High Speed CC2541 10-bit Headphone/Earphone/Speaker Bluetooth Module

Features

Easy to use, no need of any experience of Bluetooth protocol stack application;

UART design for user interface, full-duplex bi-directional communication, and supporting the minimum baud rate of 4800 bps;

Supporting bridge mode (serial port transparent transmission), and direct-drive mode (no additional MCU needed)

Default connection interval of 20ms, which makes quick connection;Supporting module soft reset by AT command, and access to the MAC address;Supporting the adjustment of Bluetooth connection interval by AT command, and the control of different forwarding rates (dynamic power adjustment);Supporting the adjustment of the transmission power by AT command, the change of broadcasting interval, the customization of broadcasting data, the customization of equipment UDID, the setting of data delay (preparation time of user MCU serial port receiving), the change of the serial port baud rate, and the change of the module names (all settings can be saved after power-off);The length of the UART data packets can be any below or equal to the arbitrary length of 200 byte (large packet automatic distribution);High-speed transparent transmission rate maximum to 4 K/s and the stable rate to be 2.5 K/s to 2.8 K/s (IO5, IO6);Supporting the change of module name by APP, the change of UART baud rate and product UDID, the user-defining of broadcasting contents and cycles (all settings can be saved after power-off);Supporting the remote reset of module by APP, and the setting of transmission power;Supporting the adjustment of Bluetooth connection interval by APP but the setting cannot be saved after power-off (dynamic power adjustment);Supporting the connection status and the flexible configuration of broadcasting status prompt pin / general IO;

Supporting battery power information reading and prompt, able to auto upload (notification of remaining battery power)

6 two-way programmable IO port, input check triggered by external interrupt, and low power operation (applied in alarm triggering, lighting control, remote control toys, and various i/o switches);

2 programmable single timing / cycling timing flip-over output port (applied in smart timing schedule);

2-channel ADC inputs (14 bit), EN/BAN, free configuration of sampling cycle (applied in temperature/humidity metering, tometry, & etc.);

4-channel programmable PWM outputs (120 Hz) (applied in lighting dimming and speed control);

Module-end continuous RSSI acquisition, APP readable and auto-notifying, EN/BAN, setting of acquisition frequency at free-will (applied in finder, anti-loss and alarm);

Supporting battery power information reading and prompt, able to auto upload (notification of remaining battery power);

Supporting the password setting, modifying and restoring for anti-hijacking, preventing from malicious connection from a third party. Also the notification of independent crypto-operation result to simplify the APP programming;

Supporting factory setting restore by single pin to ground (5s' long press) and the APP remote recovery;

Supporting the customization of PWM output initialization status (low, full, PWM output status value before power-off);

Supporting the custom of PWM frequency (61.036 Hz < = f < = 8 kHz, default 120 Hz);

Real-time system status prompt in broadcasting contents, including battery charge, custom UDID, current output value of 4 PWMs or collection value of 2 ADCs , the current state of IO, and etc. (suitable for broadcast applications);

2 levels of pulse-width counting, 0 ~ 0 XFFFFFFFF ms (about 49.7 days);

Supporting internal RTC, which can be synchronized any time from APP end;

Supporting 6 IO and 4 PWM timing control (default setting OFF);

4-channel PWM to support gradient mode (suitable for dimming control);

Supporting the saving of IO port configuration and output status, and the customization of the default initialization status;

Supporting the light recovery and deep recovery modes, which can recover user data flexibly while reserve the essential configuration of the product;

Supporting string prompts of Bluetooth connection status from TX serial port (connection, normal disconnection and timeout disconnection) ;

Supporting low-level-enabled mode and pulse-width-enabled mode, and the remote shutdown;

Supporting auto shutdown after 30 seconds without connection in the pulse-enabled mode;

Supporting timeout (or disconnection) prompt by square wave alarm in the pulse-enabled mode;

Extremely low power in standby mode ( 0.3 µA from TI official data for CC2541 SoC)