[frecuencia]:862~930MHz
[poder]:20dBm
[distancia]:5.5km
[tamaño]:16*26mm
[peso]:2.2±0.1g
[Introducción]:E32-900T20S es un módulo de puerto serie inalámbrico (UART) basado en el chip SX1276 RF de SEMTECH. Tiene múltiples modos de transmisión, trabajando en la salida 862MHz~931MHz, LoRa spread Spectrum Technology, TTL.
Pin No. | Pin Item | Pin Direction | Pin Application |
---|---|---|---|
1 | NRST | import | Module reset pin |
2 | GND | - | Module ground wire |
3 | NC | - | Empty feet |
4 | NC | - | Empty feet |
5 | NC | - | Empty feet |
6 | NC | - | Empty feet |
7 | NC | - | Empty feet |
8 | GND | - | Module ground wire |
11 | GND | - | Module ground wire |
12 | ANT | output | Antenna interface (high-frequency signal output, 50 ohm characteristic impedance) |
13 | GND | - | Module ground wire |
14 | GND | - | Module ground wire |
15 | GND | - | Module ground wire |
16 | GND | - | Module ground wire |
19 | GND | - | Module ground wire |
20 | M0 | Input (very weak pull-up) | With M1, determine he four working modes of the module (not suspended, if not grounded) |
21 | M1 | Input (very weakpull-up) | With M0, determine the four working modes of the module (not suspended, if not grounded) |
22 | RXD | import | TTL serial port input, connected to the external TXD output pin; |
23 | TXD | output | TTL, serial port output, connected to the external RXD output pin; |
24 | AUX | output | Used to indicate the working state of the module; user awakens external MCU and output low level during self-test initialization (can be suspended) |
25 | VCC | - | Module power supply is positive reference, voltage range: 2.7~5.5V DC |
26 | GND | - | Module ground wire |