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DFRobot BLE4.1 Module

SKU: TEL0120

BLE4.1 Module is DFRobot newly developed Bluetooth 4.1 transmission module, adhering to the same usage of Bluno, and increasing the star network function, KISS connection (Approach Connection). The new Bluetooth is designed based on BLE 4.1 technology. It has low power consumption and other special features. In the BLE transmission, the point-to-point output rate is 4Kbps, equivalent to the original Bluno twice the rate. BLE4.1 Module uses DA14681 high-performance BLE chip, it integrates advanced power management system, coming with 3.7V lithium battery charging circuit. It obtains power directly from the USB port. Support 400mA maximum charge current,

Front of BLE 4.1 module with antennas and Micro USB port-DFRobot product sku:TEL0120 image.

Downloadable Resources

  • Tech Specs

    • Specification

    Parameter Details
    Processor DA14681 (ARM Cortex-M0 CPU)
    Operating Voltage 3.3V
    USB Input Voltage 4.2V ~ 5.0V
    Lithium Battery Powered 3.7V
    USB Charging Support Chip comes with charging function
    Charging Current 10mA ~ 400mA (max)
    External Lithium Battery Capacity 20mAh ~ 500mAh (max)
    Low Power Consumption Only 30uA / MHz minimum 2uA
    Single I/O Port Max Output Current 4.5mA
    All I/O Ports Max Total Output Current 100mA
    Network Connection Modes Supports three modes (P2P connection, star network, tree network [Developing])
    Maximum Slave Connections 4 (simultaneous connection)
    Maximum Transfer Rate 4Kbps
    Flash 8Mbit
    OTP 64KB
    Data SRAM 128KB
    Cache SRAM 16KB
    ROM 128KB
    On-Chip Crystal 16MHz, 32.768KHz
    Power Management Modes Extended sleep, Deep sleep, Hibernation
    Digital I/O Ports 29
    Analog Inputs 8
    SPI 1
    I2C 2 (supports 100KHz and 400KHz two communication rates)
    UARTs 2
    PWM 6
    Audio Interface I2S / PCM master-slave interface
    IR Interface PWM
    USB Support USB1.1 (computer-side simulation into a serial port)
    Built-in Sensor Temperature sensor
    Transmit Power Consumption 3.4mA (TX), 3.1mA (RX)
    Operating Temperature -40 ℃ ~ 85 ℃
    Dimension 25 × 18 × 3 mm / 0.98 × 0.70 × 0.11 inches

    Pinout

    Pinout
    Pinout

    NOTE:

    • VBUS and GND are USB Power port; BAT and BAT- are battery power port.
    • There is a 0.1 ohm resistor between BAT- and GND. The battery can also be used directly between BAT and GND when in use

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