E22-900T33S 900 MHz 2 W réseau de relais haute puissance Module sans fil LoRa nouvelle génération technologie de spectre étalé LoRa
[Puissance d'émission]：33 dBm
[Distance de communication]：16 km
[Taille du produit]：25*40.5mm
[Poids du produit]：5±0.1g
[Introduction]：E22-900T33S est une nouvelle génération de module sans fil LoRa. Il s'agit d'un module de port série sans fil (UART) basé sur la solution LoRa de SEMTECH. Il dispose de diverses méthodes de transmission et fonctionne dans la bande de fréquences 850,125-930,125 MHz. Technologie à spectre étalé LoRa, sortie de niveau TTL, compatible avec les tensions des ports IO 3,3 V et 5 V.
Magasin officiel
| pin number | pin name | Pin direction | Pin usage |
| 1 | GND | enter | Module ground |
| 2 | VCC | enter | Module power positive reference, voltage range: 3.3 ~ 5.5V DC |
| 3 | AUX | 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) |
| 4 | TXD | output | TTL serial port output, connected to external RXD input pin; |
| 5 | RXD | enter | TTL serial port input, connected to external TXD output pin; |
| 6 | M1 | 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) |
| 7 | 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) |
| 11 | ANT | output | Antenna interface (high-frequency signal output, 50 ohm characteristic impedance) |
| 12 | GND | - | Fixedly |
| 13 | GND | - | Fixedly |
| 14 | GND | - | Fixedly |
| 18 | NC | - | NC pin, this pin needs to be suspended (for subsequent expansion) |
| 19 | NC | - | NC pin, this pin needs to be suspended (for subsequent expansion) |
| 20 | NC | - | NC pin, this pin needs to be suspended (for subsequent expansion) |
| 21 | NC | - | empty feet |
| 22 | NC | - | empty feet |
| 23 | GND | enter | Module ground |
| 24 | NC | - | empty feet |