E32-433T20S SEMTECH's LoRa solution Long-distance anti-interference transparent transmission LoRa micro module
[Frequency]：410~441MHz
[Power]：20dBm
[Distance]：5km
[Product weight]：2.3±0.1g
[Size]：16 * 26mm
[Introduction]：E32-433T20S is a wireless serial port module (UART) based on SEMTECH's LoRa solution. It has a variety of transmission modes, working at 410MHz~441MHz, (default 433MHz), LoRa spread spectrum technology.
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| Serial number | Pin | Pin direction | Remark |
|---|---|---|---|
| 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 |