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Bluetooth module


BDE-BLEM301 is one of the most cost-efficient Bluetooth® 5.1 Low Energy Module in the field. Based on Dialog ultra-low power DA14531 SoC, it comprises a Cortex® M0+ MCU, 1Mbit on board Flash memory, a Bluetooth 5.1 Low Energy radio and a high efficiency PCB antenna in a single module.

The module can be used with or without an external MCU. It also offers flexible hardware interfaces for sensor applications. BDE-BLEM301 is compatible with Dialog DA14531 TINY™ Bluetooth Module - DA14531MOD. The same software tools and hardware kits can be used for BDE-BLEM301. It is empowered with Dialog BT5.1 qualified Bluetooth LE stack and SDK with a rich set of software functions & examples to kickstart your development.


Bluetooth 5.1 qualified (Bluetooth DID: D050903)

FCC/CE/RoHS certified

Integrated high-efficiency Antenna

Supports up to 3 BLE connections

16 MHz 32-bit Arm® Cortex® M0+

Memories: 1Mbit Flash, 48KB RAM, 144KB ROM, 32KB OTP

Rx current 2mA at 3V

Tx current 4mA at 3V at 0dBm

1.8uA at sleep with all RAM retained

Programmable Tx power from -19dBm to +2.2 dBm

-93 dBm receiver sensitivity

Quadrature decoder with 3 channels

4 channel 11-bit ENOB ADC

2 timers with PWM capabilities

Real-Time Clock

Built-in temperature sensor

Interfaces: 9 GPIOs, SPI, 2xUART, I2C

Operation: 1.8V - 3.3V, -40°C to +85°C

Dimensions: 12.5x14.5x2.1 mm

Compatible with Dialog DA14531MOD



Remote Controls

Proximity tags

Low Power Sensors



Serial port transmission

Smart home

Smart meters

Smart medical devices

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Product Briefs and Summaries
Name Date Version
BDE-BLEM301 Product Brief (165.85 KB) 01/01/2021 1.1

Ordering information

To purchase, please contact your local Dialog sales representative or

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