 11 @ 2.4GHz Support WPA/WPA2

+21.10dBm output power in 802.11b mode WR1DATASHEET Support SmartConfig function for both Android and IOS devices On-board PCB antenna Operating temperature range: -20 to 105 1.2 Main Application Fields Intelligent Building Intelligent home, Intelligent household applications Healthy devices Industrial wireless control Baby monitor Webcam Intelligent bus WR1DATASHEET 2. Dimensions and Footprint 2.1Dimensions WR1 has 2 columns of Pins (2*9).The distance between each Pin is 1.5 mm. Size of WR1: 18mm(W)*23.5mm(L)*3.1mm(H) Figure 2 shows the dimensions of WR1. Figure 2. The dimensions of WR1 2.2 Pin Definition Table 1 shows the generalpin attributes of WR1 Table 1. The typical pin definition of WR1 PIN NO. 1 2 3 4 5 6 7 NAME VCC UART0_TX D TYP E P I/O UART0_RX I/O D VD33 GND GPIOA_14 GPIOA_15 P P I/O I/O DISCREPTION Supplyvoltage(3.3V) UART0_TXD UART0_RXD Supplyvoltage(3.3V) Ground GPIOA_14 GPIOA_15 8 9 10 11 12 13 14 15 16 17 18 LOG_TXD GPIOA_0 GPIOA_5 LOG_RXD GPIOA_19 GPIOA_22 GND GND CHIP_EN ADC GND I/O I/O I/O I/O I/O I/O P P I/O AI P WR1DATASHEET UART_Log_TXD(usedtoprintmodule'sinternalinformation) GPIOA_0,cannotbepullupwhilebooting,canbeusedasGPIO whileinnormalworkingmode GPIOA_5 UART_Log_RXD(usedtoprintmodule'sinternalinformation) GPIOA_19 GPIOA_22 Ground Ground Externalresetsingal(lowleveleffects) ADCterminal(input5Vmaximally) Ground Note: S: Power supply pins; I/O: Digital input or output pins; AI: Analog input. WR1DATASHEET 3. Electrical Characteristics 3.1 Absolute Maximum Ratings Table 3.1. Absolute Maximum Ratings DESCRIPTION Storagetemperature Supplyvoltage TAMB25 MIN 20 0.3 MAX 105 3.6 2 UNIT V KV TAMB25 0.5 KV PARAMETERS Ts VCC 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 105 3.6 VCC*0.25 VCC VCC*0.1 VCC 16 2 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 n-HT20 11 11n-HT40 RATE 1Mbps 6Mbps MCS0 MCS0

+21.10dBm

+19.97dBm

+20.09dBm

+20.19dBm TYPICAL 287 255 244 220 UNIT mA mA mA mA WR1DATASHEET 3.4 Wi-Fi Receiving Current Consumptions Table 3.4. Wi-Fi RX currentconsumption PARAMETERS IRF IRF MODE CPUsleep CPUactive TYPICAL 90 120 UNIT mA mA 3.5 Working Mode Current Consumptions Table 3.5. The module working currentcon sumption WORKMODE ATTA=25 EZMode WR1isunderEZparingmode,WiFiindicator lightflashesquickly TYPICAL MAX* UNIT 121.8 141 mA StandbyMode WR1isconnected,WiFiindicatorlightison 52 OperationMode WR1isconnected,WiFiindicatorlightison Disconnection Mode WR1isdisconnected,WiFiindicatorlightisoff 180 46 Note: peak continuous time is about 5us. 125 312 120 mA mA mA The parameter shown above will vary dependingon different firmware functions. 4. WLAN Radio Specification 4.1 Basic Radio Frequency Characteristics Table 41.Basic Radio frequency characteristics PARAMETERS Frequencyband WiFistandard Datatransmittingrate Antennatype DESCRIPTION 2412MHz-2462MHz IEEE802.11n20/n40/g/b(Terminal111) 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 Transmitting Power Table 4.2. Wi-Fi transmitting power WR1DATASHEET PARAMETERS RFaverageoutputpower,802.11bCCKMode 1M 6M RFaverageoutputpower,802.11gOFDMMode RFaverageoutputpower,802.11n20OFDMMode MCS0 RFaverageoutputpower,802.11n40OFDMMode MCS0 TheFrequencyerror MIN 10 4.3Wi-Fi Receiving Sensitivity Table 4.3. Wi-Fi Receiving sensitivity PARAMETERS PER<8%,Receivingsensitivity,802.11bCCKMode PER<10%,Receivingsensitivity,802.11gOFDMMode PER<10%,Receivingsensitivity,802.11nOFDMMode MCS0 1M 6M MIN TYPICAL MAX UNI T dBm dBm dBm dBm ppm 21.10 19.97 20.09 20.19 10 TYPICAL MAX UNI T dBm dBm dBm 91 75 72 WR1DATASHEET 5. Antenna Information 5.1 Antenna Type Antenna can be connectedusing On-board PCB antenna Figure 5.1. Resistor definition for on-board PCB antenna Figure 5.2. Resistor definition for external antenna 5.2 Antenna Interference While using the On-board PCBantenna, 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. WR1DATASHEET 6. Packaging Information And Production Guide 6.1 Mechanical Dimensions Figure 6.1. Top view of the module 6.2PCB Recommended Package WR1DATASHEET 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 withtemperature< 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 DrawingRecommended furnace temperature curve WR1DATASHEET Figure A.1. The application schematic design of the module 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-WR1,or Contains FCC ID:2ANDL-WR1, Any similar wording that expresses the same meaning may be used.