[La fréquence]:850.125~930.125MHz
[Du pouvoir]:30dBm
[Distance]:10km
[Taille]:24*43mm
[Poids du produit]:11±0.2g
[Introduction]:E22-900T30D est un module sans fil (UART) basé sur la solution lora de SEMTECH. Il dispose de plusieurs modes de transmission et fonctionne à 850,125 MHz ~ 930,125 MHz (868,125 MHz par défaut). Utilisant la technologie à spectre étalé LoRa, sortie de niveau TTL, compatible avec la tension du port IO 3,3 V et 5 V
| Serial Number | pin | Pin direction | Remark |
| 1 | M0 | Input (very weak pull-up) | In conjunction with M1, it determines the module's four operating modes (it cannot be left floating; if not in use, it can be grounded). |
| 2 | M1 | Input ( very weak pull-up ) | In conjunction with M0, it determines the module's four operating modes (it cannot be left floating; if not in use, it can be grounded). |
| 3 | RXD | Input | TTL serial port input, connected to the external TXD pin (configurable as open drain or pull-up input, see manual for details). |
| 4 | TXD | Output | TTL serial port output, connected to the external RXD pin (configurable as open-drain or push-pull output, see manual for details ). |
| 5 | TO | Output | Used to indicate the module's operating status; outputs a low level during the power-on self-test initialization period when the user wakes up the external MCU. It can be configured as an open-drain output or a push-pull output; see parameter settings for details. (Can be left floating) |
| 6 | VCC | Input | Module power supply positive reference, voltage range: 3.0V~5.5V DC |
| 7 | GND | Input | Module ground wire |
| 8 | Fixing hole | Fixing hole | |
| 9 | Fixing hole | Fixing hole | |
| 10 | Fixing hole | Fixing hole | |
| 11 | Fixing hole | Fixing hole |