ZigBee is an open, global standard protocol designed specifically for M2M networks.Wi-Fi is the use of radio waves (RF) to enable two devices to communicate with each other.Bluetooth and Bluetooth Low Energy (BLE) are wireless technologies used to transmit data over short distances.<br /><br />Starting today ! Get a free lora sample. One id(only companny & institute) is limited to 2 pieces, and the activity ends on 15th Nov. Quantities are limited, rush to buy now! https://youtu.be/YpbjGZ1mRMY<br /> https://www.cdebyte.com/news/373