BL620 - Bluetooth BLE module with smartBASIC and Central Mode connectivity

BL620 BLE modules support Central mode connectivity.

The BL620 makes it easy to add single-mode Bluetooth Low Energy (BLE), also known as Bluetooth Smart™, to small, portable, power-conscious devices, including those powered by AAA or coin cell batteries.

The unique feature of this module is smartBASIC, an event-driven programming language that enables standalone operation of the module. smartBASIC on BL620 enables wireless connections to peripheral devices that are in turn connected to sensors so that the data can be collected via GATT operations. smartBASIC has been proven to speed time to market and significantly simplifies BLE integration for embedded devices.

Based on the award winning Nordic Semiconductor nRF51822 chipset, BL620 modules provide exceptionally low power consumption with outstanding wireless range, all within a compact footprint of 19 mm x 12.5 mm. The modules incorporate all the hardware and firmware required to support development of BLE Central mode applications, including:

  • Radio hardware
  • UART, SPI, I2C, ADC, and GPIO interfaces for connecting peripherals and sensors
  • A complete BLE software stack
  • Central role functionality with GATT client and server - Ability to connect up to four simultaneous connections
  • Custom Services to suit any application's needs
  • Series addition of a packaged USB Dongle - BL620-US

In addition to carrying FCC modular, IC, MIC, and CE approvals, BL620 modules are fully qualified as a Bluetooth End Products, enabling designers to integrate the modules in devices without the need for further Bluetooth Qualification testing.

For sales and technical development support from our in-house engineering team, please contact the Alpha Micro team.

  • Antenna Type
    Internal Antenna (BL620-SA), IPEX MHF4 connector (BL620-SC), or trace pin (BL620-ST)
  • Applications
    Medical Devices, AIDC, ePOS, Barcode Scanners, Industrial Cable Replacement, M2M connectivity, Automotive, Security Devices
  • BLE Features
    Generic Access, Battery Service, Device Information Service, Heart Rate Service, Health Thermometer Service, Immediate Alert Service, Link Loss Service, Tx Power Service, Blood Pressure Service
  • Bluetooth Version
    v4.0 Single Mode
  • Connector Type
  • Data Rate
    1 Mbps (over the air)
  • Development Kit Contents
    Development board and free Software Tools
  • Dimensions (L x W x H)
    19.00 x 12.50 x 3.00 mm (0.75 x 0.49 x 0.12 in)
  • Frequency
    2.402 - 2.480 GHz
  • Industries
    Automotive, Healthcare / Medical, Industrial / Production, Telecom, Computer / Gaming, Other
  • Logical Interfaces
  • Max Transmit Power
  • Product Benefits
    • Easy to interface with existing BL600 series Peripheral mode modules
    • Ultra low power consumption
    • Fast Time to Market
    • FCC, CE, IC, Taiwan (-SA version only) and Japan certified; other regulatory certifications on request
    • No external components required
    • Compact Footprint
    • Ability to connect up to four simultaneous connections
    • Custom Services to suit any application's needs
  • Product Line
    Bluetooth v4.0 Central Mode
  • Profiles
    ANY Custom Service (plus Blood Pressure, Heart Rate, Health Thermometer, Proximity, and Find Me included in sample apps library)
  • Protocols
    Any that can be implemented using smartBASIC
  • Receive Sensitivity
    -91dBm (typical)
  • Weight
    .035 oz(< 1g)
  • Wireless Specification
    Bluetooth Version 2.0
Part No.
Pack Sizes
BLE Module featuring smartBASIC (internal antenna)

Packs of 50


BLE Module featuring smartBASIC (internal antenna)

Tape & reel packaging

Tape & reel, 600 pcs
BLE Module featuring smartBASIC (IPEX MHF4 antenna connector)
Packs of 5

BLE Module featuring smartBASIC (IPEX MHF4 antenna connector)

Tape & reel packaging

Tape & reel, 600 pcs
BL620-ST-xx BLE Module featuring smartBASIC (trace pin)

BLE Module featuring smartBASIC (trace pin)

Tape & reel packaging

Tape & reel, 600 pcs
DVK-BL600-SA-xx Bluetooth development Kit for BL600-SA (Upgrade the BL600 module with BL620 firmware) Each
DVK-BL600-SC-xx Bluetooth development Kit for BL600-SC (Upgrade the BL600 module with BL620 firmware) Each
DVK-BL600-ST-xx Bluetooth development Kit for BL600-ST (Upgrade the BL600 module with BL620 firmware) Each
QPK-nRF5x-01 Laird development board for FW upgrade of BL6xx and RM1xx series wireless modules. Includes: programming board, 1 x USB-A to USB micro cable & 1 x 10-pin flexi cable. REACH & RoHS. Each

xx - Current firmware version at time of ordering

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Last updated: 21 May 2018