E200-470A17S SMD wireless serial port module
[Frequency]：470~512MHz
[Power]：17dBm
[Distance]：300m
[Size]：16*26mm
[Weight]：2.1±0.1g
[Feature]： new wireless audio transmission module
[Introduction]：E200-470A17S is a new wireless audio transmission module, which integrates transceiver. It has the characteristics of small size and convenient use. It works in the frequency band (470.033 ～ 512.273MHz) (default 512.273MHz), uses hardware I/O to select channels, supports MIC input and speaker output, and is compatible with 3.3V and 5V power supply voltages.
| Pin No. | Item | Direction | Description |
|---|---|---|---|
| 2 | ANT | - | antenna |
| 6 | REST | enter | Module reset pin, active low |
| 11 | TXD | output | TTL serial port output, currently only supports reading the module version, and does not use floating processing; |
| 12 | RXD | enter | TTL serial port input, currently only supports reading the module version, and does not use floating processing; |
| 16 | TTCLK | - | Debug clock pin, do not use floating processing; |
| 17 | TTDIO | - | Debug data pins, do not use floating processing; |
| 20 | TTDIO | power supply | Positive reference of module power supply, voltage range: 2.3~5.5V DC, 3.3V or 5V is recommended; |
| twenty three | Mode | enter | The transceiver mode control pin of the module, low-level transmit mode, high-level receive mode, cannot be left floating; |
| 25 | Debug_EN | - | Debug control pin, enter program programming mode for low-level module, do not use floating processing; |
| 26 | CH3 | enter | Channel selection 3, combined with CH0, CH1, CH2 to select 16 working channels, see the channel table for details; |
| 27 | CH2 | enter | Channel selection 2, combined with CH0, CH1, CH3 to select 16 working channels, see the channel table for details; |
| 28 | CH1 | enter | Channel selection 1, combined with CH0, CH2, CH3 to select 16 working channels, see the channel table for details; |
| 29 | CH0 | enter | Channel selection 0, combined with CH1, CH2, CH3 to select 16 working channels, see the channel table for details; |
| 30 | VOIN | enter | Audio input is negative, please refer to the recommended circuit for hardware design; |
| 31 | VOIP | enter | The audio input is positive, please refer to the recommended circuit for hardware design; |
| 32 | VOON | output | Audio output is negative, please refer to the recommended circuit for hardware design; |
| 33 | VOOP | output | The audio output is positive, please refer to the recommended circuit for hardware design; |
| 1, 3, 15, 19,34, 35, 36 | GND | power supply | Module ground |
| 4, 5, 7, 8,9, 10, 13,14, 18, 21,22, 24 | NC | - | Retain unused, suspend it for processing; |