EBYTE Sx1278 433 mhz 30DBM E32-433T30D 8KM
| 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-drain output or push-pull output. (Floating is allowed) |
| 6 | VCC | Input | Power supply 3.3V~5.2V 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 |