The AT-09 is a compact Bluetooth 4.0 UART transceiver module based on the CC2541 chip, offering low-power wireless communication for IoT projects. Compatible with HM-10, it enables seamless serial communication between your devices and smartphones.

Chip: CC2541 Bluetooth 4.0 BLE Interface: UART Protocol: Bluetooth SPP (Serial Port Profile) Power Input: 3.6V - 6V DC (6V MAX) Standby Current: 90μA - 400μA Communication Range: Up to 60 meters Antenna: Built-in PCB antenna Operating Mode: Master/Slave Compatibility: HM-10 compatible AT Commands: Supported Mobile OS Support: iOS 6+ and Android 4.3+ Dimensions: Compact SMD module

