Product Manual

ManualsBrandsHangzhou Tuya Information Technology ManualsElectronicsWi-Fi and Bluetooth Module

1 Product Overview

WB8P 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, Bluetooth network protocol, and robust library functions. WB8P also

contains a low-power Arm Cortex-M4 MCU, 1T1R WLAN module, 256 KB static random-access

memory (SRAM), and 2 MB flash memory, and has extensive peripherals.

WB8P 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: eight GPIOs, one universal asynchronous receiver/transmitter (UART), and one

analog-to-digital converter (ADC)



Wi-Fi connectivity

⚫

802.11b/g/n

⚫

Channels 1 to 14 at 2.4 GHz

⚫

WPA and WPA2 security modes

⚫

Smart network configuration for Android and iOS devices

⚫

Onboard PCB antenna with a gain of 2 dBi

⚫

Working temperature: –20°C to +105°C

Product

Manual

WB8P Wi-Fi and Bluetooth Module

Version: 1.0.0

Date: 2020-3-30

No.: 0000000001

Global Intelligent Platform

Summary of content (21 pages)

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Global Intelligent Platform Product Manual WB8P Wi-Fi and Bluetooth Module Version: 1.0.0 Date: 2020-3-30 No.: 0000000001 1 Product Overview WB8P 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, Bluetooth network protocol, and robust library functions.
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 Bluetooth connectivity ⚫ Support Bluetooth （V4.
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1.
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Change History No. 1 Date 2020-3-30 Change Description This is the first release. 3 Version After Change 1.0.
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Contents 1 Product Overview ............................................................................................................. 1 1.1 Features ................................................................................................................. 1 1.2 Applications ............................................................................................................ 2 2 Module Interfaces ...............................................................................................
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Figures Figure 2-1 WB8P front and rear views ......................................................................... 6 Figure 5-1 Antenna clearance part ............................................................................. 12 Figure 6-1 WB8P mechanical dimensions ................................................................. 13 Figure 6-2 Side view ...................................................................................................
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WB8P Datesheet 2 Module Interfaces 2.1 Dimensions and Footprint WB8P has one row of pins with a 1.27±0.1 mm pin spacing. The WB8P dimensions (H x W x D) are 3.5 mm x 16 mm x 24.8 mm. Figure 2-1 shows the WB8P front and rear views. Note: The default dimensional tolerance is ±0.3 mm. If a customer has other requirements, clearly specify them in the datasheet after communication. Figure 2-1 WB8P front and rear views 2.
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WB8P Datesheet Table 2-1 WB8P interface pins Pin No. Symbol I/O Type Function 1 VCC P Power supply pin (3.
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WB8P Datesheet Pin No.
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WB8P Datesheet Static electricity voltage (human body model) Tamb = 25°C N/A 2 kV Static electricity voltage (machine model) Tamb = 25°C N/A 0.5 kV 3.2 Electrical Conditions Table 3-2 Normal electrical conditions Parameter Description Minimum Value Typical Value Maximum Value Unit Ta Working temperature –20 N/A 105 °C VCC Power supply voltage 3.0 3.3 3.6 V VIL I/O low-level input –0.3 N/A VCC x 0.25 V VIH I/O high-level input VCC x 0.
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WB8P Datesheet 3.4 Working Current Table 3-4 WB8P working current Working Mode Working Status (Ta = 25°C) Typical Value Peak Value* Quick Connected(BT mode) The module is in quick connected mode, and the BT indicator blinks quickly. 100 250 Quick Connected(WIFI mode) The module is connected to the network, and the Wi-Fi indicator is steady on. 50 245 EZ The module is in EZ mode, and the Wi-Fi indicator blinks quickly.
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WB8P Datesheet 802.11n: HT20 MCS0 to MCS7 802.11n: HT40 MCS0 to MCS7 Bluetooth: 1Mbps, 2Mbps Antenna type Onboard PCB antenna with a gain of 2 dBi 4.2 TX Performance Table 4-2 Performance during constant transmission Parameter Minimum Value Typical Value Maximum Value Unit Average RF output power, 802.11b CCK mode 11 Mbit/s N/A 16 N/A dBm Average RF output power, 802.11g OFDM mode 54 Mbit/s N/A 14 N/A dBm Average RF output power, 802.
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WB8P Datesheet 5 Antenna Information 5.1 Antenna Type WB8P uses an on board PCB antenna. 5.2 Antenna Interference Reduction To ensure optimal Wi-Fi performance when the Wi-Fi module uses an on board PCB antenna, it is recommended that the antenna be at least 15 mm away from other metal parts. To prevent adverse impact on the antenna radiation performance, avoid copper or traces along the antenna area on the PCB. Deploy the antenna based on the antenna placement solutions shown in the following figures.
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WB8P Datesheet 6 Packaging Information and Production Instructions 6.1 Mechanical Dimensions Figure 6-1 WB8P mechanical dimensions Figure 6-2 Side view Note: The default dimensional tolerance is ±0.3 mm. If a customer has other requirements, clearly specify them in the data-sheet after communication.
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WB8P Datesheet 6.2 Recommended PCB Layout Figure 6-3 Layout of the PCB to which WB8P applies Note: The default dimensional tolerance is ±0.3 mm. If a customer has other requirements, clearly specify them in the datasheet after communication. 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. If not, vacuum pack the module again.
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WB8P Datesheet 2. Storage conditions for a delivered module are as follows: (1) The moisture-proof bag is 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 12 months from the date when the product is packaged and sealed. (3) The package contains a humidity indicator card (HIC). Figure 6-4 HIC for WB8P 3.
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WB8P Datesheet 6.4 Recommended Oven Temperature Curve 1. Perform SMT placement based on the following reflow oven temperature curve. The highest temperature is 245°C.
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WB8P datesheet 6.5 Storage Conditions 6.6 Appendix - declaration Federal Communications Commission (FCC) Declaration of Conformity 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.
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WB8P datesheet radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
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WB8P datesheet 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 2 conditions above are met, further transmitter test will not be required.
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WB8P datesheet Please notice that if the ISED certification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: “Contains IC:23243-WB8P” any similar wording that expresses the same meaning may be used.