TDK blu2i manual Factory Default Mode, Software

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8.2 Factory Default Mode

The module is capable of operating at a very wide range of baud rates and S Registers 520 and 521 allow the baud rate to be set very easily. The baud rate clock generator in the module is more versatile that that available in a standard 16550 UART commonly available in PCs.

In fact, as long as the equation BAUDRATE * 0.004096 produces an integer value, then there will be 0% error in clocking for that baud rate.

So it is possible to set a baud rate that a PC cannot cope with, and in that circumstance it is virtually impossible to communicate with it.

To cater for this circumstance, the blu2i module will come out of reset using 9600,N,8,1 comms settings for exactly 750 milliseconds and then revert to the comms parameters as per the S Registers.

If the host sends the string !<BISM>!<cr> where <cr> is the carriage return character within that 750ms period, then the module will remain at 9600,N,8,1 and will also configure itself using factory default S Register values.

Please see the next section for a discussion on Terminal Emulators and how you can obtain a terminal emulator which has this ‘reset’ feature built in.

8.3 Software

The Bluetooth Module described in this document uses the serial interface to accept commands and provide responses. While in command mode all interaction between it and a host is done purely in text mode. This means that virtually all terminal emulators available are adequate for testing and prototyping. HyperTerminal, Procomm or the TDK Terminal application supplied are all suitable terminal emulators.

TDK Terminal is a terminal emulation application capable of running on Windows 98, Me, 2000 and XP operating systems. It was developed specifically to aid development and testing of the blu2i Module. It allows connection to serial devices using any combination of the following communications parameters:

COM Port: 1 to 255

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Contents Blu2i Module User Guide Contents RF Approvals Safety GuidelinesBefore You Begin Feature Implementation FunctionsApplication Interface Serial InterfacePower Supply Details the power consumption in different modesBlu2i Module PCM Codec Interface SPI BusParallel PIO Port Electrical specification of the interface Pin Signal DescriptionPage Electric Characteristics Function Signal Name Pin No Signal level CommentsUSB D Physical Characteristics Mechanical DimensionsPart number Stacking height HRS number Board to Board ConnectorMounting the blu2i Module onto the application platform Parameter Specification 40 pin Board to Board connector Electrical and radio characteristics Operating temperaturesPower Consumption Absolute Maximum ratingsATD Baud rate 9600 38400 115200 460800 Low Power Modes using Sniff High Power Consumption RF performance 5.5.1Transmit Power 2Receive Sensitivity4Performance against Temperature Reliability Parameter Minimum MaximumDirection Function RS232 Modem SignalsDirection Connector Pin Label Function Modem signalling over Bluetooth Break signal on RX lineReset Pure Cable Replacement Mode Data CableATS512=1 Audio CableATS512=3 ATS0=-1 Modem Control and Status Signals ATS504=1 ATS530=2000 ATS532=1ATDbdaddr Getting StartedATS0=1 AT+BTP Factory Default Mode SoftwareBaud rate 300 to Parity FCC and Industry Canada Statements Appendix aEurope EU Declaration of Conformity Additional Statement Appendix BESD Electrostatic Discharge 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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