Bluetooth 4.0 Transceiver Module AT-09

Specifications

The AT-09 Bluetooth 4.0 Transceiver BLE Module has the following specifications:

• Input Voltage: 3.3V/5V
• Built-In Level Switch Function:
• If using a 5.0V MCU to communicate with the Bluetooth module, the 5.0V power port supplies power, and the RX TX logic level is 5V.
• If using a 3.3V MCU to communicate with the Bluetooth module, the 3.3V power port supplies power, and the RX TX logic level is 3.3V.
• RX: Bluetooth module serial receiving port connects with MCU TXD
• TX: Bluetooth module serial transmitting port connects with MCU RXD
• GND: Ground port for power negative
• 3.3V: Power port for 3.3V power
• 5V: Power port for 5V power

Package Included

The package includes 4 AT-09 Bluetooth 4.0 Transceiver BLE Modules.

Description

The AT-09 is a small-sized module containing a BLE chip (CC2541) that enables communication between your device and iPhone/iPAD or Android devices with IOS 6 or Android 4.3 and above.

This module allows for serial communication with the BLE chip through Rx and Tx pins. You can set the baud rate, name, and pairing password using the AT command when the Bluetooth connection is not established. Once set, the parameters are saved even after power-off, and the module switches to transparent transmission mode automatically.

Moreover, the AT-09 module is similar to the HM-10 module and is compatible with it. If you have experience with the HM-10, you will find it easy to get started with the AT-09 module.

product information: