E22-230T33S 230 MHz haute puissance LoRa propagation relais réseau sans fil module de port série
[Puissance d'émission]：33 dBm
[Distance de communication]： 12 km
[Taille du produit]： 25*40.5mm
[Introduction]：E22-230TXXS est un module de port série sans fil (UART) basé sur la solution LoRa de SEMTECH. Il dispose de plusieurs modes de transmission, fonctionnant à 220,125 MHz ~ 236,125 MHz (230,125 MHz par défaut), technologie à spectre étalé LoRa, sortie de niveau TTL, compatible avec les tensions des ports IO 3,3 V et 5 V.
| No. | Name | Direction | Function |
| 1 | GND | - | Module ground |
| 2 | VCC | - | Module power supply positive reference, Power supply： 3.3〜5.5V DC |
| 3 | AUX | Output | The user wakes up the external MCU and outputs low level during power on self-test initialization; (can be suspended) |
| 4 | TXD | Output | TTL UART outputs, connects to external (MCU, PC) RXD input pin. |
| 5 | RXD | Input | TTL UART inputs, connects to external (MCU, PC) RXD output pin. |
| 6 | Ml | Input (weak pull-up) | Work with M1 to decide 4 working modes of module (not suspended, if not used, could be grounded). |
| 7 | MO | Input (weak pull-up) | Work with MO to decide 4 working modes of module (not suspended, if not used, could be grounded). |
| 11 | ANT | Output | Antenna(high frequency signal output, 50 ohm) |
| 12 | GND | - | Ground |
| 13 | GND | - | Ground |
| 14 | GND | - | Ground |
| 18 | NC | - | Empty |
| 19 | NC | - | Empty |
| 20 | NC | - | Empty |
| 21 | +3.3V | - | Power pin when program is loading (suspend, no need to connect, cannot be used as power supply ) |
| 22 | NC | - | Empty |
| 23 | GND | - | Module Ground |
| 24 | NC | - | Empty |