FSC-DB200 User Guide

[中文版]

This guide introduces how to use the FSC-DB200 Bluetooth Audio Data Transmission Application Development Board and provides more information about it.

Overview

FSC-DB200 is a plug-and-play development board specifically designed for the Arduino UNO. It facilitates the evaluation of Feasycom’s Bluetooth audio and data transmission modules that adopt the 13mm×26.9mm 52-Pin module (stamp hole package), such as the FSC-BT1026x series, FSC-BT1035, FSC-BT1038x series, and FSC-BT936E.

This development board integrates components including Type-C (supporting UART/USB/charging/power supply), audio input and output, a microphone, buttons, a reset button, 2.54mm-pitch pin headers, and status indicator lights. It provides Arduino developers with an efficient way to test the Bluetooth audio functions of the modules.

DB200

DB200

FSC-DB200 - Front

FSC-DB200 - Back

Scope of Application

Applies to:

  • FSC-BT1026x Series

  • FSC-BT1035

  • BT1036C

  • FSC-1038x Series

  • FSC-BT1057

  • FSC-BT1058

  • FSC-BT936E

  • BT955

  • BT958

  • FSC-BT806x Series etc.

and other Feasycom Bluetooth audio modules for application development

Functional Component

db200

NO.

Component

Description

1*

Type-C

Power the module/Communicate with the module

2

USB/UART

Choose UART to communicate with the module, or use the USB function of the module; not all modules have the USB function.

3

MIC_L/MIC_R

HFP (used during calls, with the L channel as default) and applications that require a microphone

4

Line_IN

Standard 3.5mm audio socket

5

Headphone

Standard 3.5mm headphone output, capable of driving 16/32 ohm speakers, with a maximum power of 60mW

6

Arduino Board Reset

Reset the extended Arduino board; it is empty-mounted by default.

7

Battery Power

Battery Interface (3.7V ~ 4.2V, do not exceed this voltage, otherwise the module will be damaged)

8

VOL+

Short press to increase volume / Long press for next track

9

VOL-

Short press to decrease volume / Long press for previous track

10

Power ON/OFF

Long press for 2 seconds to power on/off; (Reused function) Music playback: Short press to pause/play; (Reused function) Incoming call: Short press to answer, short press again to hang up

11

Arduino Expansion Pin

Arduino Board Expansion, Empty by Default

12

Arduino LED

Arduino Board Status Indication

13

Analog Audio Differential Output

Expansion Pins, Empty by Default

14

IPEX

Module External Antenna IPEX Connector

15

Module SMD Pad

It supports Bluetooth audio such as the FSC-BT1026x, FSC-BT1035, BT1036C, FSC-1038x, FSC-BT1057, FSC-BT1058, FSC-BT936E, BT955, etc.

16

Module Pin External Expansion

Module Pins 1~20: Expansion Pin Header for External Connection

17

TRBI200

TRBI200 Debugger Interface

18

Reset

Short press to reset the module

19*

VBUS

Short-circuiting: Used for battery charging, module upgrading, and fixed-frequency applications

20*

Power Supply Button

Down: Powered by USB
Up: Powered by the battery

21

LED

LED(0): Blue LED fast blinking is pairing, steady on indicates connected.
LED(1): Green LED steady on indicates SPP/BLE is connected..

Battery Charging

The Type-C (Component 1), VBUS (Component 19), and Power Supply Button (Component 20) are used in combination to enable battery charging, with a maximum current of 200mA.

General, this function is disabled by default.

Note: Not all modules support battery charging.

What you need

Required Hardware

  • 1 x FSC-DB200-BT1026C : FSC-DB200 development board with FSC-BT1026C (optional) integrated

  • 1 x USB-to-Type-C data cable

  • 1 x PC (Windows / Mac)

  • 1 x Mobile phone or Music player

  • 1 x 3.5mm TRS Male-Male Auxiliary Cable (Optional)

  • 1 x Bluetooth speaker or wired audio input Bluetooth headset (Optional)

Software and Setup

  • Serial Driver： CP210x_Universal Driver for Windows PC, generally plug-and-play, install this driver if the PC fails to recognize the device in specific environments.

  • Feasycom Serial Port Tool : A serial communication analysis tool based on Windows PC.

  • FeasyBlue ：Feasycom APP & SDK resource supporting Android and iOS platforms, which enables functions such as Bluetooth BLE & SPP data communication test, Feasycom module firmware version reading, OTA upgrade, parameter configuration, etc.

  • Communication Interface：UART

  • Serial Configuration：115200/8/N/1 (General default for Feasycom firmware)

Hardware Access

Power-on Options

The development board can use any of the following power supply methods:

  • Type-C Power Supply (Default)

  • 3V3 / GND Pin Power Supply

  • Battery Power Supply

Note : Do not connect the above power supply modes simultaneously, as this may damage the development board and/or the power supply.

Hardware Access

Type-C Connection

  • Before power-on, please confirm that the development board is intact and that all components are not loose or stuck.

  • Connect the development board to the PC using a USB-to-Type-C cable.

  • For the USB/UART switch toggle (Component 2): if only USB power supply is needed, toggle it to the USB mode; if both USB power supply and virtual serial port generation are required, toggle it to the UART mode.

  • Press down the power supply button (Component 20) to switch to the USB power supply mode.

  • Press and hold the Bluetooth module on/off control button (Component 10) for 3 seconds to turn it on.

  • After power-on, the LED0 light turns on and flashes slowly, indicating that the development board is powered on and ready for debugging.

Quick Start

Hardware Access and Start

Connect the Type-C port (Component 1) of the development board (FSC-DB200-BT1026C) to the PC using a USB-to-Type-C data cable.

Toggle the USB/UART switch (Component 2) to the UART position, press the power supply button (Component 20) to switch the circuit to USB power supply mode, and press and hold the Bluetooth module on/off control button (Component 10) for 3 seconds to turn it on.

The blue light of LED0 flashing slowly indicates that the Bluetooth module FSC-BT1026C has been started successfully.

Serial Port Recognition

After the FSC-DB200-BT1026C hardware is successfully connected, it supports plug-and-play. The PC side will detect the USB serial port device and generate a virtual COMx.

AT - Serial Port Communication Test

On the PC side, open Feasycom Serial Port Tool . Either automatically detect or manually select the corresponding serial port (COMx), set the matching baud rate(Baud) , e.g., 115200 (General default for Feasycom firmware) , check for New Line .

Send the serial port communication test command AT , if the response is OK, it indicates that the serial communication test is successful.

Command

AT\r\n

Response

\r\nOK\r\n

Description

Tests UART communication between the host and the module, when power is on or the baud rate is changed.

Example:

Send:    <<AT\r\n
Response:>>\r\nOK\r\n

Application Examples

Audio Sink and Source Mode

Application Diagram

db200

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