AT-09 Bluetooth 4.0 UART Transceiver Module CC2541 Compatible with HM-10


1. Ultra-low standby power consumption 90uA~400uA
2. Range up to 60 meters
3. Built-in PCB antenna
4. Power input : 3.6v to 6v DC (6v MAX)

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The AT-09 is a module that contains a BLE chip (a CC2540/CC2541). This module allows performing serial communication with the BLE chip thanks to an Rx and a Tx pin. This module is also very similar to the HM-10 module and is also compatible with it. So if you have some experience with the latter, you will get started quickly with the AT-09.

This small size Bluetooth 4.0 TTL transceiver module allows your target device to communicate with your iPhone/iPad, IOS 6 or Android 4.3 above devices. You can set it as a slave or master and use AT command to set the baud rate.


1. Industrial remote control, remote sensing.
2. POS system, Bluetooth keyboard, mouse, game controllers.
3. Automobile testing equipment.
4. Portable, the battery power of medical equipment.
5. Automated data collection.
6. Bluetooth remote control toy.
7. The wireless LED display system.
8. Bluetooth printer.
9. Intelligent household, industrial control.

Additional information

Weight 10 g
Dimensions 7 × 5 × 3 cm


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