DFRobot BLE4.1 Handbuch - Seite 2

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Specification

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Processor: DA14681 (ARM Cortex-M0 CPU)

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Operating Voltage: 3.3V

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USB input Voltage: 4.2V ~ 5.0V

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Lithium battery powered: 3.7V

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Support USB charging (chip comes with charging function)

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Charging current: 10mA ~ 400mA (max)

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Allow external lithium battery capacity: 20mAh ~ 500mAh (max)

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Supports low power consumption: only 30uA / MHz minimum 2uA

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Single I / O port maximum output current: 4.5mA

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Allows I / O port maximum output total current: 100mA

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Supports three network connection modes (P2P connection, star network, tree network [Developing])

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Maximum number of slave connections: 4 (simultaneous connection)

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Maximum transfer rate of 4Kbps

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Flash: 8Mbit

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64KB OTP

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128KB Data SRAM

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16KB Cache SRAM

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128KB ROM

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On-chip crystal: 16MHz, 32.768KHz

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Three power management modes: Extended sleep, Deep sleep, Hibernation

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29 digital I / O ports

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8 analog inputs

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1 SPI

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2 I2C (supports 100KHz and 400KHz two communication rates)

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2 UARTs

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6 PWM

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I2S / PCM master-slave interface

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IR interface (PWM)

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Support USB1.1 (computer-side simulation into a serial port)

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Built-in temperature sensor

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Transmit power consumption: 3.4mA (TX) 3.1mA (RX)

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Operating temperature: -40

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Dimension: 25 * 18 * 3 mm/ 0.98 * .70 * 0.11 inches

Layout

~ +85

Fig1: DFRobot_BLE4.1_Module PinOUT