Bl12-a3 Bluetooth !!better!! · Real

The Revolutionary BL12-A3 Bluetooth: Unlocking a New Era of Wireless Connectivity

is a compact Bluetooth v5.0 audio receiver module. It is designed for "budget-friendly" applications where reliable wireless audio is needed without the bulk of a standalone speaker. It is the standard identifier for audio systems from manufacturers like Artforma and various luxury shower brands found on Amazon. Key Specifications bl12-a3 bluetooth

Wiring for Arduino Uno:

54 68 61 6E 6B 20 79 6F 75

if (Serial.available()) Serial1.write(Serial.read()); // Forward from PC to BT

For PC (Windows 10/11):

  1. Ensure your PC has Bluetooth (or use a USB dongle).
  2. Go to Settings > Bluetooth & devices > Add device.
  3. Select BL12-A3 from the list.
  4. Complete pairing using the PIN.
  5. A new virtual COM port will appear (e.g., COM3). Use a serial terminal (PuTTY, Tera Term) to communicate.

| Feature | BL12-A3 Bluetooth | JBL Go 4 | Anker Soundcore 3 | | :--- | :--- | :--- | :--- | | Price | $15–$25 | $40–$50 | $50–$60 | | Bluetooth Version | 5.3 | 5.3 | 5.0 | | Battery Life | 8–12 hrs | 5–7 hrs | 15–18 hrs | | Water Resistance | IPX6 | IP67 (Dust+Water) | IPX7 (Submersible) | | Sound Quality | Good (warm) | Very Good (balanced) | Excellent (app EQ) | | Charge-Out Feature | Yes | No | No | The Revolutionary BL12-A3 Bluetooth: Unlocking a New Era

  • Sensitivity: Up to -80dBm (typical for this class).
  • Range: Approximately 10 meters (Class

    • Confirm Connection: Select the device. You will hear a confirmation tone from the speakers once the pairing is successful. Ensure your PC has Bluetooth (or use a USB dongle)