[IC]： SX1268
[Частота]： 410~493 МГц
[Сила]： 22 дБм
[Расстояние]： щкм
[Интерфейс]： SPI
[Масса]： 1,5±0,1 г
[Введение]： Серия E22 является первым беспроводным модулем в Китае, использующим RF-чип Semtech SX1262, SX1268. Этот чип обеспечивает различные методы модуляции, такие как LoRaTM и традиционный GFSK. Его специальный метод модуляции LoRaTM увеличивает расстояние связи.
| RF Parameter | Value | Remark |
|---|---|---|
| Working frequency | 410~493 MHz | - |
| Transmitting power | 22 dBm | Max. Power (160mW) |
| Receiving sensitivity | -147 dBm | - |
| Air data rate | 0.018k~300kbps | - |
| Test distance | 6500m | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m |
| Pin No. | Pin Item | Pin Direction | Pin Application |
|---|---|---|---|
| 1 | GND | - | Ground |
| 2 | GND | - | Ground |
| 3 | GND | - | Ground |
| 4 | GND | - | Ground |
| 5 | GND | - | Ground |
| 6 | RXEN | Input | RF switch RX control，connecting external MCU IO, valid in high level |
| 7 | TXEN | Input | RF switch TX control，connecting external MCU IO or DIO2, valid in high level |
| 8 | DIO2 | Input/Output | Configurable IO port（see more in SX126x datasheet） |
| 9 | VCC | - | Power supply, 1.8V~3.7V（external ceramic filter capacitoris recommended） |
| 10 | GND | - | Ground |
| 11 | GND | - | Ground |
| 12 | NRST | Input | Module reset pin, low reset |
| 13 | DIO1 | Input/Output | Configurable IO port（see more in SX126x datasheet） |
| 14 | BUSY | Output | State indicator（see more in SX126x datasheet） |
| 15 | NRST | Input | Chip reset initiation, valid in low level |
| 16 | MISO | Output | SPI master input slave output |
| 17 | MOSI | Input | SPI master output slave input |
| 18 | SCK | Input | SPI clock |
| 19 | NSS | Input | Chip select，for starting a SPI communication |
| 20 | GND | - | Ground |
| 21 | ANT | - | Stamp hole（50 ohm impedance） |
| 22 | GND | - | Ground |
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