Ai-Thinker Ai-WB2-12S Module
Description:
Ai WB2 12S is a Wifi 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.
Features:
- 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 CPU276KB 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), supports a large number of basic operations, the software provides a signature, verification, and other application program interface
- Support SDIOSPIUARTI2CIR remotePWMADCDACPIRGPIO etc
- Integrated Wi-Fi MAC/BB/RF/PA/LNA/BT
- Support a variety of sleep modes, deep sleep current 12μA
- Universal AT instruction for a quick start
- Support secondary development, integrated Windows, and Linux development environment
Specifications:
- Model: Ai WB2 12S
- Package: SMD 16
- Size: 24.0*16.0*3.1(±0.2)mm
- Antenna on board: PCB antenna
- Frequency: 2400 ~ 2483.5MHz
- Operating temperature: 40℃ ~ 85℃
- Storage temperature 40℃ ~ 125℃, < 90%RH
- Power supply Support voltage: 2.7V ~ 3.6V,
- Supply current: ≥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 2 MByte, MAX support 16 MByte
Datasheet:
Package Includes:
1 x Ai-Thinker Ai-WB2-12S Module
About 12s Module
Ai-Thinker Ai-WB2-12S Module is available at Zbotic, India’s trusted electronics and robotics store. Manufactured by Ai- Thinker, this product is designed for hobbyists, students, and professionals working on electronics, robotics, and DIY projects.
Product Details
- Brand: Ai- Thinker
- SKU: AI1677
- Category: Ai Thinker ESP Modules
Why Buy from Zbotic?
Zbotic offers a wide range of electronics components, development boards, sensors, and robotics parts. All products are quality-checked and shipped within 24 hours. Free shipping on qualifying orders. We offer COD (Cash on Delivery) and secure online payment options. Our customer support team is available to help with technical queries about 12s Module and other products.
Applications
12s Module can be used in a variety of projects including Arduino projects, Raspberry Pi builds, drone assembly, 3D printing, IoT applications, and educational experiments. Whether you are a beginner or an advanced user, this component provides the reliability and performance you need. Order your 12s Module today and start building.
Ai-Thinker Ai-WB2-12S Module Overview
The Ai-Thinker Ai-WB2-12S Module is a compact Wi-Fi and Bluetooth combo board based on the BL602 SoC. It integrates a low-power 32-bit RISC CPU, 276 KB RAM and multiple interfaces, making it ideal for IoT, wearable devices and smart home applications.
Key Features of Ai-Thinker Ai-WB2-12S Module
- Dual-mode connectivity: IEEE 802.11 b/g/n Wi-Fi (20 MHz, up to 72.2 Mbps) and Bluetooth 5.0/Bluetooth Mesh
- Wide supply range: 2.7 V to 3.6 V with ≥ 500 mA current provision
- Rich peripheral set: SDIO, SPI, UART, I²C, PWM, ADC, DAC, IR Remote, PIR and GPIO
- On-board security: WPS, WEP, WPA/WPA2 Personal & Enterprise, WPA3 support
- Flash memory: 2 MB default, expandable up to 16 MB for large firmware
- Fast shipping from Zbotic: dispatched within 24 hours with tracking
Applications and Use Cases
- Smart home controllers: connect sensors and actuators over Wi-Fi or Bluetooth Mesh
- IoT sensor nodes: use low-power ADC and GPIO for environmental monitoring
- Wearable electronics: leverage BLE 5.0 for data sync with mobile apps
- Remote controls and IR devices: integrate IR Remote interface for consumer gadgets
- Wireless gateways: bridge SPI or UART peripherals to cloud services
- Mesh networking: build scalable Bluetooth Mesh lighting or automation systems
How to Use Ai-Thinker Ai-WB2-12S Module
Begin by powering the module at 3.3 V and connect its UART pins to a USB-to-TTL adapter at 115200 bps for initial firmware loading. Use the BL602 SDK to compile and flash your application via SPI or SDIO. Configure Wi-Fi credentials and security modes through AT commands or your custom firmware, then deploy in your IoT or BLE mesh network.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
What voltage range does the Ai-WB2-12S support?
The module accepts a supply voltage from 2.7 V to 3.6 V and requires at least 500 mA for stable operation under both Wi-Fi and BLE transmissions.
How do I expand the on-board flash memory?
By default the module ships with 2 MB of flash. You can solder a compatible 16 MB SPI flash chip onto the board’s footprint to increase storage for larger firmware or file systems.
Does the Ai-WB2-12S support Bluetooth Mesh?
Yes, the BL602 core on the Ai-WB2-12S includes Bluetooth 5.0 with Mesh capabilities, allowing you to build interoperable mesh networks for lighting, sensors and other distributed devices.
Technical Specifications
| Brand | Ai- Thinker |
|---|---|
| Model | WB2-12S |
| SKU | AI1677 |
| Weight | 0.015 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Ai-Thinker Ai-WB2-12S Module is a versatile ai thinker esp modules used across a wide range of applications including WiFi-enabled IoT devices, smart home sensors, web servers, mesh networks, and wireless data logging.
Common use cases:
- Connecting an Arduino project to WiFi
- Building a smart plug or switch
- Creating a wireless sensor network
This product is ideal for IoT developers, home automation enthusiasts, and embedded engineers.
Technical Tip: ESP32 supports both WiFi and Bluetooth. ESP8266 is WiFi-only but more affordable. Both are programmable via Arduino IDE or ESP-IDF.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine Ai- Thinker product sourced from authorized channels

Aryan Rajan (verified owner) –
Love this Ai-Thinker Ai-WB2-12S. Built a smart switch with it. Works with Home Assistant perfectly.
Aisha Kapoor (verified owner) –
Good Ai-Thinker Ai-WB2-12S. WiFi works well. Sometimes needs a reset but overall solid.
Uday Bajaj –
This Ai-Thinker Ai-WB2-12S is amazing for home automation. Connected all my smart devices easily.
Ishan Yadav (verified owner) –
Average Ai-Thinker Ai-WB2-12S. WiFi drops occasionally but works for basic projects.
Naveen Saxena (verified owner) –
Nice Ai-Thinker Ai-WB2-12S for IoT prototyping. Breadboard compatible which is a plus.
Lakshmi Bisht (verified owner) –
Love this Ai-Thinker Ai-WB2-12S. Built a smart switch with it. Works with Home Assistant perfectly.
Yash Vyas –
Perfect for my IoT project. This Ai-Thinker Ai-WB2-12S has excellent WiFi performance.
Aditi Batra (verified owner) –
Outstanding Ai-Thinker Ai-WB2-12S! Programmed it with Arduino IDE. All features work as documented.
Ankit Mehta (verified owner) –
Excellent Ai-Thinker Ai-WB2-12S! WiFi connectivity is strong and stable. Perfect for IoT projects.
Uday Jain –
Great Ai-Thinker Ai-WB2-12S. OTA updates work perfectly. Using 5 of these around my house.
Lakshya Bhatt (verified owner) –
Outstanding Ai-Thinker Ai-WB2-12S! Programmed it with Arduino IDE. All features work as documented.
Sumit Krishnan (verified owner) –
Decent Ai-Thinker Ai-WB2-12S. Had to install CP2102 drivers but works fine after that.
Parth Menon (verified owner) –
Great quality Ai-Thinker Ai-WB2-12S. Flashed with ESPHome and it works beautifully.
Vishal Malhotra (verified owner) –
Good quality Ai-Thinker Ai-WB2-12S. Flash memory is sufficient for most projects.
Sachin Sen (verified owner) –
This Ai-Thinker Ai-WB2-12S is amazing for home automation. Connected all my smart devices easily.
Pooja Pillai (verified owner) –
Great quality Ai-Thinker Ai-WB2-12S. Flashed with ESPHome and it works beautifully.
Ashwin Pillai (verified owner) –
Decent Ai-Thinker Ai-WB2-12S. Had to install CP2102 drivers but works fine after that.
Vijay Sethi (verified owner) –
Love this Ai-Thinker Ai-WB2-12S. Built a smart switch with it. Works with Home Assistant perfectly.
Harshit Rathore –
Good quality Ai-Thinker Ai-WB2-12S. Flash memory is sufficient for most projects.
Jai Patel (verified owner) –
Superb Ai-Thinker Ai-WB2-12S! Using it for my weather monitoring station. WiFi range is impressive.
Kapil Choudhury (verified owner) –
Good quality Ai-Thinker Ai-WB2-12S. Flash memory is sufficient for most projects.
Manish Gupta (verified owner) –
Decent Ai-Thinker Ai-WB2-12S. Had to install CP2102 drivers but works fine after that.
Anand Bhat (verified owner) –
Perfect for my IoT project. This Ai-Thinker Ai-WB2-12S has excellent WiFi performance.
Rohan Goyal (verified owner) –
Nice Ai-Thinker Ai-WB2-12S for IoT prototyping. Breadboard compatible which is a plus.
Chetan Mishra –
Good quality Ai-Thinker Ai-WB2-12S. Flash memory is sufficient for most projects.