Ebyte 5km Long Range Remote Control 433MHz Lora Transmitter Receiver Module sx1278
[IC]：SX1278
[Frequency]：410~441MHz
[Power]：21~30dBm
[Distance]： 8.0km
[Interface]：UART
[Weight]：5.0±0.1g
[Introduction]：Based on originally imported RF IC SX1278 from SEMTECH, E32-433T30S is a SMD wireless module (UART) operates at 410-441MHz and features LoRa technology, data encryption & compression.
| Pin No. | Pin Item | Pin Direction | Pin Application |
|---|---|---|---|
| 1 | M0 | Input（weak pull-up） | Work with M1 & decide the four operating modes. Floatingis not allowed, can be ground. |
| 2 | M1 | Input（weak pull-up） | Work with M0 & decide the four operating modes. Floatingis 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 | Voltage reference of module. Power supply 3.3V ~ 5.2V DC |
| 7 | GND | Input | Ground |
| 8 | RESET | Input | Reset pin when program is loading（floating，users do not need toconnect） |
| 9 | GND | Input | Ground pin when program isloading (floating，users do not need to connect） |
| 10 | SWIM | Input | SWIM pin when program isloading (floating，users do not need to connect） |
| 11 | +3.3V | Input | Power supply pin whenprogram is loading (floating，users donot need to connect） |
| 12 | PB3 | Input /Output | NC pin，need to be floating，not connected（for further development） |
| 13 | PB1 | Input /Output | NC pin，need to be floating，not connected（for further development） |
| 14 | PB0 | Input /Output | NC pin，need to be floating，not connected（for further development） |
| 15 | GND | - | Ground |
| 16 | GND | - | Ground |
| 17 | GND | - | Ground |
| 18 | ANT | Output | Antenna connector(high level output, 50 characteristic impedance) |