Ebyte Semtech SX1281 UART 3Km Gamme 2.4GHz 12dBm SMD 17.5*28.7mm CE FCC LoRa Transmetteur Sans Fil RF Module
[IC]：SX1280
[La fréquence]：2.4~2.5GHz
[Du pouvoir]：12.5dBm
[Distance]：3.0km
[Interface]：UART
[Lester]：2.2±0.1g
[Poids du produit]：2.2±0.1g
[Introduction]：E28-2G4T12S est un module UART basé sur SEMTECH SX1281, il adopte une transmission transparente et fonctionne sur la bande 2,4 GHz. Il adopte les modulations LoRa, FLRC et GFSK. Il dispose d'un emballage SMD avec des interfaces d'antenne IPX et PCB, et sa sortie TTL est de 3,3 V.
Magasin officiel
| Pin No. | Pin Item | Pin Direction | Pin Application |
|---|---|---|---|
| 1 | GND | Ground | Ground |
| 2 | NC | - | Disconnected |
| 3 | M0 | Input | M2, M1 and M0 jointly decide the 8 operation modes.(cannot be floated, can be grounded if not used) |
| 4 | M1 | Input | M2, M1 and M0 jointly decide the 8 operation modes.(cannot be floated, can be grounded if not used) |
| 5 | M2 | Input | M2, M1 and M0 jointly decide the 8 operation modes.(cannot be floated, can be grounded if not used) |
| 6 | RXD | Input | TTL serial input, connected to external TXD output pin. Can be configured as open-drain or pull-up input, please refer to parameter configuration. |
| 7 | TXD | Output | TTL serial output, connected to external RXD input pin Can be configured open-drain or push-pull output, please refer to parameter configuration. |
| 8 | AUX | Output | Used to indicate the module operation status, when user wakes up the external MCU,it outputs low level during initialization after power on and self-check, can be configured as open-drain output or push-pull output, please refer to parameter configuration. (can be floated) |
| 9 | VCC | - | Module power source positive reference.Voltage range: 2.3 ~ 5.5V DC |
| 10~11 | GND | Ground | Ground |
| 12~19 | NC | - | Disconnected |
| 20 | GND | Ground | Ground |