WBR2L Module Datasheet Device Development > Cloud Module > Wi-Fi & BLE Dual Mode Module Version: 20200925 Online Version
Contents Contents 1 Product overview 1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 1 2 Change history 3 3 Module interfaces 3.1 Dimensions and footprint . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Pin definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 3 4 Electrical parameters 4.1 Absolute electrical parameters 4.2 Working conditions . . . . . . 4.
1 PRODUCT OVERVIEW 1 Product overview WBR2L is a low-power embedded WiFi+BLE module that Tuya has developed. It consists of a highly integrated wireless RF chip (RTL8720CF), with an embedded WiFi network protocol stack and varied library functions. With the maximum CPU clock rate of 100MHz, WBR2L also contains a low-power KM4 microcontroller unit (MCU), a WLAN MAC, a 1T1R WLAN module, 256-KB static random-access memory (SRAM), 2-MB flash memory, and extensive peripherals.
1 • • • • • • Smart household and home appliances Smart socket and light Industrial wireless control Baby monitor Network camera Intelligent bus 2 / 21 PRODUCT OVERVIEW
3 MODULE INTERFACES 2 Change history Update date Updated content Version after Update 07/21/2020 This is the first release. V1.0.0 3 Module interfaces 3.1 Dimensions and footprint WBR2L has two rows of pins with a 2 mm pin spacing. Each row has 8 pins. The WBR2L dimensions are 15±0.35 mm (W)×19.3±0.35 mm (L) ×2.9±0.15 mm (H). The dimensions of WBR2L are as follows: 3.
3 MODULE INTERFACES Pin Number Symbol I/O Type Function 1 A_11 I/O GPIOA_11, hardware PWM, IC Pin 25 2 A_12 I/O GPIOA_12, hardware PWM, IC Pin 26 3 A_17 I/O GPIOA_17, hardware PWM, IC Pin 38 4 A_18 I/O GPIOA_18, hardware PWM, IC Pin 39 5 A_19 I/O GPIOA_19, hardware PWM, IC Pin 40 6 GND P Power supply reference ground 7 3V3 P Power supply pin (3.3V) Note: P indicates power supply pins and I/O indicates input/output pins.
4 ELECTRICAL PARAMETERS 4 Electrical parameters 4.1 Absolute electrical parameters Minimum value Maximum value Unit Parameter Description Ts Storage temperature —40 125 ℃ VDD Power supply voltage -0.3 3.6 V Static electricity discharge voltage (human body model) TAMB-25℃ - 2 KV Static electricity discharge voltage (machine model) TAMB-25℃ - 0.5 KV 4.
4 ELECTRICAL PARAMETERS Minimum value Typical value Maximum value Unit Parameter Description VIL I/O low-level input - - 0.8 V VIH I/O high-level input 2.0 - - V VOL I/O low-level output - - 0.4 V VOH I/O high-level output 2.4 - - V Imax IO drive current - - 16 mA Cpad Input pin capacitance - 2 - pF Peak value (Typical value) Unit 4.
4 ELECTRICAL PARAMETERS Peak value (Typical value) Unit Symbol Mode Power Average value IRF 11g 54 Mbps 17.5 dBm 177 213 mA IRF 11n BW20 MCS7 13 dBm 145 167 mA IRF 11n BW20 MCS7 16.5 dBm 165 193 mA RX power consumption Peak value (Typical value) Unit Symbol Mode Average value IRF 11B 11M 63 65 mA IRF 11G 54M 65 67 mA IRF 11N HT20 MCS7 65 67 mA 4.
5 Working Mode Working Status, Ta = 25°C RF PARAMETERS Average value Peak value (Typical value) Unit Quick connection network state The module is in the fast network connection state and the WiFi indicator always flashes 75 324 mA Network connection idle state The module is connected to the network and the WiFi indicator is always on 64 314 mA Network connection operation state The module is connected to the network and the WiFi indicator is always on 66 305 mA Disconnected state The m
5 RF PARAMETERS Parameter Description Frequency range 2.400 to 2.4835 GHz WiFi standard IEEE 802.11b/g/n (channels 1 to 14) BLE standard Bluetooth 4.2 Data transmission rate 11b: 1, 2, 5.5, 11 (Mbps) Data transmission rate 11g: 6, 9, 12, 18, 24, 36, 48, 54 (Mbps) Data transmission rate 11n: HT20 MCS0 to 7 Antenna type PCB antenna with a gain of 1.73 dBi 5.2 TX performance Typical value Maximum value Unit Average RF output power, 802.11b CCK Mode 1M 17.
5 Typical value Maximum value Unit - 20 ppm EVM@802.11b CCK 11 Mbps Mode 17.5 dBm - -10 dB EVM@802.11g OFDM 54 Mbps Mode 14.5 dBm - -29 dB EVM@802.11n OFDM MCS7 Mode 13.5 dBm - -30 dB Minimum value Typical value Maximum value Unit - -91 - dBm PER<10%, RX sensitivity, 802.11g OFDM Mode 54M -75 - dBm Parameter Frequency error Minimum value -20 RF PARAMETERS 5.3 RX performance Parameter PER<8%, RX sensitivity, 802.
6 Typical value Maximum value Unit PER<10%, RX sensitivity, 802.11n OFDM Mode MCS7 -72 - dBm PER<10%, RX sensitivity, BLE 4.2 1M -93 - dBm Parameter Minimum value ANTENNA 6 Antenna 6.1 Antenna type WBR2L uses only an onboard PCB antenna with a gain of 1.73 dBi. 6.2 Antenna interference reduction To ensure optimal WiFi performance when the WiFi module uses an onboard PCB antenna, it is recommended that the antenna be at least 15 mm away from other metal parts.
7 PACKAGING INFORMATION AND PRODUCTION INSTRUCTIONS 7 Packaging information and production instructions 7.1 Mechanical dimensions The mechanical dimensions of the PCB of WBR2L are 15±0.35 mm (W)×19.3±0.35 mm (L) ×0.8±0.1 mm (H). The following figure shows the mechanical dimensions of WBR2L. Note: The default dimensional tolerance is ±0.35 mm. If you have specific requirements on dimensions, make them clear in the datasheet after communication. 7.
7 PACKAGING INFORMATION AND PRODUCTION INSTRUCTIONS WBR2L PCB Layout is shown as below: 13 / 21
7 PACKAGING INFORMATION AND PRODUCTION INSTRUCTIONS 7.3 Production instructions 1. For the in-line module developed by Tuya, wave soldering equipment is most preferred and manual soldering is less preferred. After unpacking, the module must be soldered within 24 hours; otherwise, vacuum packaging needs to be carried out again.
7 PACKAGING INFORMATION AND PRODUCTION INSTRUCTIONS 2. The module developed by Tuya needs to be baked in the following cases: • • • • • Vacuum packaging bag was damaged before unpacking. There is no humidity indicator card (HIC) in the vacuum packaging bag. After unpacking, 30% and above circles on the HIC become pink. Production is not completed within 72 hours after unpacking. More than 6 months have passed since the date of sealing the bag. 3.
7 PACKAGING INFORMATION AND PRODUCTION INSTRUCTIONS Recommended soldering temperature: 16 / 21
7 PACKAGING INFORMATION AND PRODUCTION INSTRUCTIONS 7.5 Storage conditions Storage conditions for a delivered module are as follows: • The moisture-proof bag is placed in an environment where the temperature is below 30°C 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. • The package contains a humidity indicator card (HIC).
7 PACKAGING INFORMATION AND PRODUCTION INSTRUCTIONS 18 / 21
9 APPENDIX: STATEMENT 8 MOQ and packaging information Product Number MOQ (pcs) Shipping packaging method WBR2L 4800 Tape reel The number of modules per reel (pcs) The number of reels per carton (reel) 1200 4 9 Appendix: Statement FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. This device complies with Part 15 of the FCC Rules.
9 APPENDIX: STATEMENT This equipment complies with FCC radiation exposure limits set forth for an uncontrolled rolled environment. This equipment should be installed and operated with a minimum 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.
9 APPENDIX: STATEMENT Hereby, Hangzhou Tuya Information Technology Co., Ltd declares that this module product is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EU, 2011/65/EU. A copy of the Declaration of conformity can be found at https://www.tuya.com. This product must not be disposed of as normal household waste, in accordance with the EU directive for waste electrical and electronic equipment (WEEE-2012/19/EU).
