3PCS BLE 4.0 Bluetooth Module CC2540 CC2541 AT-09 Serial Wireless Module Compatible with HM-10

Product Introduction:

Introduction of Product: CC2540 CC2541 AT-09 Bluetooth 4.0 BLE Module: This Bluetooth module supports input voltages of 3.3V/5V, requiring only one power supply. It comes with a built-in level conversion function, making it compatible with different setups. If you are using a 5.0V MCU and Bluetooth module for communication, the 5.0V power supply port and TX RX logic level are set to 5V. Similarly, if you are using a 3.3V MCU, the power supply port and logic level are adjusted to 3.3V for seamless communication.

The RX pin is used to connect the Bluetooth module serial receiver to the MCU TXD, while the TX pin connects the Bluetooth module serial port transmitter to the MCU RXD. The GND pin serves as the ground terminal, the 3.3V pin provides power supply from a 3.3V source, and the 5V pin provides power supply from a 5V source.

Package includes: 3 pieces of CC2540 CC2541 AT-09 Bluetooth 4.0 BLE Module, compatible with HM-10. This module supports UART interface and SPP Bluetooth serial port protocol.

Additional features: - Input voltage: 3.3V/5V supply - RX pin connects Bluetooth module serial port receiver to MCU TXD - TX pin connects Bluetooth module serial port transmitter to MCU RXD - Supports AT command for flexible customization of baud rate, device name, pairing password, and other parameters as needed.

With its versatile compatibility and user-friendly features, the CC2540 CC2541 AT-09 Bluetooth 4.0 BLE Module is a reliable choice for your communication needs.

product information: