[Fréquence de travail]:410 ~ 493 MHz
[Puissance de transmission]: 33 dBm
[Distance de communication]:16 km
[Taille du produit]:38,5*24 mm
[Introduction]:Le module E220-400M33S est basé sur la nouvelle génération de puce RF LoRaTM LLCC68 produite par Semtech. Il est développé indépendamment avec une puissance maximale de 2 W et convient aux modules sans fil SMD LoRaTM 433/470 MHz. Il utilise un oscillateur à cristal 32 MHz de haute précision de qualité industrielle. Étant donné que le LLCC68 importé est utilisé comme cœur du module, un amplificateur de puissance (PA) et un amplificateur à faible bruit (LNA) sont intégrés sur la base d'origine, de sorte que la puissance de transmission maximale atteint 2 W et que la sensibilité de réception est encore améliorée. La stabilité globale de la communication est grandement améliorée par rapport aux produits sans amplificateurs de puissance et amplificateurs à faible bruit.
| Pin number | Pin name | Pin direction | Pin usage |
| 1 | GND | - | Ground wire, connected to the power reference ground |
| 2 | GND | - | Ground wire, connected to the power reference ground |
| 3 | GND | - | Ground wire, connected to the power reference ground |
| 4 | GND | - | Ground wire, connected to the power reference ground |
| 5 | GND | - | Ground wire, connected to the power reference ground |
| 6 | RXEN | input | The radio frequency switch receives the control pin, connects to the external microcontroller IO, and is active at high level. |
| 7 | TXEN | input | RF switch emission control pin, connected to external microcontroller IO or DIO2, active at high level |
| 8 | DIO2 | input/output | Configurable general-purpose IO port (see LLCC68 manual for details) |
| 9 | VCC | - | Power supply, range 3~5.5V (it is recommended to add external ceramic filter capacitors) |
| 10 | VCC | - | Power supply, range 3~5.5V (it is recommended to add external ceramic filter capacitors) |
| 11 | GND | - | Ground wire, connected to the power reference ground |
| 12 | GND | - | Ground wire, connected to the power reference ground |
| 13 | DIO1 | input/output | Configurable general-purpose IO port (see LLCC68 manual for details) |
| 14 | BUSY | output | Used for status indication (see LLCC68 manual for details) |
| 15 | NRST | input | Chip reset trigger input pin, active low level |
| 16 | MISO | output | SPI data output pin |
| 17 | SMOKE | input | SPI data input pin |
| 18 | SCK | input | SPI clock input pin |
| 19 | NSS | input | Module chip select pin, used to start an SPI communication |
| 20 | GND | - | Ground wire, connected to the power reference ground |
| 21 | ON | - | RF interface, stamp hole (50 ohm characteristic impedance) |
| 22 | GND | - | Ground wire, connected to the power reference ground |
| ★ For details about the module’s pin definition, software driver and communication protocol, please refer to SEMTECH’s official "LLCC68 Datasheet" ★ | |||