I am text block. Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
AT-09 Bluetooth 4.0 UART Transceiver Module
AT-09 Bluetooth 4.0 BLE UART transceiver module with low power consumption—ideal for Arduino, IoT, and wireless sensor projects.
The AT-09 Bluetooth 4.0 UART Transceiver Module is a compact Bluetooth Low Energy (BLE) communication module designed for low-power wireless data transmission. Based on the CC2541 chipset, it supports Bluetooth 4.0 BLE protocol, making it ideal for battery-powered and IoT applications.
The module communicates via a UART (TTL) serial interface, allowing easy integration with Arduino, ESP32, STM32, Raspberry Pi, and other microcontroller platforms. Its low energy consumption and small form factor make it suitable for wireless sensors, wearable devices, home automation, and BLE-based mobile applications.
The AT-09 supports configuration through AT commands, enabling flexible setup for connection parameters, baud rate, and device roles. It provides stable and reliable BLE communication for short-range wireless projects.

Related products
Arduino CNC Shield
- Shield type: Arduino Nano
- Firmware: GRBL
- Modular stepper motor drivers: 3
- Limit switches: 6
- Micro-stepping: 1/16
- Coolant enable
- Uses removable Pololu A4988 compatible stepper drivers. (A4988, DRV8825, and others) (Not Included)
- Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping )
- Compact design.
- Runs on 12-36V DC. (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
- Please note that this is an unassembled kit and needs soldering.
- Latest Arduino CNC Shield Version 3.51
Creality CR-5 Pro 3D PRINTER/300*325*380mm/multiple materials supported
HS-49 TOP220 Package Heat Sink
Mini Portable Virtual Laser Projection Keyboard and Mouse Wireless Bluetooth
- Compatible with Android, iOS, Windows and Mac all kinds of operation systems that can be used with any phone, tablet, PC and laptop for a smooth and fast way of text input.
- Built-in Bluetooth for connecting to other devices without complex wired troubles
- More stable and smarter
- Can change the mini USB port to micro USB port.
- With mini Bluetooth speakers, which support voice reporting and music playing
- 3 in 1 Function: Laser keyboard,Mouse and bluetooth speaker
- Good touch sensitivity
- The BEEP sound and brightness can be adjusted on the laser keyboard

Reviews
There are no reviews yet.