E28-2G4M27SX SX1281 Module émetteur-récepteur RF 2,4 GHz, consommation de courant extrêmement faible en mode basse consommation
[Poids du produit]：1.5±0.1g
[Ébrécher]：SX1281
[La puissance]：27dBm
[Distance de communication]：8km
[La puissance]：15*20mm
[Introduction]：E28-2G4M27SX est un module émetteur-récepteur SX1281 RF 2,4 GHz conçu et produit par Ebyte Company, avec une puissance d'émission de 500 mW, une interface SPI et une consommation de courant extrêmement faible en mode basse consommation ; le module est un type SMD à petit volume (espacement des broches 1,27 mm), utilisant un oscillateur à cristal de dérive basse température haute précision de qualité industrielle 52 MHz pour garantir ses caractéristiques industrielles et ses performances stables.
| Serial Number | Pin | Pin direction | Remark |
| 1 | VCC | - | Power supply, range 2.5~3.6V (it is recommended to add external ceramic filter capacitors) |
| 2 | GND | - | Ground wire, connected to the power reference ground |
| 3 | MISO_TX | output | SPI data output pin; can also be used as UART transmit pin (see SX1281 manual for details) |
| 4 | MOSI_RX | enter | SPI data input pin; can also be used as UART receiving pin (see SX1281 manual for details) |
| 5 | SCK_RTSN | enter | SPI clock input pin; can also be used for UART request transmission pin (see SX1281 manual for details) |
| 6 | NSS_CTS | enter | The module chip select pin is used to start an SPI communication; it can also be used to clear the UART transmit pin (see the SX1281 manual for details) |
| 7 | GND | - | Ground wire, connected to the power reference ground |
| 8 | RX_EN | enter | LNA control pin, active high level |
| 9 | TX_EN | enter | PA control pin, active high level |
| 10 | GND | - | Ground wire, connected to the power reference ground |
| 11 | NRESET | enter | Chip reset trigger input pin, active low level, built-in pull-up resistor 50k |
| 12 | BUSY | output | Used for status indication (see SX1281 manual for details) |
| 13 | DIO1 | input/output | Configurable general-purpose IO port (see SX1281 manual for details) |
| 14 | DIO2 | input/output | Configurable general-purpose IO port (see SX1281 manual for details) |
| 15 | DIO3 | input/output | Configurable general-purpose IO port (see SX1281 manual for details) |
| 16 | GND | - | Ground wire, connected to the power reference ground |