E220-900M22S long distance transmission LLCC68 LoRa module New generation LoRa modulation technology
[IC]：LLCC68
[Frequency]：850~930MHz
[Power]：
[Distance]：7km
[Interface]： SPI
[Weight]：1.5±0.1g
[Introduction]：E220-900m22s is an small module, self-developed based on the new generation of LoRa TM RF chip llcc68, produced by Semtech company. It is suitable for 868mhz and 915MHz LoRa TM wireless module and uses industrial 32mhz crystal oscillator
| Pin No. | Item | Direction | Description |
|---|---|---|---|
| 1 | GND | - | Ground, connect to power reference ground |
| 2 | GND | - | Ground, connect to power reference ground |
| 3 | GND | - | Ground, connect to power reference ground |
| 4 | GND | - | Ground, connect to power reference ground |
| 5 | DIO3 | - | Configurable universal IO port (see llcc68 manual for details) |
| 6 | RXEN | input | RF switch receive control pin, connect external MCU IO, high level effective |
| 7 | TXEN | input | RF switch emission control pin, connected to external MCU IO or dio2, high level effective |
| 8 | DIO2 | Input / output | Configurable universal IO port (see llcc68 manual for details) |
| 9 | VCC | - | Power supply, range 1.8V ~ 3.7V (it is recommended to add ceramic filter capacitor externally) |
| 10 | GND | - | Ground, connect to power reference ground |
| 11 | GND | - | Ground, connect to power reference ground |
| 12 | GND | - | Ground, connect to power reference ground |
| 13 | DIO1 | Input / output | Configurable universal IO port (see llcc68 manual for details) |
| 14 | BUSY | output | For status indication (see llcc68 manual for details) |
| 15 | NRST | input | Chip reset trigger input pin, low level effective |
| 16 | MISO | output | SPI data output pin |
| 17 | MOSI | input | SPI data input pin |
| 18 | SCK | input | SPI clock input pin |
| 19 | NSS | input | The module chip selection pin is used to start a SPI communication |
| 20 | GND | - | Ground, connect to power reference ground |
| 21 | ANT | - | RF interface, stamp hole |
| 22 | GND | - | Ground, connect to power reference ground |