[Interfaz de comunicación]：puerto serie UART
[Frecuencia de trabajo]：2405 ~ 2478MHz
[Potencia de transmisión]：12 dBm ~ 20 dBm
[Distancia de comunicación]：300 m
[Tamaño del producto]：16*26mm
[Peso del producto]]：2,2 ± 0,1 g.
[Introducción]：El módulo de audio inalámbrico E200-2G4A20S es un nuevo módulo de transmisión de audio inalámbrico lanzado por Chengdu Ebyte, que integra transceptor y transceptor. Tiene las características de tamaño pequeño y uso conveniente. Funciona en la banda de frecuencia 2.4G. Utiliza E/S de hardware para seleccionar el canal de forma predeterminada. También se puede configurar para la selección de canales de software mediante instrucciones. Admite entrada de micrófono y salida de altavoz, y es compatible con un voltaje de fuente de alimentación de 3,3 V.
| Pin number | Pin name | Pin direction | Pin usage |
| 2 | ANT | - | Antenna interface |
| 6 | REST | Input | Module reset pin, active low level; |
| 11 | TXD | output | TTL serial port output; |
| 12 | RXD | Input | TTL serial port input; |
| 16 | TTCLK | - | Debug clock pin, do not use floating processing; |
| 17 | TTDIO | - | Debug data pins, do not use floating processing; |
| 20 | VCC | power supply | Module power supply positive reference, voltage range: 2.2~3.6V DC, 3.3V recommended; |
| 22 | WAKE_UP | Input | Wake-up pin, used for AT command configuration parameters, low-level wake-up; |
| 23 | MODE | Input | The transceiver mode control pin of the module, low-level transmit mode, high-level receive mode, cannot be left floating; |
| 25 | Debug_en | - | The debugging control pin is a low-level module that enters the program burning mode and does not use floating processing; |
| 26 | CH3 | Input | Channel selection 3, combined with CH0, CH1, CH2, selects 16 working channels, see the channel table for details; |
| 27 | CH2 | Input | Channel selection 2, combined with CH0, CH1, CH3, selects 16 working channels, see the channel table for details; |
| 28 | CH1 | Input | Channel selection 1, combined with CH0, CH2, CH3, selects 16 working channels, see the channel table for details; |
| 29 | CH0 | Input | Channel selection 0, combined with CH1, CH2, CH3, selects 16 workable channels, see the channel table for details; |
| 30 | VOIN | Input | Audio input is negative, please refer to the recommended circuit for hardware design details; |
| 31 | VOIP | Input | The audio input is positive, please refer to the recommended circuit for hardware design details; |
| 32 | VOON | output | The audio output is negative, please refer to the recommended circuit for hardware design details; |
| 33 | VOOP | output | The audio output is positive, please refer to the recommended circuit for hardware design details; |
| 1、3、15、19、34、35、36 | GND | power supply | Module ground wire |
| 4、5、7、8、9、10、13、14、18、21、24 | NC | - | Keep it unused and leave it floating; |