TDK blu2i manual Pure Cable Replacement Mode, Data Cable

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7Pure Cable Replacement Mode

7.1 Data Cable

The module has the capability of being preset into a pure 5-wire data cable replacement mode. The 5 wires being RX, TX, CTS, RTS and GND. This mode requires no changes to a host application since the Bluetooth connection is automatically set up on power up and will retry when the connection drops.

By implication, two devices are needed to replace a cable. One device is pre-configured to always be a master and the other, a slave.

Assuming the Bluetooth address of the master to be <bdaddr_m> and that of the slave to be <bdaddr_s>, the master module is configured by sending it the following AT commands.

AT&F

ATS512=1

ATS504=1

ATS507=2

ATS530=2000

AT&W

AT+BTR<bdaddr_s>

Where the ATS507=2 setting puts the device in DSR drop mode only. This means that when the device needs to be reconfigured, deasserting the DSR line will ensure that the module responds quickly to AT commands. This further means that in stand alone mode, the DSR input line MUST be asserted e.g. 0v in TTL signal mode.

The slave is configured by,

AT&F

ATS512=4

ATS0=-1

AT&W

AT+BTR<bdaddr_m>

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Contents Blu2i Module User Guide Contents Safety Guidelines Before You BeginRF Approvals Functions Feature ImplementationSerial Interface Application InterfaceDetails the power consumption in different modes Power SupplyBlu2i Module SPI Bus Parallel PIO PortPCM Codec Interface Pin Signal Description Electrical specification of the interfacePage Function Signal Name Pin No Signal level Comments Electric CharacteristicsUSB D Mechanical Dimensions Physical CharacteristicsBoard to Board Connector Mounting the blu2i Module onto the application platformPart number Stacking height HRS number Parameter Specification 40 pin Board to Board connector Absolute Maximum ratings Electrical and radio characteristicsOperating temperatures Power ConsumptionATD Baud rate 9600 38400 115200 460800 Low Power Modes using Sniff High Power Consumption 2Receive Sensitivity RF performance 5.5.1Transmit Power4Performance against Temperature Parameter Minimum Maximum ReliabilityRS232 Modem Signals Direction Connector Pin Label FunctionDirection Function Break signal on RX line Modem signalling over BluetoothReset Data Cable Pure Cable Replacement ModeAudio Cable ATS512=3 ATS0=-1ATS512=1 ATS504=1 ATS530=2000 ATS532=1 Modem Control and Status SignalsGetting Started ATS0=1ATDbdaddr AT+BTP Software Factory Default ModeBaud rate 300 to Parity Appendix a Europe EU Declaration of ConformityFCC and Industry Canada Statements Appendix B ESD Electrostatic DischargeAdditional Statement Warranty

blu2i specifications

The TDK Blu2i is an innovative Bluetooth audio device designed to elevate the listening experience for audiophiles and casual listeners alike. This versatile device combines advanced Bluetooth technology with high-quality audio performance to create an outstanding solution for wireless sound.

One of the standout features of the TDK Blu2i is its compatibility with various Bluetooth profiles, allowing it to seamlessly connect with a wide range of devices, including smartphones, tablets, and laptops. Utilizing the latest Bluetooth 5.0 technology, the Blu2i ensures a stable connection, reduced latency, and an extended range, making it ideal for both indoor and outdoor use.

In terms of audio performance, the TDK Blu2i boasts impressive sound quality. The device supports high-resolution audio streaming, delivering superior clarity and detail. Users can enjoy their favorite tracks with deep bass, crisp highs, and an overall balanced sound profile. The built-in digital signal processing (DSP) enhances audio playback, ensuring that every note is rendered with precision.

Another notable characteristic is the TDK Blu2i's long-lasting battery life. With up to 20 hours of playback on a single charge, users can indulge in extended listening sessions without worrying about frequent recharging. The device also features quick charge capability, allowing users to enjoy several hours of playback with just a short charging session.

The design of the TDK Blu2i is both stylish and functional. Its compact and lightweight form factor makes it easy to carry, while its durable construction ensures it can withstand everyday use. The device is equipped with intuitive controls, allowing users to adjust volume, skip tracks, and manage calls effortlessly.

Additionally, the TDK Blu2i supports voice assistant integration, enabling users to access their smart devices hands-free. This feature adds an extra layer of convenience, allowing for seamless multitasking without the need to reach for a phone.

In summary, the TDK Blu2i is a powerful Bluetooth audio device that encapsulates the essence of modern audio technology. With its high-quality sound, extensive battery life, and user-friendly features, it caters to the needs of any audio enthusiast looking for a reliable and high-performing wireless solution.
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