Módulo inalámbrico SX1278 433MHz 2W TTL LoRa
[Solución de chips]： SX1278
[Frecuencia de carga]：410~441MHz
[Potencia de transmisión]： 33dBm
[Distancia de comunicación]： 16km
[Tamaño del producto]： 25*40.5mm
[Introducción]：E32-433T33S es un módulo de puerto serie inalámbrico (UART) basado en el chip RF SX1278 de SEMTECH. Tiene múltiples modos de transmisión, trabajando en 410 MHz ~ 441 MHz, (predeterminado 433 MHz), tecnología de espectro ensanchado LoRa.
| Pin No. | Pin Item | Pin Direction | Pin Application |
|---|---|---|---|
| 1 | GND | Input | Module ground |
| 2 | VCC | Input | Power supply ：3.3~ 5.5V DC |
| 3 | AUX | Output | Used to indicate the working status of the module; the user wakes up the external MCU, and the Output is low during the power-on self-test initialization Level; (can be left floating) |
| 4 | TXD | Output | TTL serial port output，connect to external RXD Input pin； |
| 5 | RXD | Input | TTL serial port input, connect to external TXD output pin |
| 6 | M1 | Input（weak pull-up） | work with M0, to define 4 working mode(not floated,connect to ground when not using ) |
| 7 | M0 | Input（weak pull-up） | work with M1, to define 4 working mode(not floated,connect to ground when not using ) |
| 11 | ANT | Output | Antenna, 50ohm impedance |
| 12 | GND | - | fixed orifice |
| 13 | GND | - | fixed orifice |
| 14 | GND | - | fixed orifice |
| 18 | PB0 | Input/Output | NC pins for future development, no need to connect |
| 19 | PB1 | Input/Output | NC pins for future development, no need to connect |
| 20 | PB3 | Input/Output | NC pins for future development, no need to connect |
| 21 | +3.3V | Input | Power pin when loading program(floated, no need to connect) |
| 22 | SWIM | Input | SWIM pin when loading program(floated, no need to connect) |
| 23 | GND | Input | Ground pin when loading program(floated, no need to connect) |
| 24 | RESET | Input | Reset pin when loading program(floated, no need to connect) |