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 Built-in low power-consuming 32-bit CPU functioning as an application processor Working voltage: 4.5 V to 5.5 V Peripherals: nine GPIOs, one UART, and one ADC Wi-Fi connectivity l l l l l l 802.11b/g/n20/n40 Channels 1 to 11@ 2.4 GHz WPA/WPA2 security mode Smart network configuration function (for Android and iOS devices) Onboard PCB antenna temperature:
Working 20C to +85C Tuya Inc. Version 1.0.2 WR6 Datasheet 1.2 Applications Intelligent building Smart home and household appliances Healthcare Industrial wireless control Baby monitor Network camera Intelligent bus Tuya Inc. Version 1.0.2 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. No. 1 2 3 No. 4 Symbol A_14 A_15 EN Symbol A_0 A_12 5 ADC 6 A_5 7 3.3 V 8 GND 9 10 A_19 11 A_22 12 Log_TX 13 Log_RX 14 GND 15 VIN 16 GND RXD1 17 18 TXD1 Table 2-1 WR6 interface pins I/O Type Function I/O I/O I/O GPIOA_14 GPIOA_15 External enabled reset pin (active at low level) I/O Type Function I/O I/O AI I/O P P I/O I/O I/O I/O P P P I/O I/O GPIOA_0, which cannot be pulled up during power-on and can be configured after power-on GPIOA_12 ADC port, with the maximum output power of 5 V GPIOA_5 Module power supply pin (3.3 V) Power supply reference ground pin GPIOA_19 GPIOA_22 UART_Log_TXD (used for printing the module internal information) UART_Log_RXD (used for printing the module internal information) Power supply reference ground pin External power input (5 V) Power supply reference ground pin UART0_RXD (user serial port) UART0_TXD (user serial port) Note: P indicates power-supply pins, I/O indicates input/output pins, and AI indicates analog input pins. Tuya Inc. Version 1.0.2 WR6 Datasheet 3 Electrical Parameters 3.1 Absolute Electrical Parameters Table 3-1 Absolute electrical parameters Parameter Description Minimum Maximum Unit Ts VIN Static electricity voltage
(human body model) Static electricity voltage
(machine model) Storage temperature Power supply voltage TAMB 25C Value 40 0.3 N/A Value
+125
+5.5 2 TAMB 25C N/A 0.5 C V kV kV 3.2 Electrical Conditions Table 3-2 Normal electrical conditions Parameter Description Minimum Ta VIN VIL VIH VOL VOH Imax Cpad Working temperature Working voltage I/O low-level input I/O high-level input I/O low-level output I/O high-level output I/O drive current Input pin capacitance Value 20 4.5 0.3 2.47 N/A 2.64 N/A N/A Typical Value 25 5.0 N/A N/A N/A N/A N/A 2 Maximum Unit Value
+85 5.5
+0.8 3.6 0.34 3.4 16 N/A C V V V V V mA pF Tuya Inc. Version 1.0.2 WR6 Datasheet 3.3 Wi-Fi TX Power Consumption Table 3-3 TX power consumption during constant emission Symbol IRF IRF IRF IRF Mode 802.11b 802.11g 802.11n BW20 802.11n BW40 Power 20.15dBm 22.30dBm 21.30dBm 20.70dBm Typical Value 287 255 244 220 Unit mA mA mA mA 3.4 Wi-Fi RX Power Consumption Table 3-4 RX power consumption during constant receiving Symbol IRF IRF Mode CPU sleep CPU active Typical Value 90 120 Unit mA mA 3.5 Working Power Consumption Table 3-5 WR6 operating current Working Mode EZ mode Idle Connection mode Disconnection mode Working Status (Ta = 25C) The module is in EZ mode, and the Wi-Fi indicator quickly flashes. The module is connected to the network, and the Wi-Fi indicator is steady on. The module is connected to the network, and the Wi-Fi indicator is steady on. The module is disconnected from the network, and the Wi-Fi indicator is steady off. Typical Value 115 Peak Value*
125 60 118 34 209 198 192 Unit mA mA mA mA Note: The peak duration is about 5 s. The preceding parameter values vary depending on the firmware functions. Tuya Inc. Version 1.0.2 WR6 Datasheet 4 RF Features 4.1 Basic RF Features Parameter Frequency range Wi-Fi standard Data transmission rate Table 4-1 Basic RF features Description 2.412 GHz to 2.462 GHz 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) 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 PER < 8%, 802.11b CCK 11 Mbit/s mode PER < 10%, 802.11g 54 Mbit/s OFDM mode PER < 10%, 802.11n MCS7 OFDM mode Minimum Value N/A Typical Value 91 Maximum Unit Value N/A dBm N/A N/A 75 72 N/A dBm N/A dBm Tuya Inc. Version 1.0.2 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. Tuya Inc. Version 1.0.2 WR6 Datasheet PCB antenna PCB antenna Solution 1: Antenna routed outside the PCB frame Solution 2: Antenna routed along the frame edge with carved area below PCB antenna PCB antenna Solution 3: Antenna routed along the frame edge without copper below Solution 4: Antenna routed in the frame with carved area below PCB antenna Solution 5: Antenna routed in the frame with copper or wires below Tuya Inc. Version 1.0.2 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 30C 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 Tuya Inc. Version 1.0.2 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 users 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 users 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. FCC Statement FC 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 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. Radiation Exposure Statement:
Tuya Inc. Version 1.0.2