[Solution de puce]：SX1268
[Fréquence porteuse]：410,125 ~ 493,125 MHz
[Puissance d'émission]：33dBm
[Distance de communication]：16km
[Introduction]：E22-400T33E est une nouvelle génération de module de spectre étalé sans fil LoRa conçu sur la base de la solution de puce SX1268. Il dispose de plusieurs méthodes de transmission, fonctionne dans la bande de fréquence 410.125-493.125 MHz (par défaut 433.125 MHz), technologie de spectre étalé LoRa, compatible avec 3.3 Ports IO V et 5V Tension, utilisant le package standard MINI PCI-e, avec des options d'interface de communication UART/RS485/RS232/USB, et une communication compatible avec les produits de la série E22-T, ce qui est pratique pour les utilisateurs à développer et à utiliser. Le module a une distance de transmission plus longue et une vitesse plus rapide ; il prend en charge le réveil par voie hertzienne, la configuration sans fil, la détection de porteuse, le relais automatique, la clé de communication et d'autres fonctions, prend en charge le réglage de la longueur des paquets et peut fournir des services de développement personnalisés.
| Pin No. | Item | Direction | Description |
| 1 | TO | output | Used to indicate the working status of the module; the user wakes up the external MCU , and outputs a low level during the initialization of the power-on self-test; (can be suspended) |
| 2 | VCC | enter | Power input 5.0V |
| 3 | M0 | Input ( very weak pull-up ) | Cooperate with M1 to determine the 4 working modes of the module (not floating, if not used, it can be grounded) |
| 4 | GND | power reference ground | |
| 5 | Ml | Input ( very weak pull-up ) | Cooperate with M0 to determine the 4 working modes of the module (not floating, if not used, it can be grounded) |
| 6 | NC | - | - |
| 7 | NC | - | - |
| 8 | NC | - | - |
| 9 | GND | - | power reference ground |
| 10 | SMD_DI0 | input /output | Program download data interface ( the module needs to be reset or erased before SWD programming ) |
| 11 | RXD | enter | TTL serial port input, connect external TXD output pin |
| 12 | swD_CLK | input /output | Program download clock interface ( the module needs to be reset or erased before SWD programming ) |
| 13 | TXD | output | TTL serial port output, connect external RXD input pin |
| 14 | NC | - | - |
| 15 | GND | - | power reference ground |
| 16 | NC | - | - |
| 17 | NC | - | - |
| 18 | GND | - | power reference ground |
| 19 | NC | - | |
| 20 | NC | - | power reference ground |
| 21 | GND | - | power reference ground |
| 22 | RESET | enter | Input a high level module to enter the hardware reset state, input a low level module to return to normal working state, this function is used for reset operation in emergency |
| 23 | NC | - | - |
| 24 | VCC | enter | Power input 5.0V |
| 25 | NC | - | - |
| 26 | GND | - | power reference ground |
| 27 | GND | - | power reference ground |
| 28 | NC | - | - |
| 29 | GND | - | power reference ground |
| 30 | NC | - | - |
| 31 | NC | - | - |
| 32 | NC | - | - |
| 33 | NC | - | - |
| 34 | GND | - | power reference ground |
| 35 | GND | - | power reference ground |
| 36 | USB_D- | input /output | D- of other external USB devices |
| 37 | GND | - | power reference ground |
| 38 | USB_D+ | input /output | D+ connected to other USB devices |
| 39 | VCC | enter | Power input 5.0V |
| 40 | GND | - | power reference ground |
| 41 | VCC | enter | Power input 5.0V |
| 42 | NC | - | - |
| 43 | GND | - | power reference ground |
| 44 | NC | - | - |
| 45 | RS232_RXD | enter | External TXD of other RS232 devices |
| 46 | NC | - | - |
| 47 | RS232_TXD | output | RXD connected to other RS232 devices |
| 48 | NC | - | - |
| 49 | RS485_A | input /output | A terminal connected to other RS485 devices |
| 50 | GND | - | power reference ground |
| 51 | RS485_B | input /output | Connect to the B terminal of other RS485 devices |
| 52 | VCC | enter | Power input 5.0V |