[Solution de puce]:SX1278
[Puissance de transmission]:33 dBm
[Distance de communication]:16 km
[Taille du produit]: 24*38,5 mm
[Introduction]:Le module sans fil E32-400M33S est un module sans fil SMD LoRaTM 410~493 MHz avec une puissance de transmission maximale de 2 W, développé indépendamment sur la base du SX1278 produit par Semtech aux États-Unis. Le SX1278 importé étant 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 1 W tandis que la sensibilité de réception est encore améliorée et la stabilité globale de la communication est grandement améliorée par rapport aux produits sans amplificateurs de puissance et amplificateurs à faible bruit. Ce module est principalement destiné aux maisons intelligentes, à la lecture de compteurs sans fil, à la recherche scientifique et au traitement médical, ainsi qu'aux équipements de communication sans fil à moyenne et longue distance.
| serial number | pin | Pin direction | Remark |
| 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, active at high level |
| 8 | DIO2 | input/output | Configurable general-purpose IO port (see SX1276 manual for details) |
| 9 | VCC | - | Power supply, range 3.3~5.5V (it is recommended to add external ceramic filter capacitors) |
| 10 | VCC | - | Power supply, range 3.3~5.5V (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 | NC | - | hanging in the air |
| 14 | DIO3 | input/output | Configurable general-purpose IO port (see SX1276 manual for details) |
| 15 | DIO4 | input/output | Configurable general-purpose IO port (see SX1276 manual for details) |
| 16 | GOD5 | input/output | Configurable general-purpose IO port (see SX1276 manual for details) |
| 17 | GND | - | Ground wire, connected to the power reference ground |
| 18 | GND | - | Ground wire, connected to the power reference ground |
| 19 | DIO1 | input/output | Configurable general-purpose IO port (see SX1276 manual for details) |
| 20 | GOD0 | input/output | Configurable general-purpose IO port (see SX1276 manual for details) |
| 21 | NRST | input | Chip reset trigger input pin |
| 22 | MISO | output | SPI data output pin |
| 23 | SMOKE | input | SPI data input pin |
| 24 | SCLK | input | SPI clock input pin |
| 25 | NSS | input | Module chip select pin, used to start an SPI communication |
| 26 | GND | - | Ground wire, connected to the power reference ground |
| 27 | ON | - | Antenna interface, stamp hole (50Ω characteristic impedance) |
| 28 | GND | - | Ground wire, connected to the power reference ground |