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Global Intelligent Platform
Product
Manual
Version: 1.0.0
1 Product Overview
WB2L is a low-power embedded Wi-Fi module that Tuya has developed. It consists of a
highly integrated RF chip (BK7231T) and several peripheral components, with an
embedded Wi-Fi network protocol stack and robust library functions. WB2L is embedded
with a low-power Arm Cortex-M4 MCU, 2 MB flash memory, and 256 KB static
random-access memory (SRAM), and has extensive peripherals.
WB2L is an RTOS platform that integrates all function libraries of the Wi-Fi MAC and
TCP/IP protocols. You can develop embedded Wi-Fi products as required.
1.1 Features
Embedded low-power 32-bit CPU, which can also function as an application
processor
Clock rate: 120 MHz
Working voltage: 3.0 V to 3.6 V
Peripherals: five GPIOs
Wi-Fi connectivity
802.11b/g/n
Channels 1 to 14 at 2.4 GHz
WPA and WPA2 security modes
Up to +17.5 dBm output power in 802.11b mode
STA, AP, and STA+AP working modes
Smart and AP network configuration modes for Android and iOS devices
Onboard PCB antenna with a gain of 1 dBi
Working temperature: –20°C to +105°C
Hangzhou Tuya Information Technology Co., Ltd.
Tuya WB2L Wi-Fi Module
Date: 2019-11-07
1
WB2L Datasheet
No.: 0000000004
V1.0.0
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Summary of Contents for TUYA WB2L
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Page 1: Product Overview
No.: 0000000004 1 Product Overview WB2L is a low-power embedded Wi-Fi module that Tuya has developed. It consists of a highly integrated RF chip (BK7231T) and several peripheral components, with an embedded Wi-Fi network protocol stack and robust library functions. WB2L is embedded with a low-power Arm Cortex-M4 MCU, 2 MB flash memory, and 256 KB static random-access memory (SRAM), and has extensive peripherals. -
Page 2: Applications
Onboard PCB antenna with a gain of 1 dBi 1.2 Applications Intelligent building Smart household and home appliances Smart socket and light Industrial wireless control Baby monitor Network camera Intelligent bus Hangzhou Tuya Information Technology Co., Ltd. V1.0.0... - Page 3 WB2L Datasheet Change History Date Change Description Version After Change 2019-11-07 This is the first release. 1.0.0 Hangzhou Tuya Information Technology Co., Ltd. V1.0.0...
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Page 4: Table Of Contents
Mechanical Dimensions ................11 Recommended PCB Layout ................ 13 Production Instructions ................14 Recommended Oven Temperature Curve ........... 16 Storage Conditions ..................17 MOQ and Packing Information ................... 18 Appendix: Statement ............... 错误!未定义书签。 Hangzhou Tuya Information Technology Co., Ltd. V1.0.0... - Page 5 Figure 6-3 WB2L pins ....................13 Figure 6-4 WB2L pin header dimensions ..............13 Figure 6-5 Layout of the PCB to which WB2L applies ..........14 Figure 6-6 HIC for WB2L .................... 15 Figure 6-7 Oven temperature curve ................16 Tables Table 2-1 WB2L interface pins ..................
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Page 6: Module Interfaces
2.1 Dimensions and Footprint WB2L has two rows of pins with a 2±0.1 mm pin spacing. The WB2L dimensions (H x W x D) are 2.8±0.15 mm x 17.3±0.35 mm x 15±0.35 mm. Figure 2-1 shows the WB2L front and rear views. -
Page 7: Test Pin Definition
(pin 16) on the internal IC Power supply reference ground pin Power supply pin (3.3 V) Note: P indicates power supply pins, and I/O indicates input/output pins. 2.3 Test Pin Definition Table 2-2 WB2L test pins Pin No. Symbol I/O Type Function... -
Page 8: Electrical Parameters
°C VBAT Power supply voltage I/O low-level input –0.3 VCC x 0.25 I/O high-level input VCC x 0.75 I/O low-level output VCC x 0.1 I/O high-level output VCC x 0.8 I/O drive current Hangzhou Tuya Information Technology Co., Ltd. V1.0.0... -
Page 9: Rf Current Consumption
54 Mbit/s Constant 802.11g receiving MCS7 Constant 802.11n receiving 3.4 Working Current Table 3-4 WB2L working current Working Working Status (Ta = 25°C) Average Maximum Unit Mode Value Value The module is in EZ mode, and the Wi-Fi indicator blinks quickly. -
Page 10: Rf Features
Value Value Value Average RF output power, 11 Mbit/s 802.11b CCK mode Average RF output power, 54 Mbit/s 13.5 802.11g OFDM mode Average RF output power, MCS7 802.11n OFDM mode Frequency error –10 Hangzhou Tuya Information Technology Co., Ltd. V1.0.0... -
Page 11: Rx Performance
OFDM mode 5 Antenna Information 5.1 Antenna Type WB2L uses an onboard PCB antenna or external antenna with an I-PEX connector. 5.2 Antenna Interference Reduction To ensure optimal Wi-Fi performance when the Wi-Fi module uses an onboard PCB antenna, it is recommended that the antenna be at least 15 mm away from other metal parts. -
Page 12: Figure 6-1 Wb2L Mechanical Dimensions
WB2L Datasheet Figure 6-1 WB2L mechanical dimensions Figure 6-2 Side view Hangzhou Tuya Information Technology Co., Ltd. V1.0.0... -
Page 13: Recommended Pcb Layout
6.2 Recommended PCB Layout Figure 6-3 WB2L pins WB2L can be mounted onto a PCB by using an SMT placement machine or connected to the PCB through a pin header. Figure 6-4 shows the pin header dimensions. Figure 6-4 WB2L pin header dimensions Hangzhou Tuya Information Technology Co., Ltd. -
Page 14: Production Instructions
Figure 6-5 Layout of the PCB to which WB2L applies 6.3 Production Instructions 1. Use an SMT placement machine to mount the stamp hole module that Tuya produces onto the PCB within 24 hours after the module is unpacked and the firmware is burned. -
Page 15: Figure 6-6 Hic For Wb2L
Tuya is not liable for such problems and consequences. 6. Before SMT placement, take electrostatic discharge (ESD) protective measures. -
Page 16: Recommended Oven Temperature Curve
WB2L Datasheet batches for visual inspection and AOI. 6.4 Recommended Oven Temperature Curve Perform SMT placement based on the following reflow oven temperature curve. The highest temperature is 245°C. Figure 6-7 Oven temperature curve Hangzhou Tuya Information Technology Co., Ltd. V1.0.0... -
Page 17: Storage Conditions
WB2L Datasheet 6.5 Storage Conditions Hangzhou Tuya Information Technology Co., Ltd. V1.0.0... -
Page 18: Moq And Packing Information
7 MOQ and Packing Information MOQ and Packing Information Number of Product Packing Number of Reel Modules in Each Model Method Packs in Each Box Reel Pack Carrier tape WB2L 4000 and reel 1000 packing Hangzhou Tuya Information Technology Co., Ltd. V1.0.0... -
Page 19: Appendix: Statement
Additional testing and equipment authorization may be required to operating simultaneously with other radio. 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. Hangzhou Tuya Information Technology Co., Ltd. V1.0.0... - Page 20 This product must be installed and operated with a minimum distance of 20 cm between the radiator and user body. This device have got a FCC ID：2ANDL-WB2L.The final end product must be labeled in a visible area with the following: “Contains Transmitter Module FCC ID:2ANDL-WB2L”...
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