E28-2G4M27S Module sans fil Radio émetteur-récepteur Lora 2.4G Sx1281 Version améliorée Modules récepteurs émetteur Lora
[IC]：SX1281
[La fréquence]：2.4~2.5GHz
[La puissance]：27dBm
[La distance]：8.0km
[Interface]：SPI
[Le poids]：1.7±0.1g
[Introduction]：E28-2G4M27S est un petit module SMD 2,4 GHz (espacement des broches 1,27 mm) conçu par Chengdu Ebyte. Avec antenne PCB intégrée, interface SPI, il possède une puissance TX de 500 mW avec une consommation électrique.
Magasin officiel
| Pin No. | Pin Item | Pin Direction | Pin Application |
|---|---|---|---|
| 1 | VCC | - | Power supply, 2.5V ~3.6V (recommend to add external ceramic filter capacitor) |
| 2 | GND | - | Ground, connecting to power source reference ground |
| 3 | MISO_TX | Output | SPI data output pin,can be used as UART transmitting pin |
| 4 | MOSI_RX | Input | SPI data input pin, can be used as UART receiving pin |
| 5 | SCK_RTSN | Input | SPI clock input pin, can be used as UART request transmitting pin |
| 6 | NSS_CTS | Input | Module chip selection pin, used to start a SPI communication; and can be used as UART clearing transmitting pin(refer to SX1281 Datasheet for details) |
| 7 | GND | - | Ground, connecting to power source reference ground |
| 8 | RX_EN | Input | LNA control pin，valid in high level |
| 9 | TX_EN | Input | PA control pin，valid in high level |
| 10 | GND | - | Ground, connecting to power source reference ground |
| 11 | NRESET | Input | Chip reset initiation input pin, valid under low level, built-in 50k pull-up resistor |
| 12 | BUSY | Output | For status indication(refer to SX1281 Datasheet for details) |
| 13 | DIO1 | Input/Output | GPIO(refer to SX1281 Datasheet for details) |
| 14 | DIO2 | Input/Output | GPIO(refer to SX1281 Datasheet for details) |
| 15 | DIO3 | Input/Output | GPIO(refer to SX1281 Datasheet for details) |
| 16 | GND | - | Ground, connecting to power source reference ground |