>>>>> BW16 development board project-development using Arduino

BW16 Introduction:

BW16 is a dual-band Wi-Fi + Bluetooth SoC module developed based on RTL8720DN. BW16 supports dual-band (2.4GHz or 5GHz) WLAN and low-power Bluetooth 5.0;

It integrates ARM V8 (Cortex-M4F compatible) high-performance MCU, ARM V8M (Cortex-M0 compatible) low-power MCU, WLAN (802.11 a/b/g/n), MAC, Bluetooth baseband and RF baseband.

Provides a set of configurable GPIO ports for controlling different peripheral devices.

BW16 also integrates internal memory, supports simple application development, and can realize complete Wi-Fi and BT5.0 protocol functions.

BW16 serial WiFi features:

* Support 802.11a/b/g/n 1x1, 2.4GHz or 5GHz
* Support HT20/HT40 mode
* Support low-power beacon listening mode, low-power receiving mode, low-power suspend mode
* Built-in AES/DES/ SHA hardware engine
* supports TrustZone-M, supports secure boot
* supports SWD debug port access protection and forbidden mode
* supports BLE and BT5.0
* Bluetooth supports high power mode (7dBm, shares the same PA with Wi-Fi)
* Wi-Fi Shares the same antenna with BT
* Supports STA/AP/STA+AP working mode
* Supports Android and IOS Smart Config (APP)/AirKiss (WeChat) One-click network distribution
* Supports serial port local upgrade and remote firmware upgrade (FOTA)

BW16 built-in AT commands:

Log serial port:
Log serial port is mainly used to output log
TX:PA_7 RX:PA_8
Baud rate: 115200

AT command serial port uart0
AT command serial port is used to input AT commands and view the returned results
TX:PB_1 RX:PB_2
Baud rate 38400
Note that the AT command ends with a newline character ( )
The minimum system needs to connect VCC, GND and AT serial port to operate .

The latest official firmware can be downloaded from https://docs.ai-thinker.com/rtl87xx

The first time you get the firmware, it may not be the latest. It is recommended to use the AT command to check the current version number first.

If it is the latest version, no update is required.

AT command:

You can refer to the official website AT instructions for other operations.

Firmware update:

Official tool: https://github.com/ambibot/ambd_sdk/tree/master/tools/AmebaD/Image_Tool

For firmware update, please refer to the document in the attachment for detailed burning steps.