LoRa/LoRaWAN tutorial 2: What is LoRa and LoRaWAN
Ғылым және технология
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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:
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:
lora-alliance.org/
• LoRa Alliance Introduc...
Check out all my other LoRa/LoRaWAN tutorial videos:
• LoRa/LoRaWAN tutorials
Subscribe to my KZread channel:
/ @mobilefish
The presentation used in this video tutorial can be found at:
www.mobilefish.com/developer/...
#mobilefish #lora #lorawan
Пікірлер: 54
Complete series is simple and easy to Learn ....thank you
Thank you! I really apreciate the well explained video!
Many thanks for your video! very good system.
thanks very mucho for series videos, is very help me
thank you for such concise video
Great video. Thanks very much
An interesting first step towards an open source Internet II. In my opinion :) Im willing to start with bidirectional 300 baud!! lol..Cheers.
such a great video.. 4 thumbs up
thank you for the video
Great Video !!!
Excellent explanation
Very nice. Thanks. Instead of Concentrator, perhaps the term packet-forwarder should be used?
Please could you explain if some reselection or handover process is supported (as mobile nerwork does) when a sensor goes from one LoRa GW coverage to another LoRa GW coverage. Thanks in advance
Well done thank you...
sir can you explain what type of antenna is used in LoRawan end node?
In the meantime "LoRa Meshtastic" has emerged. We have a ( sailing ) dinghy racing use case. The floating buoys have a Battery powered GPS LoRa module and the Rescue boats also have LoRa GPS units. The Start Box has an Wifi LoRa unit so that all Buoys and Boats can be mapped onto a Google Earth map for measuring Course length for VMG calculations and Rescue Boat locations for safety management and for course management.
so the points, lora is the module(physical) and lorawan is the name of protocol, right ? if i have one node with 915 mhz freq, and i made a gateway(used radioahead library), then node can broadcast the data to the gateway, the comunication about that (end node and gateway) with that freq it can be called lorawan ? many thank's for your video sir
Hey I want to know does we can create a lora network with unique id for particular lora As SIM cards does
is it same between Network server in the LORA environtmen with the IoT Platform in the IoT ecosystem
can we make a 70 km range distance with LoRa? please help me to know
Please tell the command that is use for receiving data back in Lora device🙏
Thank you very much. You are doing a great Job!! much appreciated. Please advise what are the documents/forums I should read/follow to enrich my knowledge about Lora NS, GW, and devices. I've been in the telecom and internet market for 20 years now but not on the SW side at all :) how can I start to learn more about the SW applications and application server?
@dhanarajkasina
5 жыл бұрын
Tq sirrr😍😍
@Mobilefish
5 жыл бұрын
Most of my information I get from: lora-alliance.org/ www.thethingsnetwork.org www.thethingsnetwork.org/forum/
Is it possible to convert video into the data stream in such a way that it can be transmitted through LoRa technology ?
@Mobilefish
4 жыл бұрын
No, LoRa technology is intended for small data packages. For example sensor data.
How to use radio head library for communicating between two LoRa nodes? are there any example videos.
@Mobilefish
5 жыл бұрын
I have not made videos about it. Search KZread, maybe someone made such videos.
Nice video! I'll capture voice with a headset connected on arduino, I need make voice broadcast only local network (like a voice conference) with others 5 same devices, It's possible? Send and receive voice in realtime (or with a little delay)?
@eduandrz
5 жыл бұрын
No, Lora concept is not applicable for voice data.
so your nme is mobile fish does that mean that your mobile is water proof ?
Very interesting! Do you explain somewhere in your videos if it is possible to connect an endnote directly to a let's say smartphone APP via wireless, Bluetooth or alike without going through a LoRaWAN network?
@polyglotdev
5 жыл бұрын
It is possible if you build a custom end node. There are many single board computer in the market that can be plugged in with both LoraWan and Bluetooth modules. But remember LoraWan is a narrow band communication device. Meaning you can not surf the web with it let alone using it for video or audio transmissions.
@deercampproductions
4 жыл бұрын
@@polyglotdev is there any way possible to send pictures or video long range?
@SpaceCadet4Jesus
4 жыл бұрын
@@deercampproductions At a max of 5kbps, sure, we can send the pictures and videos, but each one takes a few weeks. Have fun.
Could you please help me to understand the Join Process in crispy and clearer way ?
@Mobilefish
5 жыл бұрын
Watch Tutorial 21 and 22
hello thanls for the video please tell me can a two end nodes talk with each other i mean if i can use a modbus protocol and converted to lorawan protocol and send packets
@Mobilefish
4 жыл бұрын
Peer to peer communication between two nodes is possible. I have never tried this before and it has nothing to do with LoRaWAN. See: circuitdigest.com/microcontroller-projects/raspberry-pi-with-lora-peer-to-peer-communication-with-arduino
sir tell me how to purchase rn2483 microchip and gateway related to it?? please reply for this sir thanking you
@Mobilefish
5 жыл бұрын
I think it is best that you Google this answer. It all depends were you live. By the way: I have not bought the RN2483 microchip myself. The gateway I use is from The Things Network, but today there are more manufactures making LoRaWAN gateways (do not buy single channel gateways, because these are not real LoRaWAN gateways), with lower price. Soon I will make videos about Gateways.
How Manu bytes can i send in lorawan?
CAN YOU PLEASE TELL ME HOW TO CONNECT THE GATEWAY TO THE NETWORK SERVER? is it done using modules like ESP8266 OR nRF24L01?
@Mobilefish
5 жыл бұрын
A LoRaWAN gateway needs access to the Internet to access the network server. These gateways are connected to a router by Ethernet cable or WiFi. It is possible that gateways have build in routers. The end nodes sends data to the gateway using the LoRa wireless data communication (Not the same as WiFi!).
The LoRaWAN protocol does not support direct communication between end nodes. explain this statement sir.....please
@Mobilefish
5 жыл бұрын
LoRaWAN is about sending sensor data from end nodes to gateway to application server. This whole infrastructure. It is not about sending sensor data from end node to end node. Of course you CAN send sensor data from end node to end node, but it is not "supported/specified" in the LoRaWAN protocol.
@surendernathkomala6978
5 жыл бұрын
.
@pigmyable
3 жыл бұрын
@@Mobilefish but is it possible to send sensor data from an end not to end node as well as the to the gateway concurrently?
is it possible to transmit voice over LoRa
@Mobilefish
3 жыл бұрын
Sorry, no you can not transmit voice. Only small data packages.
@rohiniik
3 жыл бұрын
@@Mobilefish LAP E01 voice transciver device.how it uses lora then
@rohiniik
3 жыл бұрын
@@Mobilefish www.kiwi-tec.com/en/products/lora-devices/lap-e01/
@Mobilefish
3 жыл бұрын
Thanks for correcting me. I did not know this. Everyday I learn new things.
sk.shahin