AI-WB2-07S

Ai-WB2-07S Specification V1.1.2 

## Ai-WB2-07S Specification 

Version V1.1.2 Copyright ©2022 

Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

Page 1 of 19 

Ai-WB2-07S Specification V1.1.2 

## **Document resume** 

**Version Date Develop/revise content Edition Approve** 

- V1.0.0 2022.6.20 First Edition NanNan Yuan NingGuan 

- ~~a~~ V1.0.1 2022.7.21 Update Rendering Figure NanNan Yuan NingGuan Update the module version, The 

- V1.1.2 2022.9.23 package is SMD-16, Rendering NanNan Yuan NingGuan Figure, Pin function definition table 

- ~~pf| a~~ 

Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

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Ai-WB2-07S Specification V1.1.2 

## **Content** 

1. Product Overview.....................................................................................................................4 1.1. Characteristic.................................................................................................................5 2. Main parameters....................................................................................................................... 6 2.1. Static electricity requirement.........................................................................................6 2.2. Electrical characteristics................................................................................................7 2.3. Wi-Fi RF Performance.................................................................................................. 7 2.4. BLE RF Performance.................................................................................................... 8 2.5. Power.............................................................................................................................8 3. Appearance Dimensions........................................................................................................... 9 4. Pin Definition......................................................................................................................... 10 5. Schematic............................................................................................................................... 12 6. Design Guidance.................................................................................................................... 13 6.1. Application circuit....................................................................................................... 13 6.2. Recommend PCB footprint size.................................................................................. 14 6.3. Antenna layout requirements.......................................................................................14 6.4. Power supply............................................................................................................... 15 6.5. GPIO............................................................................................................................16 7. Storage conditions.................................................................................................................. 17 8. Reflow welding curve diagram.............................................................................................. 17 9. Product Packaging Information..............................................................................................18 10. Contact us............................................................................................................................. 18 Disclaimer and copyright notice.................................................................................................19 Notice......................................................................................................................................... 19 

Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

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Ai-WB2-07S Specification V1.1.2 

## **1. Product Overview** 

Ai-WB2-07S is a Wi-Fi&BT module developed by Shenzhen Ai-Thinker Technology Co., LTD. The module is equipped with BL602 chip as the core processor and supports Wi-Fi 802.11b/ g/n protocol and BLE 5.0 protocol. The BL602 chip has a low-power 32-bit RISC CPU, 276KB RAM, and a wealth of peripheral interfaces, including SDIO, SPI, UART, I2C, IR Remote, PWM, ADC, DAC, PIR and GPIO etc. It can be widely used in Internet of Things (IoT), mobile devices, wearable electronic devices, smart home and other fields. 

**Figure 1 Main chip block diagram** 

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Ai-WB2-07S Specification V1.1.2 

## **1.1. Characteristic** 

- The package is SMD-16 

- Support IEEE 802.11 b/g/n protocol 

- Wi-Fi Security Support WPS/WEP/WPA/WPA2 Personal/WPA2 Enterprise/WPA3 

- Support 20MHz bandwidth and Max rate is 72.2 Mbps 

- Bluetooth BLE 5.0, Bluetooth Mesh 

- Support Station + BLE mode、Station + SoftAP + BLE mode 

- Support 32-bit RISC CPU，276KB RAM 

- Secure start-up, supports mirroring with ECC-256 signature 

- Support QSPI/SPI Flash On-The-Fly AES Decryption, support AES 128 CTR mode 

- Support AES 128/192/256-bit encryption engine 

- Support SHA-1/224/256 

- Support true Random number generator (TRNG) 

- Public key Accelerator (PKA), support large number basic operations, software provides signature, verification and other application program interface 

- Support SDIO，SPI，UART，I2C，IR remote，PWM，ADC，DAC，PIR，GPIO etc 

- Integrated Wi-Fi MAC/BB/RF/PA/LNA/BT 

- Support a variety of sleep modes, deep sleep current 12μA 

- Universal AT instruction for quick start 

- Support secondary development, integrated Windows, Linux development environment 

Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

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Ai-WB2-07S Specification V1.1.2 

## **2. Main parameters** 

**Table 1 Description of the main parameters** 

|**Model**|Ai-WB2-07S|
|---|---|
|**Package**|SMD-16|
|**Size**|17.0*16.0*3.1(±0.2)mm|
|**Antenna**|IPEX connector|
|**Frequency**|2400 ~ 2483.5MHz|
|**Operating temperature**|-40℃~ 85℃|
|**Storage temperature**|-40℃~ 125℃, < 90%RH|
|**Power supply**|Support voltage 2.7V ~ 3.6V,supply current<br>≥500mA|
|**Interface**|UART/GPIO/ADC/PWM/I2C/SPI|
|**IO**|11|
|**UART rate**|Default 115200 bps|
|**Security**|WPS/WEP/WPA/WPA2 Personal/WPA2 Enterprise/WPA3|
|**Flash**|Default 4MByte,Support expansion|



## **2.1. Static electricity requirement** 

Ai-WB2-07S is an electrostatic sensitive device. Therefore, you need to take special precautions when carrying it. 

**Figure 2 ESD preventive measures** 

Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

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Ai-WB2-07S Specification V1.1.2 

## **2.2. Electrical characteristics** 

**Table 2 Electrical characteristics table** 

|**Parameters**|**Parameters**|**Condition**|**Min.**|**Typical value**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|Voltage Supply||VDD|2.7|3.3|3.6|V|
|I/O|VIL|-|-|-|0.3*VDDIO|V|
||VIH|-|0.7*VDDIO|-|-|V|
||VOL|-|-|0.1*VDDIO|-|V|
||VOH|-|-|0.9*VDDIO|-|V|
||IMAX|-|-|-|15|mA|



## **2.3. Wi-Fi RF Performance** 

**Table 3 Wi-Fi RF performance table** 

|**Description**|**Typical value**|**Typical value**|**Typical value**|**Unit**|
|---|---|---|---|---|
|**Frequency range**|**2400 ~ 2483.5MHz**|||**MHz**|
|**Output Power**|||||
|**Mode**|**Min.**|**Typical value**|**Max.**|**Unit**|
|**11n Mode HT20**，**PA output**|**-**|**16**|**-**|**dBm**|
|**11g Mode, PA output power**|**-**|**17**|**-**|**dBm**|
|**11b Mode, PA output power**|**-**|**19**|**-**|**dBm**|
|**Receive Sensitivity**|||||
|**Mode**|**Min.**|**Typical value**|**Max.**|**Unit**|
|**11b**，**1 Mbps**|**-**|**-98**|**-**|**dBm**|
|**11b, 11 Mbps**|**-**|**-90**|**-**|**dBm**|
|**11g, 6 Mbps**|**-**|**-93**|**-**|**dBm**|
|**11g, 54 Mbps**|**-**|**-76**|**-**|**dBm**|
|**11n**，**HT20 (MCS7)**|**-**|**-73**|**-**|**dBm**|



Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

Page 7 of 19 

Ai-WB2-07S Specification V1.1.2 

## **2.4. BLE RF Performance** 

**Table 4 BLE RF performance table** 

|**Description**|**Typical value**|**Typical value**|**Typical value**|**Unit**|
|---|---|---|---|---|
|Frequency range|2400 ~ 2483.5MHz|||MHz|
|**Output Power**|||||
|**Rate Mode**|**Min.**|**Typical value**|**Max.**|**Unit**|
|1Mbps|-|9|15|dBm|
|**Receive Sensitivity**|||||
|**Rate Mode**|**Min.**|**Typical value**|**Max.**|**Unit**|
|1Mbps sensitivity@30.8%PER|-|-96|-|dBm|



## **2.5. Power** 

The following power consumption data are based on a 3.3V power supply, 25°C ambient temperature, and measured using an internal voltage regulator. 

- All measurements are made at the antenna interface with a filter. 

- All transmission data are based on 100% duty cycle in continuous transmission mode. 

**Table 5 Power consumption table** 

|**Mode**|**Min.**|**AVG**|**Max.**|**Unit**|
|---|---|---|---|---|
|Tx 802.11b，11Mbps，POUT=+21dBm|-|260|-|mA|
|Tx 802.11g，54Mbps，POUT =+18dBm|-|245|-|mA|
|Tx 802.11n，MCS7，POUT =+17dBm|-|230|-|mA|
|Rx 802.11b,packet length 1024 byte|-|65|-|mA|
|Rx 802.11g,packet length 1024 byte|-|65|-|mA|
|Rx 802.11n,Packet length 1024 byte|-|65|-|mA|
|Deep-Sleep|-|12|-|μA|



Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

Page 8 of 19 

Ai-WB2-07S Specification V1.1.2 

## **3. Appearance Dimensions** 

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Back<br>Front<br>**----- End of picture text -----**<br>


## **Figure 3 Appearance diagram (Rendering figure is for reference only,subject to physical objects)** 

Back Front 

**Figure 4 Dimension diagram(unit:mm)** 

Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

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Ai-WB2-07S Specification V1.1.2 

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## **4. Pin Definition** 

Ai-WB2-07S module is connected with a total of 16 pins, as shown in the pin schematic diagram, pin function definition table is the interface definition. 

**Figure 6 Schematic diagram of module pins** 

- IO8 pin use IO4 pin function by default, and IO4 pin use IO2 pin function by default. If you need to change the use, please contact Anxin first. 

Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

Page 10 of 19 

Ai-WB2-07S Specification V1.1.2 

## **Table 6 Pin function definition table** 

|No.|Name|Function|
|---|---|---|
|1|RST/NC|Default not connect, can be customized to reset pin, active-low, if you need<br>to use it, please contact Ai-Thinker|
|2<br>~~a~~|IO11<br>~~a~~|GPIO11/SPI_SCLK/IIC_SDA/ADC_CH10|
|3<br>~~a~~|EN/NC<br>~~a~~|Default chip enable pin, active-high, cannot be used with RST at the same<br>time|
|4<br>~~a~~<br>~~i~~|IO12<br>~~a~~<br>~~i~~|GPIO12/SPI_MOSI/MISO/IIC_SCL/PWM_CH2/ADC_CH0|
|5<br>~~i~~<br>~~a~~|IO14<br>~~i~~<br>~~a~~|GPIO14/SPI_SS/IIC_SCL/PWM_CH4/ADC_CH2|
|6<br>~~a~~<br>~~a~~|IO17<br>~~a~~<br>~~a~~|GPIO17/SPI_MOSI/MISO/IIC_SDA/PWM_CH2|
|7<br>~~a~~<br>~~Le~~|IO3<br>~~a~~<br>~~Le~~|GPIO3/SPI_SCLK/IIC_SDA/PWM_CH3<br>|
|8<br>~~Le~~|VCC<br>~~Le~~|3.3V power supply; It is recommended that the output current of the external<br>power supply be higher than 500mA<br>|
|9<br>~~Lea~~|GND<br>~~Lea~~|Ground<br>~~a~~|
|**10**<br>~~a~~|**IO8**<br>~~a~~|**GPIO4/SPI_MOSI/MISO/IIC_SCL/PWM_CH4/ADC_CH4**<br>~~a~~|
|**11**<br>~~a~~|**IO4**<br>~~a~~|**It is not recommended to use. It is shared with the Flash in the module.**<br>**If you need to use it, please contact Ai-Thinker.**<br>**GPIO2/SPI_SS/IIC_SCL/PWM_CH2**<br>~~a~~|
|12<br>~~a~~<br>~~es~~|NC<br>~~a~~<br>~~es~~|NC,<br>unavailable<br>~~a~~|
|13<br>~~es~~|IO5<br>~~es~~|GPIO5/SPI_MOSI/MISO/IIC_SDA/PWM_CH0/ADC_CH4|
|14<br>~~es~~|IO1<br>~~es~~|It is not recommended to use. It is shared with the Flash in the module. If<br>you need to use it, please contact<br>Ai-Thinker.GPIO1/SPI_MOSI/MISO/IIC_SDA/PWM_CH1|
|15<br>~~es~~<br>~~a~~|RXD<br>~~es~~<br>~~a~~|RXD/GPIO7/SPI_SCLK/IIC_SDA/PWM_CH2|
|16<br>~~i~~|TXD<br>~~i~~|TXD/GPIO16/SPI_MOSI/MISO/IIC_SCL/PWM_CH1|



Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

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Ai-WB2-07S Specification V1.1.2 

## **5. Schematic** 

**Figure 7 Module schematic** 

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Page 12 of 19 

Ai-WB2-07S Specification V1.1.2 

## **6. Design Guidance** 

## **6.1. Application circuit** 

**Figure 8 Application circuit diagram** 

- If the IO port is used as PWM, it is recommended to reserve a 4.7K pull-down resistor around the module. Especially in the application of light control, it can prevent the flashing light phenomenon at the moment of power-on start. 

- The RST/NC pin, which are not available by default.If you need to use it, please contact Ai-Thinker. 

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Page 13 of 19 

Ai-WB2-07S Specification V1.1.2 

## **6.2. Recommend PCB footprint size** 

**Figure 9 Recommend PCB footprint size** 

## **6.3. Antenna layout requirements** 

- This module need to use with external antenna. 

- In order to meet the performance of onboard antenna, it is forbidden to place metal parts 

- around the antenna and keep away from high frequency devices. 

Copyright © 2022 Shenzhen Ai-Thinker Technology Co., Ltd All Rights Reserved 

Page 14 of 19 

Ai-WB2-07S Specification V1.1.2 

## **6.4. Power supply** 

- Recommended 3.3V voltage,peak current over 500mA. 

- Power supply is recommend to use LDO; if the DC-DC is used, the ripple is recommended to be controlled within 30mV 

- DC-DC power supply circuit proposes to reserve the dynamic response capacitance to optimize the output ripple with large load changes. 

- It is recommended to add ESD devices to the 3.3V power interface. 

**Figure 10 DC-DC step-down circuit diagram** 

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Page 15 of 19 

Ai-WB2-07S Specification V1.1.2 

## **6.5. GPIO** 

- There are some IO ports on the periphery of the module. If you need to use it, it is recommended to connect a 10-100 ohm resistor in series with the IO port. This inhibits overshoot and makes both sides level more stable. It is helpful for EMI and ESD. 

- For special I/O ports to be pulled up and down, refer to the direction for use in the specifications, which may affect the module start-up configuration. 

- The IO port of the module is 3.3V. If the IO level of the main control and the module do not match, a level convert circuit needs to be added. 

- If the I/O port is directly connected to a peripheral port or terminals, for example, a pin row, reserve an ESD device near the terminal of the I/O cable. 

**Figure 11 Level convert circuit** 

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Page 16 of 19 

Ai-WB2-07S Specification V1.1.2 

## **7. Storage conditions** 

Products sealed in moisture-proof bags should be stored in a non-condensing atmosphere of <40 ° C /90%RH. 

The module has a moisture sensitivity rating of MSL 3. 

After the vacuum bag is opened, it must be used within 168 hours at 25±5℃/60%RH, otherwise it needs to be baked before it can be put on line again. 

## **8. Reflow welding curve diagram** 

**Figure 12 Reflow welding diagram** 

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Page 17 of 19 

Ai-WB2-07S Specification V1.1.2 

## **9. Product Packaging Information** 

Ai-WB2-07S module was packaged in a tape, 800pcs/reel. As shown in the below image: 

**Figure 13 Package and packing diagram** 

## **10.Contact us** 

Ai-Thinker official website Office forum Develop DOCS LinkedIn Tmall shop Taobao shop Alibaba shop 

Technical support email：support@aithinker.com Domestic business cooperation：sales@aithinker.com Overseas business cooperation：overseas@aithinker.com 

Company Address：Room 403,408-410, Block C, Huafeng Smart Innovation Port, Gushu 2nd Road, Xixiang, Baoan District, Shenzhen. 

Tel：+86-0755-29162996 

WeChat mini program 

WeChat official account 

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Ai-WB2-07S Specification V1.1.2 

## **Disclaimer and copyright notice** 

The information in this article,including the URL address for reference,is subject to change without notice. 

The document is provided"as is"without any guarantee responsibility,including any guarantee for merchantability,suitability for a specific purpose,or non-infringement,and any guarantee mentioned elsewhere in any proposal,specification or sample.This document does not bear any responsibility,including the responsibility for infringement of any patent rights arising from the use of the information in this document.This document does not grant any license for the use of intellectual property rights in estoppel or other ways,whether express or implied. 

The test data obtained in the article are all obtained from Ai-Thinker's laboratory tests,and the actual results may vary slightly. 

All brand names,trademarks and registered trademarks mentioned in this article are the property of their respective owners,and it is hereby declared. 

The final interpretation right belongs to Shenzhen Ai-Thinker Technology Co.,Ltd. 

## **Notice** 

Due to product version upgrades or other reasons,the contents of this manual may be changed. 

Shenzhen Ai-Thinker Technology Co.,Ltd.reserves the right to modify the contents of this manual without any notice or prompt. 

This manual is only used as a guide.Shenzhen Ai-Thinker Technology Co.,Ltd. makes every effort to provide accurate information in this manual.However, Shenzhen Ai-Thinker Technology Co.,Ltd. does not guarantee that the contents of the manual are completely free of errors.All statements and information in this manual And the suggestion does not constitute any express or implied guarantee. 

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