HEWRQU1 Module Datasheet Version: 20220214 Online Version Contents Contents 1 Product overview 2 1.1 Features . 2 1.2 Applications . 2 1.3 Change history . 3 2 Module interfaces 4
. 4 2.1 Dimensions and footprint 2.2 Pin definition . 5
. 7 2.3 Definitions on test pins 3 Electrical parameters 8
. 8 3.1 Absolute electrical parameters
. 8 3.2 Normal working conditions 3.3 TX and RX power consumption . 9
. 9 3.4 Operating current 4 RF parameters 11 4.1 Basic RF features
. 11 4.2 TX performance . 11 4.3 RX performance . 12 5 Antenna 13 5.1 Antenna type . 13 5.2 Interference reduction . 13 5.3 Specifications of antenna connector . 14 6 Packaging information and production instructions 15
. 15 6.1 Mechanical dimensions 6.2 Production instructions
. 15 6.3 Recommended oven temperature curve . 16 6.4 Storage conditions . 17 7 Appendix: Statement 19 I Contents Developed by Tuya, HEWRQU1 is a Wi-Fi module that is suitable for serial communi-
cation in which the level is changed from 5V TTL to 3.3V TTL. It consists of a highly integrated wireless RF chip (RTL 8710BN), an extension chip, and a DC-DC chip. Besides, it has a Wi-Fi network protocol stack and rich library functions inside. It further contains a low-power ARM CM4FCPU, a 2-MB flash memory, and a 256-KB SRAM. 1 / 22 1 Product overview 1 Product overview HEWRQU1 is an RTOS platform that integrates all function libraries of the Wi-Fi MAC and TCP/IP. On the basis of serial communication, you can develop embedded Wi-Fi products as required. 1.1 Features Low-power CPU, which can also function as an application processor The maximum clock rate: 125 MHz Operating voltage: 4.5 to 5.5V Peripheral: 1 UART Wi-Fi connectivity 802.11 b/g/ n_HT20 HT40 Channels 1 to 14@2.4 GHz Support WPA, WPA2, WEP, and TKIP security modes Up to +18 dBm output power in 802.11b mode Support STA, AP, and STA+AP working modes Support SmartConfig and AP network configuration manners for Android and iOS devices Onboard PCB antenna Operating temperature: -20 to 85 1.2 Applications Intelligent buildings Smart household and home appliances Smart socket and light Industrial wireless control 2 / 22 1 Product overview Baby monitor Network camera Intelligent bus 1.3 Change history Update date Updated content Version after update Sep. 29, 2021 This is the first release. V1.0.0 3 / 22 2 Module interfaces 2 Module interfaces 2.1 Dimensions and footprint The dimensions of HEWRQU1 are 42.750.35 mm (L)21.70.35 mm (W) 4.50.15 mm (H). The dimensions of HEWRQU1 are shown below:
4 / 22 2 Module interfaces 2.2 Pin definition Pin number Symbol Type 1 2 3 A_14 A_15 EN I/O I/O P 5 / 22 Function GPIO_14 GPIO_15 Enabling pin (low active) 2 Module interfaces Function GPIO_0. It cannot be pulled up during powering on. GPIO_12 ADC port, the max input voltage 5V GPIO_5 Power supply pin
(3.3V) Power supply reference ground GPIO_19 GPIO_22 UART_Log_TXD
(used to display the internal information of the module) UART_Log_RXD
(used to display the internal information of the module) Power supply reference ground External input voltage (5V) UART0_TXD
(user-side serial port) Pin number Symbol 4 5 6 7 8 9 10 11 12 13 14 15 16 A_0 A_12 ADC A_5 3.3V GND A_19 A_22 Log_TX Type I/O I/O AI I/O P P I/O I/O I/O Log_RX I/O GND VIN TXD P I/O I/O 6 / 22 Pin number Symbol RXD Type I/O GND P 17 18
:::info 2 Module interfaces Function UART0_RXD
(user-side serial port) Power supply reference ground P indicates power supply pins, I/O indicates input/output pins and AI indicates analog input pins. RST is only a reset pin and cannot be used for clearing network configuration information. :::
2.3 Definitions on test pins Pin Number Symbol I/O Type Function
I Used for production tests of the module Test pins are not recommended. 7 / 22 3 Electrical parameters 3 Electrical parameters 3.1 Absolute electrical parameters Parameter Description Minimum value Maximum value Unit Storage temperature Power supply voltage TAMB-25 TAMB-25
-40
Ts VBAT ESD voltage
(human body model) ESD voltage
(machine model) 3.2 Normal working conditions 125 5.5 2 0.5 V KV KV Parameter Description Minimum value Typical value Maximum value Ta VBAT VIL VIH
-20 4.5 Operating tempera-
ture Power supply voltage Low voltage input
-0.3 VCC*0.75 High voltage input
5
8 / 22 85 5.5 VCC*0.25 VCC Unit V V V 3 Electrical parameters Maximum value VCC*0.1 VCC Unit V V 16 mA Parameter Description Minimum value Typical value VOL VOH Imax Low voltage output
High voltage output IO drive current VCC*0.8
3.3 TX and RX power consumption Working Status Transmit Transmit Mode Rate Transmit Power/Re-
ceive Typical Value 11 b 11g 11Mbps
+17dBm 285 54Mbps
+14.5dBm 255 Transmit 11n-HT20 MCS7
+13.5dBm 235 Transmit 11n-HT40 MCS7
+13.5dBm 235 Receive 11b 11Mbps Receive 11g 54Mbps Receive 11n-HT20 MCS7 Receive 11n-HT40 MCS7 Constantly receive Constantly receive Constantly receive Constantly receive 90 90 90 90 Unit mA mA mA mA mA mA mA mA 3.4 Operating current 9 / 22 3 Electrical parameters Maximum value
(Typical value) Average value 88 150 Unit mA 95 245 mA 55 220 mA Operating mode Quick pairing Hotspot Connected Operating status, Ta =
25C The module is in fast pairing state The module is in pairing state through the hotspot and the Wi-Fi indicator always flashes slowly The module is connected to the network and the Wi-Fi indicator is always on The above parameters may vary with firmware functions. 10 / 22 4 RF parameters 4 RF parameters 4.1 Basic RF features Parameter Description Operating frequency 2.412 to 2.483.5 GHz Wi-Fi standard IEEE 802.11 b/g/n (channels 1 to 14) Data transmission rate 11b: 1, 2, 5.5, and 11 (Mbps); 11g: 6, 9, 12, 18, 24, 36, 48, and 54 (Mbps); 11n:
HT20 MCS 0 to 7; HT40 MCS 0 to 7 Antenna type PCB antenna 4.2 TX performance TX performance Parameter Average RF output power, 802.11b CCK Mode 11M Average RF output power, 802.11g OFDM Mode 54M Average RF output power, 802.11n HT20 Mode MCS7 Average RF output power, 802.11n HT40 Mode MCS7 Minimum value Typical value Maximum value
17 14.5 13.5 13.5 11 / 22 Unit dBm dBm dBm dBm 4 RF parameters Minimum value Typical value Maximum value
-20
20 Parameter Frequency error 4.3 RX performance RX sensitivity Minimum value Typical value Maximum value
-90
-73
-70
Parameter PER<8%, RX sensitivity, 802.11b DSSS Mode 11M PER<10%, RX sensitivity, 802.11a OFDM Mode 54M PER<10%, RX sensitivity, 802.11n OFDM Mode HT20-MCS7 Unit ppm Unit dBm dBm dBm 12 / 22 5 Antenna 5 Antenna 5.1 Antenna type HEWRQU1 supports two types of antennas: Onboard PCB antenna and external antenna. By default, the onboard PCB antenna is preferred. 5.2 Interference reduction To ensure optimal Wi-Fi performance when the Wi-Fi module uses a PCB antenna, it is recommended that the antenna be at least 15 mm away from other metal parts. To prevent adverse impact on the radiation performance, avoid copper or traces within the antenna area of the PCB. During layout, you should note: 1. Make sure that there is no substrate medium on or under the printed antenna. 2. Make sure that the area around the printed antenna is far away from copper, to ensure the radiation effect of the antenna to the greatest extent. 13 / 22 5 Antenna 5.3 Specifications of antenna connector There is no connector for the antenna currently. 14 / 22 6 Packaging information and production instructions 6 Packaging information and production instructions 6.1 Mechanical dimensions 6.2 Production instructions Storage conditions for a delivered module are as follows:
The moisture-proof bag must be placed in an environment where the temper-
ature is below 30C and the relative humidity is lower than 70%. The shelf life of a dry-packaged product is 6 months from the date when the product is packaged and sealed.
:::important In the production process, all operators must wear electrostatic rings. During operation, strictly prevent the module from getting wet or dirty. :::
15 / 22 6 Packaging information and production instructions 6.3 Recommended oven temperature curve We mount the PCB with the SMT according to the following temperature curve. The peak temperature is 245C. Refer to IPC/JEDEC standard. Peak Temperature: <245. Number of Times: 2. 16 / 22 6 Packaging information and production instructions 6.4 Storage conditions Specifications of terminal This module adopts the USB2.0 180 sinking-plate straight-leg plug connector. Its specifications are as follows:
17 / 22 6 Packaging information and production instructions Product model MOQ (pcs) HEWRQU1 400 The number of modules per reel The number of reels per carton 200 2 Packing method Honeycomb carton 18 / 22 7 Appendix: Statement 7 Appendix: Statement FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate this equip-
ment.The module is limited to installation in mobile or fixed applications. 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. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, according to part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interfer-ence in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used by the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the inter-
ference by one or more of the following measures:
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncon-
trolled environment. This equipment should be installed and operated with a mini-
mum distance of 20cm between the radiator and your body. Important Note This radio module must not be installed to co-locate and operating simultaneously with other radios in the host system except in accordance with FCC multi-
transmitter product procedures. Additional testing and equipment authorization may be re- quired to operate simultaneously with other radios. The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end-user. 19 / 22 7 Appendix: Statement 7 Appendix: Statement The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the is required for all other modular transmitter installed.The separate approval operating configurations including portable configurations with respect to Part 2.1093 and different antenna configuration. The end-user manual shall include all required regulatory information/warning as shown in this manual, including This product must be installed and operated with a minimum distance of 20 cm between the radiator and user body. This device has got an FCC ID: 2ANDL-HEWRQU1. The final end product must be labeled in a visible area with the following: Contains Transmitter Module FCC ID:
2ANDL- HEWRQU1. This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna. As long as the 2 conditions above are met, further transmitter tests will not be re-
quired. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed. Industry Canada Statement This device complies with Industry Canadas licence-exempt RSSs. Operation is subject to the following two conditions:
(1) This device may not cause interference; and
(2) This device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement."
20 / 22 7 Appendix: Statement Radiation Exposure Statement This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator & your body. Dclaration d'exposition aux radiations:
Cet quipement est conforme aux limites d'exposition aux rayonnements ISED tablies pour un environnement non contrl. Cet quipement doit tre install et utilis avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps. This device is intended only for OEM integrators under the following conditions:
(For module device use) 1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-
product for any additional compliance requirements required with this module installed. Cet appareil est conu uniquement pour les intgrateurs OEM dans les conditions suivantes: (Pour utilisation de dispositif module) 1) L'antenne doit tre installe de telle sorte qu'une distance de 20 cm est respecte entre l'antenne et les utilisateurs, et 2) Le module metteur peut ne pas tre complant avec un autre metteur ou antenne. Tant que les 2 conditions ci-dessus sont remplies, des essais supplmentaires sur l'metteur ne seront pas ncessaires. Toutefois, l'intgrateur OEM est toujours responsable des essais sur son produit final pour toutes exigences de conformit supplmentaires requis pour ce module install. IMPORTANT NOTE:
In the event that these conditions can not be met (for example certain laptop configurations or colocation with another transmitter), then the Canada authorization is no longer considered valid and the IC ID can not be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate Canada authorization. NOTE IMPORTANTE:
Dans le cas o ces conditions ne peuvent tre satisfaites (par exemple pour certaines configurations d'ordinateur portable ou de certaines co-localisation avec un autre metteur), l'autorisation du Canada n'est plus considr comme valide et l'ID IC ne peut pas tre utilis sur le produit final. Dansces 21 / 22 7 Appendix: Statement circonstances, l'intgrateur OEM sera charg de rvaluer le produit final (y compris l'metteur)et l'obtention d'une autorisation distincte au Canada. End Product Labeling This transmitter module is authorized only for use in device where the antenna may be installed such that 20 cm may be maintained between the antenna and users. The final end product must be labeled in a visible area with the following:
Contains IC:23243-HEWRQU1. Plaque signaltique du produit final Ce module metteur est autoris uniquement pour une utilisation dans un dispositif o l'antenne peut tre installe de telle sorte qu'une distance de 20cm peut tre maintenue entre l'antenne et les utilisateurs. Le produit final doit tre tiquet dans un endroit visible avec l'inscription suivante:
"Contient des IC: 23243-HEWRQU1 ". Manual Information To the End User 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 end user manual shall include all required regulatory information/warning as show in this manual. Manuel d'information l'utilisateur final L'intgrateur OEM doit tre conscient de ne pas fournir des informations l'utilisateur final quant la faon d'installer ou de supprimer ce module RF dans le manuel de l'utilisateur du produit final quiintgre ce module. Le manuel de l'utilisateur final doit inclure toutes les informations rglementaires requises et avertissements comme indiqu dans ce manuel. Declaration of Conformity European Notice Hereby, Hangzhou Tuya Information Technology Co., Ltd declares that this WIFI mod-ule product is in compliance with essential requirements and other the Declaration of conformity can be found at http:// www.tuya.com. relevant provi-sions of Directive 2014/53/EC. A copy of EN 300 328 V2.1.1 EN 301 489-1 V2.1.1;
EN 301 489-17 V3.1.1 EN 62311: 2008 EN 60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013 22 / 22