DA14531 Bluetooth Slave 5.1 Serial Port Module | FSC-BT691

Product Overview

FSC-BT691 is an ultra-low-power Bluetooth module that uses the Dialog BLE 5.1 chip DA14531, supports UART/I2C/SPI interfaces.

FSC-BT691 is an ultra small size Bluetooth 5.1 module with onboard antenna. The dismension is only 10mm *11.9mm *2mm,which provides users with ultra-high flexibility and multiple possibilities.

Support communicating with the FeasyBlue app and many other Bluetooth apps

Basic Parameter

Bluetooth Module Model

FSC-BT691

Bluetooth version

BLE 5.1

Chipset

DA14531

Dimension

10mm x 11.9mm x 2mm

Certifications

FCC、CE、IC、KC、TELEC、SRRC(BT691+Shield Case)

Transmit power

-19.5dBm ~ 2.5dBm

Interfaces

UART, I2C, SPI

Profiles

GATT Peripheral

Frequency

2.402-2.480 GHz

Power supply

1.65V-3.6V

Antenna

PCB onboard antenna, supports external antenna   

Power Consumption

1.6uA (Sleep Mode)

Storage Temperature

-40℃ to +85℃

Operating Temperature

-40℃ to +85℃

Main Features

● Qualified Bluetooth v5.1 specifications
● Postage stamp sized: 10mm x 11.9mm x 2mm
● Low power
● The default UART Baud rate is 115.2Kbps
● GAP, ATT, GATT, SMP, L2CAP profiles
● Bluetooth stack profiles: all BLE protocols
● Support SPI, UART, I2C interface
● Support the OTA upgrade
● Integrated temperature sensor
● Operating Temperature: -40°C to +85°C
● Available certifications: FCC、CE、IC、KC、TELEC、SRRC

Applications​

Health & Medical Devices

Home Automation

LE HID, Beacon

Industrial

Low power sensors

Firmware Options

Firmware No.

Application

Profiles Support

FSC-BT691

Data

GATT(Peripheral

FSC-BT691

Data

GATT(Client)

FSC-BT691

Other

Customization

Type Title Date
Datasheet
March 31, 2022
Programming User Guide
March 31, 2022

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