Features:

Simple to use, no need for experience with the Bluetooth protocol.

General serial user interface, full duplex two-way communication.

Supports bridging mode (transparent serial transmission) or direct drive mode (no additional CPU).

Default connection interval of 20ms for fast connection.

Supports AT commands to modify baud rate, reboot via software, access MAC address, change unit name.

Supports AT commands to set the Bluetooth connection interval and control the forwarding rate (Dynamic Power Adjustment).

Serial data packet length up to 200 bytes.

Transparent transmission speed up to 4K/s, stable performance at 2.5K-2.8K.

Support mobile device application (APP) to change the name of the Bluetooth module and save after power off.

Support mobile device application (APP) to change baud rate and save after power off.

Mobile device application (APP) support for remote reboot of the unit.

Support mobile device application (APP) to set Bluetooth connection interval (without storage).

Quick test capability without connecting an external device to check wireless and serial communication.

Debug port and full external IO expansion.

Support connection status, broadcast status notification via pin / Flexible configuration of general IO.

6 programmable bidirectional IOs, with external interrupt detection capability for low-power operation (e.g. alarm, lighting control, remote control of games).

2 programmable timers / period reversal outputs (e.g. smart scheduling of time actions).

2 ADC inputs (14 bits) with on/off capability and free sampling period adjustment (e.g. humidity, temperature, brightness detection).

4 programmable PWM outputs (120Hz) for applications such as brightness control and energy management.

Continuous RSSI data collection, automatic notification capability in the application, with free collection frequency setting (e.g. object detection, loss alarm).

Unit power indication and ability to read supply voltage with automatic notification (e.g. low battery alarm).

Support password setting to prevent unauthorized connections.

Low-power standby mode, with a recorded sleep consumption of 0.4μA (according to Texas Instruments' official data for the CC2540).

📌 Note: Power consumption measurements were made at 3.07V and under controlled test conditions.