[Вес продукта]： 2,3 ± 0,1 г
[IC]： SX1278
[Частота]： 410~441MHz
[Сила]： 20dBm
[Расстояние]： 5km
[Размер]： 16 * 26mm
[Введение]： E32-433T20S — это модуль беспроводного последовательного порта (UART), основанный на решении SEMTECH LoRa. Он имеет различные режимы передачи, работает на частоте 410–441 МГц (по умолчанию 433 МГц), технология расширения спектра LoRa.
| Main parameter | Performance | Remark |
|---|---|---|
| Distance for reference | 5000m | Test condition：clear and open area, antenna gain: 5dBi， antenna height: 2.5m，air data rate: 2.4kbps |
| TX length | 58 Byte | Maximum capacity of single package |
| Buffer | 512 Byte | - |
| Modulation | LoRa™ | - |
| Communication interface | TTL | @3.3V |
| Package | SMD | - |
| Connector | 1.27mm | - |
| Size | 16*26mm | - |
| Antenna | IPEX/stamp hole | 50 ohm impedance |
| No. | Name | Direction | Features |
|---|---|---|---|
| 1 | NRST | import | Module reset pin |
| 2 | GND | - | Module ground wire |
| 3 | NC | - | Empty feet |
| 4 | NC | - | Empty feet |
| 5 | NC | - | Empty feet |
| 6 | NC | - | Empty feet |
| 7 | NC | - | Empty feet |
| 8 | GND | - | Module ground wire |
| 11 | GND | - | Module ground wire |
| 12 | ANT | output | Antenna interface (high-frequency signal output, 50 ohm characteristic impedance) |
| 13 | GND | - | Module ground wire |
| 14 | GND | - | Module ground wire |
| 15 | GND | - | Module ground wire |
| 16 | GND | - | Module ground wire |
| 19 | GND | - | Module ground wire |
| 20 | M0 | Input (very weak pull-up) | With M1, determine he four working modes of the module (not suspended, if not grounded) |
| 21 | M1 | Input (very weakpull-up) | With M0, determine the four working modes of the module (not suspended, if not grounded) |
| 22 | RXD | import | TTL serial port input, connected to the external TXD output pin; |
| 23 | TXD | output | TTL, serial port output, connected to the external RXD output pin; |
| 24 | AUX | output | Used to indicate the working state of the module; user awakens external MCU and output low level during self-test initialization (can be suspended) |
| 25 | VCC | - | Module power supply is positive reference, voltage range: 2.7~5.5V DC |
| 26 | GND | - | Module ground wire |
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