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.