| Parameter | Value | | :--- | :--- | | | 3.0 + EDR (Enhanced Data Rate) – backwards compatible with 2.1 | | Frequency Band | 2.4 GHz ISM (79 channels) | | Output Power Class | Class 2 (up to 4 dBm) – range approx. 10-15 meters line-of-sight | | Sensitivity | -82 dBm (typical) | | Core Chipset | Broadcom BCM2042 or BCM20730 (variant dependent) | | Interface | UART (TTL levels, 3.3V), PCM for audio, and GPIO | | Profiles Supported | HSP, HFP 1.5, A2DP 1.2, AVRCP 1.4, SPP | | Operating Voltage | 3.0V – 3.6V (absolute max 3.9V – risk of damage) | | Current Consumption | Active TX: 45-55 mA, Sleep: <1 mA | | Antenna Type | On-board PCB trace antenna or u.FL connector | | Form Factor | 16mm x 20mm x 2.3mm (typical) |
: Frequently used in IP44-rated environments, such as Bathroom Zone 2, where protection against water splashes is required. How to Pair and Use the Setting up the bl12a3 bluetooth full
Ensure your smartphone’s Bluetooth is active. Search for the pairing name, which typically appears as "BL12-A3" or "Mirror-BT" . | Parameter | Value | | :--- | :--- | | | 3
The BL12A3 is more than just a Bluetooth receiver; it acts as a central media controller: Multiple Input Modes : Beyond Bluetooth, it supports TF (MicroSD) cards USB flash drives auxiliary inputs. Integrated FM Radio Search for the pairing name, which typically appears