Last Updated on : 2020-09-09 10:49:51download
WB8P is a low-power embedded WiFi+BT module that is developed by Tuya. It consists of a highly integrated wireless RF chip (BK7231T), a few peripherals, an embedded WiFi network protocol stack and varied library functions. WB8P has an embedded low-power 32-bit MCU, 2-MB flash memory, 256-KB static random-access memory (SRAM), and rich peripherals.
WB8P is an RTOS platform that integrates all function libraries of the WiFi MAC and TCP/IP protocols. You can develop embedded WiFi products as required.
|Serial number||Date||Description||Version after Update|
|1||1/21/2020||This is the first release.||V1.0.0|
WB8P has a row of pins with a 1.27±0.1 mm pin spacing.
The WB8P dimensions are 16±0.35 mm (W)×24.8±0.35 mm (L) ×3.5±0.15 mm (H).
Diagram of dimensions of WB8P
Definitions on interface pins are shown as belows:
|Pin Number||Symbol||I/O Type||Function|
|1||VCC||P||Power supply pin (3.3V)|
|3||PWM1||I/O||Support hardware PWM and correspond to P7 of IC|
|4||PWM2||I/O||Support hardware PWM and correspond to P8 of IC|
|5||PWM3||I/O||Support hardware PWM and correspond to P9 of IC|
|6||PWM4||I/O||Support hardware PWM and correspond to P24 of IC|
|7||PWM5||I/O||Support hardware PWM and correspond to P26 of IC|
|8||ADC||AI||ADC pin, which corresponds to P23 of IC|
|9||TXD1||I/O||User-side serial interface UART_TX, which corresponds to P11 of IC|
|10||RXD1||I/O||User-side serial interface UART_RX, which corresponds to P10 of IC|
Note: P indicates power supply pins, I/O indicates input/output pins, and AI indicates analog input interfaces.
|Pin number||Symbol||I/O type||Function|
|TP6||U2_TXD||I/O||UART2_TX, LOG TX|
|TP2||F_SCK||I/O||In download mode, it is the flash download clock interface and corresponds to P 20 of IC|
|TP3||F_SCK||I/O||In download mode, it is the flash download command enabling interface and corresponds to P 21 of IC|
|TP4||F_SI||I/O||In download mode, it is the flash download data input interface and corresponds to P 22 of IC|
|TP5||F_SO||I/O||In download mode, it is the flash download data output interface and corresponds to P 23 of IC|
|TP7||U2_RXD||I/O||UART2_RX, LOG RX|
|TP8||CEN||I/O||Enabling pin of a chip|
Note: Test pins are not recommended.
|Parameter||Description||Minimum value||Maximum value||Unit|
|VBAT||Power supply voltage||3.0||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|
|Parameter||Description||Minimum value||Typical value||Maximum value||Unit|
|VBAT||Power supply voltage||3.0||3.3||3.6||V|
|VIL||IO low-level input||-0.3||-||VCC*0.25||V|
|VIH||IO high-level input||VCC*0.75||-||VCC||V|
|VOL||IO low-level output||-||-||VCC*0.1||V|
|VOH||IO high-level output||VCC*0.8||-||VCC||V|
|Imax||IO drive current||-||-||12||mA|
|Working Status||Mode||Rate||Transmit Power/Receive||Average value||Peak value (Typical value))||Unit|
|Transmit||11 b||11 Mbps||+17 dBm||290||351||mA|
|Transmit||11 g||54 Mbps||+13.5 dBm||264||301||mA|
|Transmit||11 n||MCS 7||+13 dBm||262||293||mA|
|Receive||11b||11 Mbps||Constantly receive||98||103||mA|
|Receive||11g||54 Mbps||Constantly receive||97||101||mA|
|Receive||11n||MCS 7||Constantly receive||96||99||mA|
|Working mode||Working status, Ta = 25℃||Average value||Maximum value (Typical value)||Unit|
|Quick connection network state (network configuration through bluetooth )||The module is in the fast network connection state and the WiFi indicator always flashes||83||297||mA|
|Hotspot network configuration state (network configuration through AP )||The module is in the hotspot network configuration state and the WiFi indicator flashes slowly||48.5||384||mA|
|Quick connection network state (network configuration through EZ)||The module is in the fast network connection state and the WiFi indicator always flashes||81||298||mA|
|Network connection idle state||The module is disconnected and the WiFi indicator is always on||43||306||mA|
|Network connection operation state||The module is disconnected and the WiFi indicator is always on||48||342||mA|
|Working frequency||2.412 to 2.484 GHz|
|WiFi standard||IEEE 802.11 b/g/n (channels 1 to 14)|
|BLE standard||low-power Bluetooth 4.2|
|Data transmission rate||11b: 1, 2, 5.5, 11 (Mbps); 11g: 6, 9, 12, 18, 24, 36, 48, 54 (Mbps); 11n: HT20 MCS 0 to 7|
|Antenna type||PCB antenna with a gain of 2 dBi|
|Parameter||Minimum value||Typical value||Maximum value||Unit|
|Average RF output power, 802.11b CCK Mode 11M||-||16||-||dBm|
|Average RF output power, 802.11g OFDM Mode 54M||-||14||-||dBm|
|Average RF output power, 802.11n OFDM Mode MCS7||-||12||-||dBm|
|Parameter||Minimum value||Typical value||Maximum value||Unit|
|PER<8%, RX sensitivity, 802.11b DSSS Mode 11M||-||-89||-||dBm|
|PER<10%, RX sensitivity, 802.11g OFDM Mode 54M||-||-75||-||dBm|
|PER<10%, RX sensitivity, 802.11n OFDM Mode MCS7||-||-68||-||dBm|
|PER<10%,RX sensitivity, BLE 1M||-||-95||-||dBm|
WB8P uses only an onboard PCB antenna.
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.
To ensure the antenna performance, the PCB should not be routed or clad with copper in the antenna area.
For the antenna area of the PCB of the module, refer to Diagram of Mechanical Dimensions of WB8P.
The PCB dimensions are 16±0.35 mm (W)×24.8±0.35 mm (L) ×3.5±0.15 mm (H).
WB8P can be in the form of side insertion or pin header plug-in.
Tuya’s stamp hole package module must be mounted by SMT machine within 24 hours after unpacking and programming of the firmware. Otherwise, it must be packaged again under vacuum. The module must be baked before mounting.
Storage conditions for a delivered module are as follows:
Bake a module based on HIC status as follows when you unpack the module package:
Do not use SMT to process modules that have been unpacked for more than 3 months, because electroless nickel/immersion gold (ENIG) is used for PCBs and they are seriously oxidized after more than 3 months. SMT is very likely to cause pseudo and missing soldering. Tuya is not liable for such problems and consequences.
Before SMT, take electrostatic discharge (ESD) protective measures.
To reduce the reflow defect rate, draw 10% of the products for visual inspection and AOI before the first mounting to determine proper methods for controlling the oven temperature and attaching and placing components. Draw 5 to 10 modules from subsequent batches each hour for visual inspection and AOI.
Perform side insertion or SMT based on the following reflow oven temperature curve. The highest temperature is 245℃. The reflow temperature curve is shown as belows:
|Product number||MOQ(pcs)||Shipping packaging method||Number of modules per reel (pcs)||Number of reels per carton (reel)|
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. 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, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can 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. 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 interference by one or more of the following measures:
Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled rolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator and your body.
This radio module must not installed to co-locate and operating simultaneously with other radios in host system except in accordance with FCC multi-transmitter product procedures. 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. The firmware setting is not accessible by the end user.
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 modular transmitter installed.
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.
The warning in red font is only applicable to integrity modules. Restricted modules without antennas, with standard antenna interfaces and without shielding cover shall not be used.
This device have got a FCC ID: 2ANDL-WB8P. The final end product must be labeled in a visible area with the following: “Contains Transmitter Module FCC ID: 2ANDL-WB8P”.
This device is intended only for OEM integrators under the following conditions:
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.
The warning in blue font is applicable to restricted modules without antennas, with standard antenna interfaces and without shielding cover.
The RF module is considered as a limited modular transmitter according to FCC rules. Even though the RF module get a FCC ID, the host product manufacturer can not use the FCC ID on the final product directly. In these circumstances, the host product manufacturer integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining the FCC authorization by a Class II permissive change application or a new application.
Declaration of Conformity European notice
The device could be used with a separation distance of 20 cm to the human body.
The device is restricted to indoor use only when operating in the 5150 to 5350 MHz frequency range. (For 5G Wi-Fi only)