Bl12-a3 Bluetooth !!exclusive!! <DELUXE>

Due to its simplicity, the BL12-A3 is a "jack-of-all-trades" in the wireless world:

| Pin | Name | Direction | Function | |-----|------|-----------|----------| | 1 | VCC | Input | 3.3V DC power input | | 2 | GND | Power | Ground reference | | 3 | TXD | Output | Transmits serial data from module to host (e.g., to Arduino RX) | | 4 | RXD | Input | Receives serial data from host to module (e.g., from Arduino TX) | | 5 | RTS | Input | Request to Send (hardware flow control) – often left unconnected | | 6 | CTS | Output | Clear to Send – often left unconnected | bl12-a3 bluetooth

The BL12-A3 is a Bluetooth 5.0 module designed for wireless communication between devices. It is based on the Nordic Semiconductor nRF52832 microcontroller, which provides a robust and efficient platform for Bluetooth Low Energy (BLE) applications. The module operates in the 2.4 GHz frequency range and supports a wide range of Bluetooth profiles, including SPP (Serial Port Profile), HID (Human Interface Device), and BLE (Bluetooth Low Energy). Due to its simplicity, the BL12-A3 is a

The BL12-A3 is a mono, over-the-ear Bluetooth headset designed primarily for voice communication. Unlike stereo headphones meant for music immersion, the BL12-A3 focuses on crystal-clear call quality, long-wearing comfort, and ease of use. It is frequently compared to industry staples like the Plantronics (now Poly) Voyager series but offered at a fraction of the price. The BL12-A3 is a mono, over-the-ear Bluetooth headset

To enable multipoint, pair the headset with Device A, turn off the headset, then pair with Device B. Turn the headset off and on again—it will automatically connect to both.