LoRaWAN classes

LoRaWAN sensors can work with three classes: Class A, Class B and Class C.

Class A, first class:

• Send a message as set in the LoRaWAN sensor.
• A downlink message is only possible within two receiving slots above the LoRaWAN sensor that has sent a message.
• Most energy efficient.
• Mandatory to any LoRaWAN sensor.

Class B

• Extension to Class A.
• The LoRaWAN sensor listens at a large interval.
• The network sends beacons to the LoRaWAN sensors that determine the interval.
• Less energy efficient than class A.

Class C

• Extension to Class A.
• Download messages possible at any time.
• LoRaWAN sensor listens continuously.
• Not energy efficient
• Few LoRaWAN sensors are still available with Class C.