LoRaLoRaWAN tutorial 2 What is LoRa and LoRaWAN

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=6WMzRrmMjQU

If you like this video and want to support me, go this page for my donation Paypal or crypto addresses: • / mobilefish • This is part 2 of the LoRa/LoRaWAN tutorial. • In this video series different topics will be explained which will help you to understand LoRa/LoRaWAN. • It is recommended to watch each video sequentially as I may refer to certain LoRa/LoRaWAN topics explained earlier. • In this video I will explain what the difference is between LoRa and LoRaWAN. • Several products will be shown in this video. • They are not payed endorsements. I have bought all these products myself. • There are many LoRa gateway and Lora development board manufacturers. • If you plan to buy such products do your own research. • LoRa is an acronym for Long Range and it is a wireless technology where a low powered sender transmit small data packages (0.3 kbps to 5.5 kbps) to a receiver over a long distance. • A gateway can handle hundreds of devices at the same time. • A LoRa end node consists of 2 parts: • A radio module with antenna. • A microprocessor to process for example the sensor data. • End nodes are often battery powered. • A LoRa device (end node) has a wireless transceiver. • If this device also has sensors, this device acts as a remote sensor. • Such a device is called a mote, short for remote. • A LoRa gateway consists of 2 parts: • A radio module with antenna. • A microprocessor to process the data. • Gateways are mains powered and connected to the Internet. • Multiple gateways can receive data from the same end node. • The gateways can listen to multiple frequencies simultaneously, in every spreading factor at each frequency. • LoRaWAN network architecture is deployed in a star topology. • The communication between the end node and gateway is bidirectional which means the end node can send data to the gateway but it can also receive data from the gateway. • When an end node transmits data to the gateway it is called an uplink. • When the gateway transmits data to the end node it is called a downlink. • LoRaWAN how it works • An end node broadcast its data to every gateway in its vicinity. • The gateways forward this packet to the network server. • The network server collects the messages from all gateways and filters out the duplicate data and determines the gateway that has the best reception. • The network server forwards the packet to the correct application server where the end user can process the sensor data. • Optionally the application server can send a response back to the end node. • When a response is send, the network server receives the response and determines which gateway to use to broadcast the response back to the end node. • The LoRaWAN protocol does not support direct communication between end nodes. • If you want direct communication between LoRa devices without the use of gateways, use the RadioHead Packet Radio library for embedded microprocessors. • It provides a complete object-oriented library for sending and receiving packet sized messages via a variety of radios such as LoRa on a range of embedded microprocessors: • https://www.airspayce.com/mikem/ardui... • RadioHead does not have an official GitHub repo but several people have cloned the Radiohead library on GitHub. • The LoRaWAN protocols are defined by the LoRa Alliance. • It is a non-profit organisation of more than 500 member companies, committed to enabling large scale deployment of LPWAN IoT through the development and promotion of the LoRaWAN open standard. • More information about the LoRa Alliance: • https://lora-alliance.org/ • • LoRa Alliance Introduction • Check out all my other LoRa/LoRaWAN tutorial videos: • • LoRa/LoRaWAN tutorials • Subscribe to my YouTube channel: • / @mobilefish • The presentation used in this video tutorial can be found at: • https://www.mobilefish.com/developer/... • #mobilefish #lora #lorawan

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