[IC]：SX1278

[Frequency]：410~441MHz

[Power]：19~20dBm

[Distance]：3.0km

[Interface]：UART

[Introduction]：E32-433T20D is a wireless serial port module based on Semtech's SX1278 RF chip Block (TTL level), transparent transmission mode, working in the 410-441MHz frequency band (default 433MHz), using LoRa spread spectrum technology.