lora module
these are lora module：E32/E33/E22/E78
EBYTE E220-400R30D LLCC68 LoRa Spread Spectrum RS485 433Mhz 470Mhz 30dBm 10km Wireless Transceiver Receiver Long Range RF Module
$7.97E220-400R30D adopts the new generation LoRa spread spectrum technology based on RS485 module, which is specially designed for LLCC68 chip solution and has multiple transmission modes. It works at (410.125...