Bl12a3 Bluetooth Best Full

A comprehensive decoder board with a built-in 25W+25W dual-channel amplifier, FM radio, and remote control support. It is available at Quartz Components Stereo Bluetooth Speaker Circuit Module Kit

Once paired, you can control playback and volume directly from your mobile device or via the integrated touch icons on the mirror. Primary Applications bl12a3 bluetooth full

| Parameter | Value | |-----------|-------| | | 2.0 + EDR or 2.1 + EDR (backward compatible with 1.2) | | Frequency Band | 2.4 GHz ISM (2402–2480 MHz) | | Modulation | GFSK (Gaussian Frequency Shift Keying) | | RF Power (Class 2) | -6 dBm to +4 dBm (typical 0 dBm) | | Receive Sensitivity | -80 dBm to -85 dBm (depending on vendor) | | Data Rate (UART) | 9600 bps to 1.3824 Mbps (default 9600, 8N1) | | Air Data Rate | Up to 2.1 Mbps (EDR) | | Operating Voltage | 3.0V – 3.6V (absolute max 3.9V, not 5V tolerant) | | Current Consumption | Tx: ~30 mA, Rx: ~25 mA, Standby: < 1 mA (Deep sleep: < 10 µA for BLE variant) | | Interface | UART (TX, RX, RTS, CTS optional), GPIO, State LED | | Antenna | On-board PCB trace antenna (gain ~1 dBi) | | Range (LOS) | 10 meters (typical indoor), up to 20 meters (open field) | | Form Factor | 27 mm x 13 mm x 2.5 mm (typical) | | Pin Pitch | 2.54 mm (compatible with breadboards and 0.1" headers) | A comprehensive decoder board with a built-in 25W+25W

Here is a repair guide for the five most common failures: Rx: ~25 mA