1. Product Introduction
▫️ Overview
BW Series
- BW20: A dual-band Wi-Fi + BLE 5.0 module series based on Realtek RTL8711, supporting dual-band (2.4/5GHz) 802.11a/b/g/n WLAN. Integrates dual-core MCU: ARM V8.1 (compatible with Cortex-M55, up to 345MHz) and ARM V8M (compatible with Cortex-M23).
▫️ Highlights
- Wi-Fi Mesh networking via R-Mesh
- Dual-band 2.4 GHz / 5 GHz Wi-Fi 4 (802.11a/b/g/n, HT20/HT40)
- Built-in BLE 5.0; Wi-Fi and Bluetooth share one antenna and can coexist
- Dual-core MCU: high-performance core up to 345 MHz plus a low-power core
- BLE advertising/connection in sleep; up to 3 Peripheral and 8 Central connections
- 802.11k/v/r fast roaming
- Wi-Fi CSI information
- Factory Combo-AT middleware firmware; ready to use over UART
- Certifications: SRRC, CE-RED, FCC
- Two package options; onboard antenna / IPEX
- BLE Long Range and Bluetooth high-power mode
- LE Data Length Extension and Link Layer Privacy
- Hardware crypto engine; TrustZone-M, Secure Boot, and Flash encryption
- 17 configurable IOs: UART / GPIO / ADC / PWM / I2C / SPI / SDIO / IR / SWD / USB
- I2S, SPI Slave, OSPI Master, SDIO 2.0 Device; can work as an SDIO NIC
- Flash 4 MB by default, optional 8 / 16 MB; optional 4 MB PSRAM
- Wi-Fi DTIM keep-alive, Wi-Fi roaming, and Wi-Fi Cast
- Security: WPA/WPA2/WPA3 Personal + Enterprise (EAP-TLS / TTLS / PEAP / FAST)
- Secondary development with Ameba-RTOS (Linux / Windows)
▫️ Selection Table
Type
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Parameter
| Product Image |
| Wireless Protocol |
| Chip |
| Module Flash Size (Mbits) |
| Frequency Band (MHz) |
| Package |
| Dimensions (L×W×H) (mm) |
| Operating Temp Range (℃) |
| Storage Temp Range (℃) |
| Antenna Type |
| Available GPIO |
| Min Voltage (V) |
| Max Voltage (V) |
| Typical Voltage (V) |
| Min Power Current (mA) |
| Rx Current (mA) |
| Deep Sleep Current (μA) |
| Certifications |
| Max TX Power (dBm) |
| Modulation |
2. About Modules
| Module | Datasheets | PCB Package | Schematic |
|---|---|---|---|
| BW20-12F | View | Download | / |
| BW20-07S | View | Download | / |
| BW20-12F-Kit | View | / | Download |
3. Firmware Related
▫️ Firmware & AT Command Sets
| Module | Firmware ID | Firmware Description | Version | Download Link | AT Commands |
|---|---|---|---|---|---|
| BW20 Series | ⭐3452 | Combo-AT Middleware Standard FW | V4.18_P1.0.22 | Download | View |
4. Development Guide
▫️ Secondary Development Guide
| Resource Type | Link |
|---|---|
| C Programming SDK Source | GitHub |
| C Programming SDK Guide (Offline) | Download |
| Firmware Serial Upgrade/Flashing Tool | Download |
5. Test Reports
▫️ Power Consumption Test Reports
| Module | Test Report |
|---|---|
| BW20-07S | View |
| BW20-12F | View |
▫️ Hardware Reliability Test Reports
| Module | Test Report |
|---|---|
| BW20-07S | View |
| BW20-12F-Kit | View |
6. Certification Related
▫️ Certificates
- Series Certificates: View