How to Use BW16-Kit: Examples, Pinouts, and Specs

The BW16-Kit by AI Thinker is a development kit based on the RTL8720DN chip, which is a highly integrated Wi-Fi and Bluetooth module that supports dual bands for Wi-Fi communication and low-energy Bluetooth. This kit is designed for Internet of Things (IoT) applications and can be used in a variety of scenarios, including smart home devices, wireless audio, and industrial control.

• Smart Home Automation
• IoT Nodes and Gateways
• Wireless Sensor Networks
• Remote Control Systems
• Wearable Electronics

• Wi-Fi Standard: IEEE 802.11 a/b/g/n/ac (Dual-band Wi-Fi 2.4GHz and 5GHz)
• Bluetooth Standard: Bluetooth 5.0
• Operating Voltage: 3.3V
• I/O Voltage Level: 3.3V
• Flash Memory: 2MB
• SRAM: 512KB
• Operating Temperature: -40°C to 85°C

Note: This is a simplified representation. Refer to the manufacturer's datasheet for the complete pinout and detailed descriptions.

1. Power Supply: Ensure that the BW16-Kit is powered with a stable 3.3V supply. Do not exceed the recommended voltage to prevent damage.

2. Serial Communication: Connect the TX and RX pins to a serial interface for programming and debugging. Use a USB-to-UART adapter if necessary.

3. GPIO: Utilize the general-purpose I/O pins for interfacing with sensors, actuators, or other peripherals as required by your application.

4. Reset: The RST pin can be used to reset the module. Connect a push-button to this pin for manual reset functionality.

• Always ensure that the power supply is clean and within the specified voltage range.
• When programming the module, ensure that the IO0 pin is set to the correct state to enter the programming mode.
• Use proper ESD precautions when handling the BW16-Kit to avoid electrostatic damage.
• Ensure that the antenna area is kept clear of metal objects to avoid interference with the wireless signals.

• Power Issues: If the module does not power on, check the power supply and connections.
• Connectivity Problems: Ensure the antenna is properly connected and not obstructed.
• Programming Errors: Verify that the correct drivers are installed and that the IO0 pin is set correctly for programming mode.

• Double-check wiring and solder joints for any loose connections or shorts.
• Use a multimeter to verify the voltage levels at the power supply and I/O pins.
• Consult the manufacturer's datasheet and user forums for specific troubleshooting advice.

Q: Can the BW16-Kit be used with an Arduino UNO?

A: Yes, it can be interfaced with an Arduino UNO using serial communication (UART) or other available I/O pins.

Q: What is the maximum range of the Wi-Fi and Bluetooth signals?

A: The range depends on various factors, including the environment and antenna used. Typically, Wi-Fi can reach up to 100 meters in open space, and Bluetooth range is around 10 meters.

Q: How do I update the firmware on the BW16-Kit?

A: Firmware updates can be done through the UART interface using the provided tools and instructions from AI Thinker.

Q: Is the BW16-Kit compatible with the Arduino IDE?

A: Yes, with the proper board support package installed, the BW16-Kit can be programmed using the Arduino IDE.

// Example code for interfacing BW16-Kit with Arduino UNO
#include <SoftwareSerial.h>

SoftwareSerial bw16Serial(10, 11); // RX, TX

void setup() {
  // Start the built-in serial port, for debugging
  Serial.begin(9600);
  // Start the software serial port, to communicate with the BW16-Kit
  bw16Serial.begin(115200);
}

void loop() {
  // Check if data has been received from the BW16-Kit
  if (bw16Serial.available()) {
    char c = bw16Serial.read();
    // Print any received data to the built-in serial port
    Serial.write(c);
  }

  // Check if data has been received from the built-in serial port
  if (Serial.available()) {
    char c = Serial.read();
    // Send any received data out through the BW16-Kit
    bw16Serial.write(c);
  }
}

Note: This example uses software serial for communication. For more robust applications, hardware serial is recommended.

Remember to consult the BW16-Kit datasheet and technical reference for more detailed information and advanced usage scenarios.