Ai-Thinker BW20-12F 2.4G+5.8G Dual-Band WIFI+BLE5.0 Module
The Ai-Thinker BW20-12F 2.4G+5.8G Dual-Band WIFI+BLE5.0 Module is a cutting-edge wireless communication solution designed for a wide range of applications, including Internet of Things (IoT) devices, smart home systems, wearable electronics, and mobile devices. Built around the advanced RTL8711 series chipset, this module supports dual-band Wi-Fi operating at both 2.4 GHz and 5 GHz frequencies, alongside Bluetooth 5.0, providing robust, high-speed, and flexible connectivity options for modern electronic designs.
Features:
- Support for the 802.11a/b/g/n protocol.
- Support for dual-frequency 2.4GHz or 5GHz.
- Supports the HT20 / HT40 mode.
- Support for Bluetooth 5.0.
- Support for BLE Long Range.
- The Bluetooth supports a high-power mode LE data length extension.
- Support for link layer privacy.
- Support for the hardware encryption engine Integrated dual-core MCU, up to 330 MHz.
- Abundant interfaces, with 17 flexible IO ports.
- Wi-Fi and Bluetooth share the same antenna.
- Support secondary development, support programming in Linux environments.
Specifications:
| Category | Specification |
|---|---|
| Model | BW20-12F |
| Package | SMD-22 |
| Dimensions | 24mm×16mm×3mm |
| Antenna | IPEX connector (1st generation) |
| Frequency Range | 2400–5825 MHz |
| Operating Temp | -40°C to +85°C |
| Storage Temp | -40°C to +125°C (<90% RH) |
| Power Supply | 3.0–3.6 V (Typical: 3.3 V), Current >500 mA |
| Interfaces | UART (Default: 115200 bps), GPIO (17 default), ADC, PWM, I²C, SPI, SDIO, IR, SWD, USB |
| Bluetooth | BLE 5.0 |
| SPI Flash | Default: 4 MB, Max Supported: 16 MB |
Pin Configuration:
| No. | Name | Function description |
|---|---|---|
| 1 | PB17 | TOUCH2_ADC2/SPI1_CS/SD_D3 |
| 2 | PB18 | TOUCH1_ADC1/SPI1_CLK/SD_CMD |
| 3 | EN | Chip enable pin (pull-up to activate) |
| 4 | PB19 | TOUCH0_ADC0/SPI1_MOSI/SD_CLK |
| 5 | LOG_RX | UART_LOG_RXD (Firmware download RX) |
| 6 | PB20 | SPI1_MISO/SWD_CLK/SD_D0 |
| 7 | PB21 | SPI1_CS/SWD_DAT/SD_D1 |
| 8 | 3V3 | 3.3V power supply (VDD) |
| 9 | PA8 | PSRAM_DQ5/TIM8_TRIG |
| 10 | PA12 | SPI0_CS/SD_D2/TIM9_TRIG |
| 11 | PA13 | Not available (used by internal Flash) |
| 12 | PA16 | Not available (used by internal Flash) |
| 13 | DP (PA29) | USB_DP/SPI1_CLK/SD_CLK/FSDP |
| 14 | DM (PA28) | USB_DM/SPI0_MISO/SD_CMD/FSDM |
| 15 | GND | Ground |
| 16 | PA26 | SPI0_CLK/SD_D2 |
| 17 | LOG_TX | UART_LOG_TXD (Firmware download TX) |
| 18 | PA27 | SPI0_MOSI/SD_D3 |
| 19 | PA30 | SPI1_MOSI/SWD_CLK/SD_D0 (Default: SWD DATA) |
| 20 | PA31 | SPI1_MISO/SWD_DAT/SD_D1 (Default: SWD DATA) |
| 21 | PB30/RXD | UART1_RXD |
| 22 | PB31/TXD | UART1_TXD |
Applications:
- Smart home automation systems.
- Industrial IoT devices.
- Wireless sensors and monitoring systems.
- Wearable technology.
- Smart appliances and consumer electronics.
- BLE beacon and mesh networking systems.
- Remote control and telemetry devices.
Package Include:
- 1x Ai-Thinker BW20-12F 2.4G+5.8G Dual-Band WIFI+BLE5.0 Module.
