User Manual

FCC ID: 2ANDL-WR6

Users Manual

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FCCID_4260095

                                                                           WR6 Datasheet




                          Tuya Smart Wi-Fi Module

1 Product Overview

WR6 is a low power-consuming built-in Wi-Fi module developed by Hangzhou Tuya Inc. It
consists of a highly integrated RF microchip (W302 12E77H2) and an external flash chip, with a
built-in Wi-Fi network protocol stack and robust library functions. WR6 also contains a low power-
consuming ARM CM4F, a WLAN MAC, a 1T1R WLAN, and the maximum basic frequency of
125 MHz, and is embedded with a 256 KB SRAM, a 2 MB flash, and rich peripheral resources.


WR6 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

  ² Built-in low power-consuming 32-bit CPU functioning as an application processor

  ² Working voltage: 4.5 V to 5.5 V
  ² Peripherals: nine GPIOs, one UART, and one ADC

   ² Wi-Fi connectivity

     l          802.11b/g/n20/n40
     l          Channels 1 to 11@ 2.4 GHz
     l          WPA/WPA2 security mode
     l          Smart network configuration function (forAndroid and iOS devices)
     l          Onboard PCB antenna
     l          Working temperature: –20°C to +85°C




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                                                WR6 Datasheet

      1.2 Applications

        ² Intelligent building
        ² Smart home and household appliances
        ² Healthcare
        ² Industrial wireless control
        ²Baby monitor
        ² Network camera
        ² Intelligent bus




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                                                                              WR6 Datasheet
2 Module Interfaces
2.1 Dimensions and Footprint
WR6 has two rows of pins (2 x 7) with a 2 mm pin pitch.
Dimensions (H x W x D) of WR6 are as follows: 4.8 mm x 37.8 mm x 21.7 mm.
                      Figure 2-1 shows the dimensions of WR6.




 2.2 Pin Definition
 Table 2-1 describes common pins.
                                 Table 2-1 WR6 interface pins
  No.     Symbol       I/O Type                                  Function
   1     A_14             I/O       GPIOA_14
   2     A_15             I/O       GPIOA_15
   3     EN               I/O       External enabled reset pin (active at low level)
  No.     Symbol       I/O Type                                  Function
   4     A_0              I/O       GPIOA_0, which cannot be pulled up during power-on and can
                                    be configured after power-on
   5     A_12             I/O       GPIOA_12
   6     ADC              AI        ADC port, with the maximum output power of 5 V
   7     A_5              I/O       GPIOA_5
   8     3.3 V             P        Module power supply pin (3.3 V)
   9     GND               P        Power supply reference ground pin
  10     A_19             I/O       GPIOA_19
  11     A_22             I/O       GPIOA_22
  12     Log_TX           I/O       UART_Log_TXD (used for printing the module internal
                                    information)
  13     Log_RX           I/O       UART_Log_RXD (used for printing the module internal
                                    information)
  14     GND               P        Power supply reference ground pin
  15     VIN               P        External power input (5 V)
  16     GND               P        Power supply reference ground pin
  17     RXD1             I/O       UART0_RXD (user serial port)
   18    TXD1             I/O      UART0_TXD (user serial port)
Note: P indicates power-supply pins, I/O indicates input/output pins, and AI indicates analog input
pins.
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                                                                                 WR6 Datasheet

3 Electrical Parameters

3.1 Absolute Electrical Parameters

                               Table 3-1 Absolute electrical parameters

          Parameter                         Description           Minimum        Maximum           Unit
                                                                   Value          Value
             Ts                         Storage temperature              –40        +125            °C
            VIN                         Power supply voltage          –0.3            +5.5           V
  Static electricity voltage               TAMB – 25°C                N/A               2           kV
   (human body model)
  Static electricity voltage               TAMB – 25°C                N/A              0.5          kV
      (machine model)

3.2 Electrical Conditions

                                Table 3-2 Normal electrical conditions

Parameter            Description            Minimum            Typical         Maximum            Unit
                                             Value              Value           Value
    Ta         Working temperature              –20              25              +85               °C
   VIN             Working voltage              4.5             5.0              5.5               V
   VIL            I/O low-level input          –0.3             N/A              +0.8              V
   VIH         I/O high-level input            2.47             N/A              3.6               V
   VOL         I/O low-level output            N/A              N/A              0.34              V
   VOH         I/O high-level output           2.64             N/A              3.4               V
   Imax            I/O drive current           N/A              N/A              16                mA
   Cpad        Input pin capacitance           N/A               2               N/A               pF




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                                                                              WR6 Datasheet

   3.3 Wi-Fi TX Power Consumption

                        Table 3-3 TX power consumption during constant emission

             Symbol             Mode            Power           Typical Value          Unit
                 IRF            802.11b        20.15dBm             287                 mA
                 IRF           802.11g         22.30dBm             255                 mA
                 IRF        802.11n BW20       21.30dBm             244                 mA
                 IRF        802.11n BW40       20.70dBm             220                 mA



3.4 Wi-Fi RX Power Consumption

                  Table 3-4 RX power consumption during constant receiving

                Symbol              Mode           Typical Value                Unit
                  IRF             CPU sleep                90                   mA
                  IRF             CPU active            120                     mA



3.5 Working Power Consumption

                                Table 3-5 WR6 operating current

  Working                  Working Status (Ta = 25°C)               Typical       Peak        Unit
   Mode                                                              Value       Value*
EZ mode          The module is in EZ mode, and the Wi-Fi             115          125         mA
                 indicator quickly flashes.
Idle             The module is connected to the network, and          60          209         mA
                 the Wi-Fi indicator is steady on.
Connection       The module is connected to the network, and         118          198         mA
mode             the Wi-Fi indicator is steady on.
Disconnection    The module is disconnected from the network,         34          192         mA
mode             and the Wi-Fi indicator is steady off.


Note: The peak duration is about 5 µs. The preceding parameter values vary depending on the
firmware functions.




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                                                                               WR6 Datasheet

4 RF Features

4.1 Basic RF Features

                                    Table 4-1 Basic RF features

            Parameter                                     Description
       Frequency range          2.412 GHz to 2.462 GHz
        Wi-Fi standard          IEEE 802.11b/g/n20/n40 (channels 1 to 11)
                                802.11b: 1, 2, 5.5, or 11 (Mbit/s)
                                802.11g: 6, 9, 12, 18, 24, 36, 48, or 54 (Mbit/s)
     Data transmission rate
                                802.11n: HT20 MCS0 to MCS7
                                802.11n: HT40 MCS0 to MCS7


            Antenna type        PCB antenna (default)




4.2Wi-Fi RX Sensitivity

                                      Table 4-2 RX sensitivity

                    Parameter                     Minimum          Typical     Maximum         Unit
                                                   Value            Value       Value
     PER < 8%, 802.11b CCK           11 Mbit/s        N/A            –91            N/A        dBm
             mode
       PER < 10%, 802.11g            54 Mbit/s        N/A            –75            N/A        dBm
          OFDM mode
       PER < 10%, 802.11n             MCS7            N/A            –72            N/A        dBm
          OFDM mode




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                                                                          WR6 Datasheet




5 Antenna Information

5.1 Antenna Types

onboard PCB antenna


5.2 Antenna Interference Reduction

To ensure optimal Wi-Fi performance when the module uses an onboard PCB antenna, it is
recommended that the antenna be at least 15 mm away from other metal parts.


The following figures show five common antenna routing solutions. Solutions 1 and 2 have the best
test performance, and the RF performance is the same as that of a single module. If the antenna
must be routed on the PCB due to restrictions, solution 3 is recommended. However, the RF
performance may be attenuated by 1 to 2 dBm. Solution 5 has the poorest RF performance and is
not recommended. In solution 5, the antenna is routed in the PCB frame and RF signals cannot be
transmitted or received properly.




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                                                                          WR6 Datasheet


         PCB antenna
                                                                 PCB antenna




Solution 1: Antenna routed outside the PCB       Solution 2: Antenna routed along the frame
frame                                            edge with carved area below



                PCB antenna

                                                                PCB antenna




Solution 3: Antenna routed along the frame       Solution 4: Antenna routed in the frame with
edge without copper below                        carved area below




                                         PCB antenna




               Solution 5: Antenna routed in the frame with copper or wires below




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                                                                               WR6 Datasheet

6 Packaging Information and Production Instructions
6.1 Production Instructions

Storage conditions of a delivered module are as follows:

1. The anti-moisture bag must be placed in an environment where the temperature is below 30°C
   and the relative humidity is lower than 85%.

2. The shelf life of a dry-packaged product is six months from the date when the product is
   packaged and sealed.


Precautions:

1. Throughout the production process, each involved operator must wear an ESD wrist strap.

2. During the operation, strictly protect the module from water and strains.




 6.2 Recommended Oven Temperature Curve




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                                                                             WR6 Datasheet


 Regulatory Module Integration Instructions
 This device complies with part 15.247 of the FCC Rules.
 The OEM integrator has to be aware not to provide information to the end user regarding how to install or
 remove this RF module in the user’s manual of the end product which integrates this module.
 The antenna is PCB Antenna and maximum gain is 2.5dBi .
 This module has been granted modular approval for mobile applications. OEM integrators
 for host products may use the module in their final products without additional FCC certification if they
 meet the following conditions. Otherwise, additional FCC approvals must be obtained.

The host product with the module installed must be evaluated for simultaneous
transmission requirements.
The user’s manual for the host product must clearly indicate the operating requirements
and conditions that must be observed to ensure compliance with current FCC RF exposure guidelines.
To comply with FCC regulations limiting both maximum RF output power and human
exposure to RF radiation, use this module only with the included onboard antenna.
The final host / module combination may also 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.

FC Statement
FCC
Any Changes or modifications not expressly approved by the party responsible for compliance could
void the user’s 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-WR6 ”,or “Contains FCC ID: 2ANDL-WR6 ”, Any similar wording that
expresses the same meaning may be used.




     Tuya Inc.                                                                       Version 1.0.2



Document Created: 2019-04-30 22:02:49
Document Modified: 2019-04-30 22:02:49

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