[IC]:AX5243
[Fréquence]:225~237.6MHz
[Puissance]:24~33dBm
[Distance]:8.0km
[Interface]:UART
[Poids]:23.6±0.1g
[Introduction]:E31-230T33D est un module émetteur-récepteur sans fil de 2W fonctionnant sur 225-237.6MHz (230MHz par défaut) avec des tensions d'alimentation de 3.3V et 5V. Il est doté d'un algorithme FEC (Forward Error Correction) et d'une fonction de cryptage et de compression des données.
| Pin No. | Pin Item | Pin Direction | Pin Application |
|---|---|---|---|
| 1 | M0 | Input(weak pull-up) | Work with M1 & decide the four operating modes. Floating is not allowed, can be ground. |
| 2 | M1 | Input(weak pull-up) | Work with M0 & decide the four operating modes. Floating is not allowed, can be ground. |
| 3 | RXD | Input | TTL UART inputs, connects to external TXD (MCU, PC) output pin.Can be configured as open-drain or pull-up input. |
| 4 | TXD | Output | TTL UART outputs, connects to external RXD (MCU, PC) input pin.Can be configured as open-drain or push-pull output. |
| 5 | AUX | Output | To indicate module's working status & wakes up the external MCU. During the procedure of self-check initialization, the pin outputs low level. Can be configured as open-drainoutput or push-pull output (floating is allowed). |
| 6 | VCC | Input | Power supply 2.8V-5.5V DC |
| 7 | GND | Input | Ground |
| 8 | Fixing hole | Fixing hole | |
| 9 | Fixing hole | Fixing hole | |
| 10 | Fixing hole | Fixing hole | |
| 11 | Fixing hole | Fixing hole | |
| 12 | Fixing hole | Fixing hole | |
| 13 | Fixing hole | Fixing hole | |
| 14 | Fixing hole | Fixing hole | |
| 15 | Fixing hole | Fixing hole | |