Functional Description

[中文版]

Default Configuration

Name

Feasycom

UART Baudrate

115200/8/N/1

GPIO Indications

LED

Pin

Status

Description

Pin 17

2Hz Square Wave

Bluetooth Disconnected

Pin 17

High Level

Bluetooth Connected

Connection Status

Pin

Status

Description

Pin 18

Low Level

Bluetooth Disconnected

Pin 18

High Level

Bluetooth Connected

GATT Service

Type

UUID

Permission

Description

Service

0xFFF0

Throughput transmission service

Write

0xFFF2

Write,
Write Without Response

Sent from APP to Module

Notify

0xFFF1

Notify

Sent from Module to APP

Working Mode

Throughput Mode

  • Bluetooth Not Connected: Data received via UART is parsed as AT commands.

  • Bluetooth Connected: All data received via UART is sent as-is to the remote Bluetooth device.

Command Mode

  • Bluetooth Not Connected: Data received via UART is parsed as AT commands.

  • Bluetooth Connected: Data received via UART is still parsed as AT commands. Data must be sent to the remote device using AT commands, e.g., AT+LESEND.

Low Power Consumption

The module supports one low-power mode: UART Wake-up Mode.

UART Wake-up Mode

  • Command Configuration : AT+LPM=1

  • Sleep Method :

    If there is no data communication via the UART for more than 5 seconds, it will automatically enter sleep mode.

    After entering sleep mode, the UART will exit sleep mode when the first frame of data is received.

  • Description :

    The first frame of data upon wake-up will be lost.

    Simple logic, saving IO resources.

Data Transmission Rate

Baud Rate

Data Packet (Size)

Transmission Interval

Connection Interval

Transmission Method

Rate

921600

244

20ms

7.5ms

Notify

12000 Byte/s