E104-BT30 Audio ble Module CSRA64215 ble V4.2 EDR PCB CSR 9dBm 4M Flash SMD Receiver
[IC]：CSRA64215
[Frequency]：2402~2480MHz
[Protocol]：V4.2+EDR
[Distance]：50m
[Size]：25*16mm
[Weight]：0.8±0.1g
[Introduction]：E104-BT30 is a multifunctional and cost-effective module developed by our company for audio ble transmission. The main control uses the CSRA64215 chip of CSR to provide the module with high-quality sound and compatibility. The ble module uses a driver-free method.
| No. | Item | Pin direction | Application |
|---|---|---|---|
| 1 | GND | P | Ground, connect to power reference ground |
| 2 | AIO0 | I/O | Analog programmable I/O pin 0 (reserved function) |
| 3 | PIO4 | I/O | SPI-CS debug load pin |
| 4 | PIO16 | I/O | Module audio output indication pin, high level is effective |
| 5 | PIO3 | I/O | SPI-MISO debug load pin |
| 6 | SPI-PCM | I | SPI / PCM input selection, 0 = PCM / PIO interface, 1 = SPI |
| 7 | PIO2 | I/O | SPI-MOSI debug load pin |
| 8 | PIO17 | I/O | AUX input trigger pin (reserved function) |
| 9 | PIO5 | I/O | SPI-CLK debug load pin |
| 10 | RST | I | Module reset pin, pull down for 5ms to trigger reset |
| 11 | LED1 | O | Bluetooth status indication LED1 driver output |
| 12 | LED0 | O | Bluetooth status indication LED0 driver output |
| 13 | LED2 | O | Bluetooth status indication LED2 driver output |
| 14 | 1V35-SMPS | P | Module 1.35V power output, external decoupling capacitor is recommended, see Recommended circuit for details |
| 15 | VREGENABLE | I | Bluetooth module power-on / power-off control pin, high level is effective. Note that the module needs to be initialized before powering on. |
| 16 | VCHG | P | Internal charger input, usually connected to VBUS, see Typical application circuit for details |
| 17 | CHG_EXT | P | External battery charger control (reserved function) |
| 18 | VBAT_SE | P | Battery charge sensing input (reserved function) |
| 19 | VBAT-IN | P | Battery power input pin, cannot exceed 3.6V, otherwise the module will be damaged |
| 20 | GND | P | Ground, connect to power reference ground |
| 21 | USB-DN | I/O | USB cable negative (reserved function) |
| 22 | USB-DP | I/O | USB cable positive (reserved function) |
| 23 | PIO18 | I/O | General-purpose I / O (reserved function) |
| 24 | PIO21 | I/O | General-purpose I / O (reserved function) |
| 25 | PIO6 | I/O | General-purpose I / O (reserved function) |
| 26 | PIO1 | I/O | Next song Key input, high level is effective |
| 27 | PIO8 | I/O | Previous song Key input, high level is effective |
| 28 | VDD-PADS-1 | P | Input and output port power supply 1, usually 1.8V power supply connection |
| 29 | 1V8-SMPS | P | Module 1.8V power output, external decoupling capacitor is recommended, see 4.2 Recommended circuit for details |
| 30 | VDD-PADS-2 | P | Input and output port power 2, usually 1.8V power connection |
| 31 | PIO7 | I/O | Volume + Key input, high level effective, long press to continuously increase; |
| 32 | PIO9 | I/O | Play / Pause Key input, high level effective |
| 33 | PIO0 | I/O | Volume - Key input, high level effective, long press to continuously decrease; |
| 34 | MIC-AN | I | Channel A line or microphone input negative |
| 35 | MIC-AP | I | Channel A line or microphone input positive |
| 36 | MIC-BIAS | I | Microphone bias |
| 37 | LINE-BN | I | Channel B line input negative |
| 38 | LINE-BP | I | Channel B line input positive |
| 39 | SPK-RN | O | Right channel speaker output negative |
| 40 | SPK-RP | O | Right channel speaker output positive |
| 41 | SPK-LN | O | Left channel speaker output negative |
| 42 | SPK-LP | O | Left channel speaker output positive |
| 43 | GND | P | Ground, connect to power reference ground |