HOW DOES IT WORK?

Ai-WB2-12F Click is based on the Ai-WB2-12F, a WiFi and BLE module from Ai-Thinker Technology. At its center lies the BL602 chip, which serves as the primary processor. This chip equips the module with support for WiFi 802.11b/g/n and BLE 5.0 protocols, featuring a low-power 32-bit RISC CPU, 276KB of RAM, and a comprehensive range of peripheral interfaces such as SDIO, SPI, UART, I2C, IR Remote, PWM, ADC, DAC, PIR, and GPIO, among others. Its design is made for extensive application in the Internet of Things (IoT), wearable technology, smart home solutions, and more.

In terms of additional specifications, the module boasts an inbuilt PCB antenna covering a frequency range from 2400 to 2483.5MHz, alongside extensive WiFi security protocols, including WPS, WEP, WPA, WPA2 Personal, WPA2 Enterprise, and WPA3. It also supports BLE 5.0 and Bluetooth Mesh, various operational modes such as Station + BLE and Station + SoftAP + BLE, secure boot with ECC-256 signature mirroring, an AES encryption engine for 128/192/256-bit keys, a true random number generator, and a public key accelerator for extensive cryptographic operations. The module facilitates a variety of sleep modes, boasting a deep sleep current of just 12μA, and allows for easy setup with universal AT commands.

Moving on to the board's connectivity features, this Click board™ employs a UART interface for communication with the host MCU, using standard UART RX and TX pins to exchange AT commands. By default, it communicates at a baud rate of 115200bps. The Click board™ is additionally equipped with a USB type C connector, enabling direct power supply and configuration via a PC.

The board also incorporates a reset feature through the R5 resistor (disabled by default with unpopulated R5 resistor) connected to the EN pin of the mikroBUS™ socket, an EN button for module enabling, and a PROG button dedicated to firmware programming. An RGB diode serves as a status indicator, signaling the active I/O pin—red for IO14, green for IO17, and blue for IO3. Depending on the user's requirements, these pins are adaptable for various uses such as SPI, PWM, or ADC. The user-configurable I/O pins are not available by default. If you need to use it, please contact Ai-Thinker.

This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. Also, it comes equipped with a library containing functions and an example code that can be used as a reference for further development.

SPECIFICATIONS