[IC]:SX1268
[La fréquence]:410~493MHz
[La puissance]:22dBm
[La distance]:7km
[Interface]:SPI
[Le poids]:1.5±0.1g
[Introduction]:La série E22 est le premier module sans fil en Chine à adopter la puce RF SX1262, SX1268 de Semtech. Cette puce fournit une variété de méthodes de modulation, telles que LoRaTM et GFSK traditionnel. Sa méthode de modulation spéciale LoRaTM augmente la distance de communication.
| 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 |