BW16 RTL8720DN Dual-Band Wi-Fi Module Price in Bangladesh

The BW16 RTL8720DN Dual-Band Wi-Fi Module is a powerful wireless IoT development module based on the Realtek RTL8720DN System-on-Chip (SoC). Designed for modern embedded applications, the BW16 integrates dual-band Wi-Fi (2.4GHz and 5GHz), Bluetooth 5.0 Low Energy (BLE), dual ARM processors, onboard memory, and multiple communication interfaces into a compact and easy-to-use module. Its high processing capability, low power consumption, and versatile wireless connectivity make it an excellent solution for smart home devices, industrial automation, IoT gateways, wireless sensors, robotics, and embedded control systems.

Unlike many entry-level Wi-Fi modules that support only the crowded 2.4GHz band, the BW16 offers both 2.4GHz and 5GHz Wi-Fi, allowing developers to build applications with improved wireless flexibility, reduced interference, and higher network performance where 5GHz infrastructure is available. This dual-band capability is particularly useful for smart homes, office automation, industrial monitoring, and wireless data acquisition systems.

At the heart of the module is the RTL8720DN SoC, which combines a high-performance ARM Cortex-M4F compatible processor with a low-power Cortex-M0 compatible processor. The dual-core architecture enables efficient multitasking by handling real-time application processing and wireless communication simultaneously while maintaining low energy consumption. This makes the BW16 suitable for battery-powered IoT devices as well as always-on embedded systems.

The module supports IEEE 802.11 a/b/g/n Wi-Fi standards with both HT20 and HT40 modes, while Bluetooth connectivity is provided through Bluetooth Low Energy (BLE) 5.0, supporting both central and peripheral operation. Wi-Fi and Bluetooth share a single antenna using an integrated coexistence mechanism, allowing both wireless technologies to operate efficiently without significant interference.

The BW16 exposes multiple peripheral interfaces including GPIO, UART, SPI, I2C, PWM, ADC, and SWD, allowing easy integration with displays, sensors, relays, motors, EEPROMs, GPS modules, RFID readers, cameras, and numerous other electronic peripherals. Developers familiar with Arduino-style programming can also work with BW16 using compatible SDKs and supported development environments, making it an attractive alternative for many wireless embedded projects.

Security is another major advantage of the RTL8720DN platform. The chip integrates hardware encryption engines supporting AES, DES, and SHA, secure boot functionality, TrustZone-M security architecture, and flash protection mechanisms. These features make it suitable for IoT applications requiring secure communication and firmware protection.

The BW16 is widely used in smart home automation, wireless sensor networks, industrial IoT, environmental monitoring, agricultural automation, robotics, wearable electronics, cloud-connected devices, remote data logging, wireless controllers, and educational embedded systems.

Its combination of dual-band Wi-Fi, Bluetooth 5.0, powerful dual-core architecture, extensive peripheral support, and low power consumption makes the BW16 RTL8720DN Dual-Band Wi-Fi Module an excellent development platform for engineers, students, makers, and professional IoT developers.

🔍 What is the BW16 RTL8720DN Dual-Band Wi-Fi Module?

The BW16 RTL8720DN is a wireless IoT development module that integrates:

• Dual-Band Wi-Fi (2.4GHz & 5GHz)
• Bluetooth 5.0 BLE
• Dual-Core ARM processors
• Multiple GPIO interfaces
• Hardware encryption
• Low-power operation

It enables developers to create smart connected devices for wireless communication and IoT applications.

✨ Key Features of BW16 RTL8720DN Dual-Band Wi-Fi Module

• Realtek RTL8720DN SoC
• Dual-Band 2.4GHz & 5GHz Wi-Fi
• Bluetooth 5.0 BLE
• Dual-Core ARM architecture
• High-speed wireless communication
• Low power consumption
• Hardware AES/DES/SHA encryption
• Secure Boot support
• TrustZone-M security
• GPIO expansion
• UART interface
• SPI interface
• I2C interface
• PWM outputs
• ADC inputs
• SWD debugging support
• PCB onboard antenna
• Compact design
• Arduino-compatible development support
• Suitable for IoT and embedded applications

⚙️ Technical Specifications

• Product Type: Wi-Fi + Bluetooth Development Module
• Model: BW16
• Main Chip: Realtek RTL8720DN
• Wi-Fi Standard: IEEE 802.11 a/b/g/n
• Frequency Bands: 2.4GHz & 5GHz
• Bluetooth Version: BLE 5.0
• Processor: ARM Cortex-M4F Compatible + ARM Cortex-M0 Compatible
• Flash Memory: Typically 2MB (some variants 4MB)
• Operating Voltage: 5V input (development board)
• GPIO: Multiple programmable GPIO pins
• Communication Interfaces:
  • UART
  • SPI
  • I2C
  • PWM
  • ADC
  • SWD
• Antenna: Onboard PCB Antenna
• Operating Temperature: -40°C to +85°C
• Applications: IoT, Smart Home, Industrial Automation, Robotics, Wireless Embedded Systems

⚡ Working Principle of BW16 RTL8720DN Dual-Band Wi-Fi Module

The RTL8720DN integrates wireless communication hardware, processing cores, memory, and peripheral interfaces within a single SoC. The high-performance processor executes application code while the low-power processor manages background wireless operations and power-saving functions.

The Wi-Fi subsystem enables communication over either the 2.4GHz or 5GHz WLAN band, while the Bluetooth 5.0 controller provides short-range wireless connectivity for sensors, smartphones, and other BLE devices. Developers can control external hardware through GPIO, UART, SPI, I2C, PWM, and ADC interfaces, enabling complete embedded IoT solutions.

🔧 Applications of BW16 RTL8720DN Dual-Band Wi-Fi Module

• Smart Home Automation
• IoT Development
• Industrial Automation
• Wireless Sensor Networks
• Environmental Monitoring
• Agricultural Automation
• Smart Lighting
• Robotics Projects
• Remote Data Logging
• Cloud Monitoring Systems
• Home Security Systems
• Smart Appliances
• Medical Monitoring Devices
• Educational Electronics Projects
• Embedded Wireless Systems

✅ Advantages of BW16 RTL8720DN Dual-Band Wi-Fi Module

• Dual-band Wi-Fi support
• Bluetooth 5.0 connectivity
• Powerful dual-core processing
• Low power consumption
• High wireless performance
• Strong security features
• Rich peripheral interfaces
• Compact module design
• Easy embedded integration
• Suitable for professional IoT development

⚠️ Limitations

• 5GHz Wi-Fi range is generally shorter than 2.4GHz.
• Some Arduino libraries designed for ESP32 may not be directly compatible.
• Advanced development may require familiarity with the RTL8720DN SDK.
• GPIO availability depends on the module version.

🛠️ Installation / Usage Tips

• Use a stable 5V power supply for development boards.
• Install the appropriate BW16 board package before programming.
• Select the correct COM port and board settings in the IDE.
• Keep the PCB antenna unobstructed for better wireless performance.
• Avoid placing metal objects close to the antenna.
• Use secure Wi-Fi credentials for IoT deployments.
• Update firmware when newer SDK versions become available.
• Test wireless communication before deploying the final project.

💡 Why Choose BW16 RTL8720DN Dual-Band Wi-Fi Module

The BW16 RTL8720DN Dual-Band Wi-Fi Module offers an outstanding combination of dual-band wireless networking, Bluetooth 5.0, dual-core processing, hardware security, and extensive peripheral support. It is an excellent platform for developing modern IoT devices, embedded controllers, wireless sensors, and smart automation systems while providing better wireless flexibility than many single-band alternatives.

🛒 Why Buy from Electroxbd

• 100% Quality Tested Products
• Trusted Source for Reliable Electronic Parts
• Fast Delivery Across Bangladesh
• Competitive Pricing
• Genuine IoT Development Modules
• Dedicated Technical Support
• Perfect for Students, Engineers, Researchers, and Makers

❓ Frequently Asked Questions (FAQ)

What is the BW16 RTL8720DN Dual-Band Wi-Fi Module used for?

It is used for IoT, smart home automation, wireless sensor networks, robotics, industrial automation, and embedded wireless development projects.

Does the BW16 support both 2.4GHz and 5GHz Wi-Fi?

Yes, the RTL8720DN supports dual-band Wi-Fi, allowing operation on both 2.4GHz and 5GHz wireless networks.

Does the BW16 include Bluetooth?

Yes, it features Bluetooth 5.0 Low Energy (BLE) with support for both central and peripheral modes.

Can the BW16 be programmed for Arduino-based projects?

Yes, the module is supported by compatible development environments and can be used for Arduino-style embedded development alongside vendor SDKs.

Where can I buy the BW16 RTL8720DN Dual-Band Wi-Fi Module in Bangladesh?

You can buy the BW16 RTL8720DN Dual-Band Wi-Fi Module from Electroxbd, a trusted electronics components supplier in Bangladesh.