Ai-Thinker Ai-WB2-32S WIFI & BLE 5.0 Module
The Ai-Thinker Ai-WB2-32S WIFI & BLE 5.0 Module is a highly versatile wireless communication module engineered for a broad spectrum of Internet of Things applications. Powered by the BL602 chip, a robust 32-bit RISC CPU, this module delivers efficient performance while maintaining low power consumption, making it an excellent choice for battery-operated devices. It supports Wi-Fi 802.11b/g/n protocols and Bluetooth Low Energy (BLE) 5.0, enabling seamless connectivity to the internet and communication with other Bluetooth-enabled devices.
Features:
- The package is SMD-38.
- 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、Station + SoftAP + BLE.
- Support 32-bit RISC CPU,276KB RAM.
- Secure startup, supports mirroring with ECC-256 signature.
- Support QSPI/SPI Flash On-The-Fly AES Decryption, support AES 128 CTR.
- 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.
- 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.
Specifications:
| Specification | Details |
|---|---|
| Model | Ai-WB2-32S |
| Package | SMD-38 |
| Size | 25.5mm 18mm × 3mm (±0.2mm) |
| Antenna | On-board PCB antenna, IPEX connector |
| Frequency | 2400 ~ 2483.5 MHz |
| Operating Temperature | -40°C ~ 85°C |
| Storage Temperature | -40°C ~ 125°C, < 90% RH |
| Power Supply | Voltage: 2.7V ~ 3.6V, Supply current ≥500mA |
| Interfaces | UART, GPIO, ADC, PWM, I2C, SPI |
| IO Count | 15 |
| UART Rate | Default: 115200 bps |
| Security | WPS, WEP, WPA, WPA2 Personal, WPA2 Enterprise, WPA3 |
| Flash | Default: 4MB, Supports expansion |
Pin Configuration:
| Pin No. | Name | Function |
|---|---|---|
| 1, 15, 38 | GND | Ground |
| 2 | VDD | 3.3V power supply (External power supply current ≥500mA recommended) |
| 3 | EN | Chip enable pin (Active-high) |
| 4, 6, 7, 16-24, 26, 29, 32, 33, 37 | NC | Not connected (Do not use) |
| 5 | GPIO11 | GPIO11 / SPI_SCLK / IIC_SDA / ADC_CH10 / JTAG_TDI/TDO |
| 8 | IO14 | GPIO14 / SPI_SS / IIC_SCL / PWM_CH4 / ADC_CH2 / JTAG_TCK/TMS |
| 9 | IO17 | GPIO17 / SPI_MOSI/MISO / IIC_SDA / PWM_CH2 / JTAG_TCK/TMS |
| 10 | IO3 | GPIO3 / SPI_SCLK / IIC_SDA / PWM_CH3 / JTAG_TDO/TDI |
| 11 | IO20 | Not recommended (Shared with Flash) – GPIO20 / SPI_MOSI/MISO / IIC_SCL / PWM_CH0 / JTAG_TMS/TCK |
| 12 | IO22 | Not recommended (Shared with Flash) – GPIO22 / SPI_SS / IIC_SCL / PWM_CH2 / JTAG_TCK/TMS |
| 13 | IO0 | Not recommended (Shared with Flash) – GPIO0 / SDIO_CLK / SPI_MOSI/MISO / IIC_SCL / PWM_CH0 / JTAG_TMS/TCK |
| 14 | IO21 | Not recommended (Shared with Flash) – GPIO21 / SPI_MOSI/MISO / IIC_SDA / PWM_CH1 / JTAG_TDI/TDO |
| 25 | IO8/NC | Default NC (Not connected, unavailable) |
| 27 | IO4 | GPIO4 / SPI_MOSI/MISO / IIC_SCL / PWM_CH4 / ADC_CH1 |
| 28 | IO2 | Not recommended (Shared with Flash) – GPIO2 / SPI_SS / IIC_SCL / PWM_CH2 |
| 30 | IO1 | Not recommended (Shared with Flash) – GPIO1 / SPI_MOSI/MISO / IIC_SDA / PWM_CH1 |
| 31 | IO5 | GPIO5 / SPI_MOSI/MISO / IIC_SDA / PWM_CH0 / ADC_CH4 / JTAG_TMS/TCK |
| 34 | RXD | RXD / GPIO7 / SPI_SCLK / IIC_SDA / PWM_CH2 / JTAG_TDO/TDI |
| 35 | TXD | TXD / GPIO16 / SPI_MOSI/MISO / IIC_SCL / PWM_CH1 / JTAG_TMS/TCK |
| 36 | IO12 | GPIO12 / SPI_MOSI/MISO / IIC_SCL / PWM_CH2 / ADC_CH0 / JTAG_TMS/TCK |
Application:
- Battery-powered IoT sensors and controllers.
- Smart home devices (lighting, HVAC, locks).
- Wearable electronics with wireless connectivity.
- Industrial monitoring and telemetry.
- Secure wireless peripherals and gateways.
- Prototyping and development using AT commands or embedded firmware.
Package Include:
- 1x Ai-Thinker Ai-WB2-32S WIFI & BLE 5.0 Module.
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