TEL0120

TEL0120 Datasheet


DFRobot BLE4.1 Module SKU TEL0120

Part Datasheet
TEL0120 TEL0120 TEL0120 (pdf)
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DFRobot BLE4.1 Module SKU TEL0120

Introduction

BLE4.1 Module is DFRobot newly developed Bluetooth 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 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,
• Support BLE master and slave switch
• Support Bluetooth serial data transmission
• Support Bluetooth point-to-point wireless programming
• Support Bluetooth multi-device cascade up to 4
• Support Arduino Bluetooth library support for multi-Bluetooth connection
• Support low power consumption Bluetooth standby 25uA interrupt 70uA
• Two-way interrupt wake up
• * BLE4.1 wake up controller via P4_2 high level wake up
• * The controller wakes up BLE4.1 via WAKEUP low level wake
• Support KISS connection method Approach Connection
• Support Bluetooth firmware update
• Support lithium battery powered
• Support USB to charge the lithium battery
• LED status indicator

Specification
• Processor DA14681 ARM Cortex-M0 CPU
• Operating Voltage 3.3V
• USB input Voltage 4.2V ~ 5.0V
• Lithium battery powered 3.7V
• Support USB charging chip comes with charging function
• Charging current 10mA ~ 400mA max
• Allow external lithium battery capacity 20mAh ~ 500mAh max
• Supports low power consumption only 30uA / MHz minimum 2uA
• Single I / O port maximum output current 4.5mA
• Allows I / O port maximum output total current 100mA
• Supports three network connection modes P2P connection, star network, tree network [Developing]
• Maximum number of slave connections 4 simultaneous connection
• Maximum transfer rate of 4Kbps
• Flash 8Mbit
• 64KB OTP
• 128KB Data SRAM
• 16KB Cache SRAM
• 128KB ROM
• On-chip crystal 16MHz, 32.768KHz
• Three power management modes Extended sleep, Deep sleep, Hibernation
• 29 digital I / O ports
• 8 analog inputs
• 1 SPI
• 2 I2C supports 100KHz and 400KHz two communication rates
• 2 UARTs
• 6 PWM
• I2S / PCM master-slave interface
• IR interface PWM
• Support USB1.1 computer-side simulation into a serial port
• Built-in temperature sensor
• Transmit power consumption 3.4mA TX 3.1mA RX
• Operating temperature -40 ~ +85
• Dimension 25 * 18 * 3 mm/ * * inches

Layout

Fig1 DFRobot_BLE4.1_Module PinOUT

Fig2 DFRobot_BLE4.1_Module PinMap

Note VBUS and GND are USB Power port BAT+ and BAT- are battery power po rt.

Note There is a ohm resistor between BAT- and GND. The battery can also be used directly between BAT + and GND when in use
• Dimension 25 x 18 x 3 mm

Fig3 DFRobot_BLE4.1_Module Dimension

AT Command

To get a ‘better’ Bluetooth experience on BLE modules, we highly recommand you to update the newest firmware first.

AT is the abbreviation of attention. AT command is the communication command used to configure Bluetooth parameters. It begins with AT, end with <CR+LF> carriage return and line feed .
• NOTE <CR+LF> is not a part of AT Command.

AT Command List

AT Command AT+ROLE=<X>

Function

Set Bluetooth mode

Parameters <X> “?” Query Bluetooth working mode “ROLE_CENTRAL” Set as the central device “ROLE_PERIPHERAL” Set as the peripheral device

AT+NETWORK=<X>

Set network mode
“?” Query the network mode “P2P” Set to peer to peer connection “STAR” Set to star network

Set the

AT+MIN_INTERVAL=<X>
minimum communication
“?”

Query
current
minimum
communication
interval
interval

Set the

AT+MAX_INTERVAL=<X>mcoamxmimuunmication “?” Query the current maximum communication interval
interval

AT+BIND=<X>

Set binding Bluetooth address
“?” Query the current binding MAC address e.g. 0x0017ea9397e1 Set Bluetooth MAC address in need
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Datasheet ID: TEL0120 509168