One-to-one full-time full-duplex intercomThe audio frequency of the subwoofer is in the range of 20Hz to 120Hz, in order to produce shocking sound effects. The audio coding of this scheme is completel
One-to-one full-time full-duplex intercom
The audio frequency of the subwoofer is in the range of 20Hz to 120Hz, in order to produce shocking sound effects. The audio coding of this scheme is completely uncompressed, and has low cost, low power consumption and simple interface. The transmitting module of this solution can coexist with the Bluetooth module in a space without interfering with each other, and the Bluetooth operating distance is not affected.
| 规格项目 | 音频发射模块 | 音频接收模块 |
|---|---|---|
供电电压 | 5V | 5V |
消耗电流 | <25mA | <25mA |
工作温度 | -10 ℃ ～ +70 ℃ | -10 ℃ ～ +70 ℃ |
频率范围 | 2400～2483.5MHz | 2400～2483.5MHz |
信道数目 | 20 | 20 |
调制方式 | GFSK | GFSK |
发射功率 | 10dBM | |
输入阻抗 | 1OK Ohm | |
输入电平 | 2.8Vp-p(Max) | |
接收灵敏度 | -85dBm(Min.) | |
输出阻抗 | 32 Ohm | |
输出电平 | 2.8Vp-p(Max) | |
音频时延 | <10ms | <10ms |
频率响应 | 10～7.6KHz,±3dB | 10～7.6KHz,±3dB |
动态范围@1kHz | 81dB | 81dB |
失真度THD | 0.1% | 0.1% |
发射与接收第一次使用需要配对，配对只需一次，以后开机即可使用
连接成功，接收模块控制脚输出低电平，无连接时为高电平
发射模块上电LED慢闪
接收模块上电没连接LED灯快闪
接收模块上电连接LED灯慢闪
无线通信内置数据链路，本地串口通信用UART口
