LoRa Distance Testing with RYLR998 in open field - Amazing results!
Переглядів 41,702
День томуIn this video, I will be exploring LoRa communication for the first time and I will be making two devices that I can test and measure the distance at which they will be able to communicate.
The LoRa modules that I will use are the RYLR998 from Reyax. These modules operate on the 868/915MHz LoRa range and have a theoretical operation range of a few kilometers.
Depending on the conditions, this can sometimes be much more as you can see in the video.
REYAX Official Website
reyax.com/products/rylr998/
RYLR998 Purchase Links :
www.techdesign.com/market/rey... (TECHDesign)
www.amazon.com/REYAX-RYLR998-... (Amazon)
Instructables article for the project:
www.instructables.com/LoRa-Di...
Code used on the devices
github.com/bkolicoski/rylr998...
Tools and materials used in the video:
NodMCU Development board - s.click.aliexpress.com/e/_9uWH0D
Breadboard - s.click.aliexpress.com/e/_AYbD2V
Mini Breadboards - s.click.aliexpress.com/e/_A0gvZL
USB OTG Adapter - s.click.aliexpress.com/e/_AqUV8p
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My recording gear:
Canon M50 Mark ii - s.click.aliexpress.com/e/_A6tEqv
Samsung A71 - s.click.aliexpress.com/e/_dX2...
SJ400 Action camera - s.click.aliexpress.com/e/_ssJRaL
USB Condenser Microphone - s.click.aliexpress.com/e/_sMcKML
Tripod - s.click.aliexpress.com/e/_stDAGL
Phone tripod mount - s.click.aliexpress.com/e/_s9WaiJ
LoRa Distance Testing with RYLR998 in open field - Amazing results!
#lora #arduino #lorawan #nodemcu #tastethecode
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@Bianchi77 7 місяців тому
Nice video, well done, thank you for sharing the knowledge with us :)
@TasteTheCode 7 місяців тому
♥️♥️♥️
@alper0karaca 8 місяців тому
Thanks bro for video. This is great
@TasteTheCode 8 місяців тому
Glad you liked it! 👍
@tnk.1608 3 місяці тому
Thank you a lot! Really helpful for an undergrate in Electrical Engineering like me.
@TasteTheCode 3 місяці тому
You are welcome! I'm glad you found it helpful.
@erintyres3609 25 днів тому
Thank you, I hope to make a similar demonstration at ARRL Amateur Radio Field Day in June. I am happy to see that a cell phone can power the devices and act as a display.
@TasteTheCode 25 днів тому
Yes, the phone needs to have OTG support but most do anyway. And you need an OTG cable or adapter.
@grimtagnbag Місяць тому
These are so sweet. Made a dropper for my drone with an Esp32. Now want to go long range with no worries. This is the ticket.
@TasteTheCode Місяць тому
Yes, this can be used for that and should work great.
@bhavinpithawala3967 Рік тому
thanks for sharing.
@TasteTheCode Рік тому
You are welcome!👍
@salihcelik4985 Рік тому
Good job mate , thanks for sharing. I have a question. Can we detect real time distance from transmitter to reciver?
@TasteTheCode Рік тому
Hmmmm not that I'm aware of, unless you use a GPS module as well. Maybe you can use a timecode on the sender and then another timecode on the receiver but these clocks will need to be perfectly sincronized so you can then calculate the delay between sending and receiving. Sounds possible but it will be very difficult to pull out in reality.
@salihcelik4985 Рік тому
@@TasteTheCode Ok. Thank you again ı will try
@mast3rbug 18 днів тому
Must try with two yagi antennas on these modules. I made some reliable communication relay with wifi cards at 2.4 GHZ and two yagi at 15 KM with really good bitrate. 915 MHZ must be more than that easily.
@TasteTheCode 18 днів тому
Yeah, these do those distances with just the coil antennas on them. Unfortunately I don't have Yagi antennas to try, but it might be an interesting avenue to explore. Thanks!
@jacquesb5248 Рік тому
impressive range. pitty data rate isn't fast but that it was designed for. short messages not lots of data transfer unless you use like multiple units for multiplexing?
@TasteTheCode Рік тому
Yes, this is only for short messages. As for multiplexing, I don't know if that is even possible. But for reading out sensor values and sending short commands it is ideal!
@sodapopinski9922 2 роки тому
was there any obstructions? at all, i think im going to head out west and try it in the salt flats in the US
@TasteTheCode 2 роки тому
No, there were no obstructions. My house is on a hillside and there is open view to the relatevely flat valley in front pf it. At the 5.7km mark, there were some houses in between and the communication only worked from outside the car.
@TakamiWoodshop 2 роки тому
Holy crap ! that little thing is amazing!
@TasteTheCode 2 роки тому
Sure it is! I'm currently planning how to use it next.
@winstonsmith478 Рік тому
From your code, I see that you used the max baud rate of 115200. Does the LoRa's transmit baud rate vary depending upon the serial bus baud rate or is it sent at the same rate in a packet no matter what the serial bus rate is set at? If it varies, a lower baud rate setting might result in even greater range.
@TasteTheCode Рік тому
From what I'm aware of serial baud rate does not affect the transmit baud rate. It's just the way that the microcontroller talks to the module. To get better range, you might lower the baud rate of the module by issuing the right command.
@MrNams 11 місяців тому
One update, now AT command is returning +ERR=5, when i try to execute AT+SEND command from esp32
@4uidrum 7 місяців тому
Great video, thank you! Couple quick questions: (1) I'm not an engineer, so pardon if my question doesn't make sense... but is it be possible to send a tiny packet of data from the TX to the RX within 7ms or less? Also (2) is it possible to have each LoRa setup to send and receive (bi-directional)? Thanks! :)
@TasteTheCode 7 місяців тому
Hey, thanks! So LoRa is bidirectional so yes, you can send packages from any to any device but the time it takes greatly depends on the distance as well. If the devices are close enough, maybe. I haven't measured this to know for sure but it always works quite quickly. I'm interested why you need it to be in 7ms?
@4uidrum 7 місяців тому
@@TasteTheCode wow thank you for the quick response and answers! :) I'm currently trying to setup a simple wireless proof-of-concept for a new digital music instrument. Closest technology to it are professional UHF wireless microphones. Anything over 7ms starts feeling delayed with live audio situations. Thank you again for the video and help! :)
@TasteTheCode 7 місяців тому
Wow, that sounds like a cool project. I'm not aware of LoRa being used to send music at distance because of the small package size but since it is digital it might work. If I were you I would probably go with the 2.4GHz spectrum (WiFi, Bluetooth). In any case, good luck with it!
@4uidrum 7 місяців тому
@@TasteTheCode yes, 2.4GHz. :) Thank you so much!
@danhellgren5671 Рік тому
Can you recommend a Terminal APP for the phone? and does the App change the phones USB to work in USB-HOST mode?
@TasteTheCode Рік тому
I'm using "Serial USB Terminal" app and it worked beautifully. The app is not the one that makes the USB into a host but the adapter/cable used. You will need a USB OTG cable or adapter so the phone can recognize the device connected.
@loudroarYT 7 місяців тому
Hi! Fellow tinker here trying to replicate your project. Do you have a video with the arduino ide settings? I keep getting error messages when trying to compile. I'm a noob with Arduino IDE so it could just be me. I have the com port selected, baud 115200, Both NL&cr. I can see the board booting up in the serial monitor but thats about how far I can get.
@TasteTheCode 7 місяців тому
Check the video description, I have a link to the code running on both devices. In theory you can open that, compile it, upload it to the devices and be good to go. One thing to note is the version of the software serial library that is different for NodeMCU and Arduino boards.
@DavOlek_ua 4 місяці тому
how much date could you squeeze in this link? what's the bandwith? ping? like what you could really use it for?
@TasteTheCode 4 місяці тому
It depends on the parameters used but in general it is 0.3 kbit/s to 50 kbit/s. The purpose of it is to have sensor data collected from a remote, very low power usage sensor.
@dabdoube92 3 місяці тому
I get +11 km range on LoRaWAN using 15 dBm and a 3dBi antenna :)
@TasteTheCode 3 місяці тому
Nice!
@radhwanbasher 3 місяці тому
Do you do the same configurations with same code?
@RafaelSales55 3 місяці тому
Thank you for the video. Do you think it's possible to see video realtime using those LoRa?
@TasteTheCode 3 місяці тому
No, not at all. They are only meant to periodically transmit small packets like sensor data. For video, you need to look at 4G or 5G GSM modules but they need quite a lot of power.
@RafaelSales55 3 місяці тому
@@TasteTheCode Thank you a lot, I was wondering how those drones reach 10km using camera
@TasteTheCode 3 місяці тому
@@RafaelSales55 sorry, I can't tell as I haven't explored their radios but that might be an interesting point of research. Thanks!
@roscoe454 4 місяці тому
on the roof of the car use a magnet to hold a external antenna so it will send and recieve better
@TasteTheCode 4 місяці тому
Yes there are magnetic antennas available that you can purchase.
@NicksStuff 3 місяці тому
Do you know what power, bandwidth and spreading factor you were using?
@TasteTheCode 3 місяці тому
Just the default of the module0 which based from the datasheet are Spreading Factor: 9, Bandwidth: 125kHz, Power: 22dBm
@StreuB1 Рік тому
What is the difference between LoRa and a normal 915mhz UART transceiver module from someone like HopeRF? I really struggle to understand the terminology and what the differences are. Great video!!! Thank you!
@TasteTheCode Рік тому
Thanks! I haven't got a module from HopeRF yet to test but from what I know this allows you to set your own standard of sending while a LoRa module already uses a defined standard. If I'm not mistaken, I think that you can use this modules with LoRa as well. The UART specification just defines how you comunicate between the module and your microcontroller.
@StreuB1 Рік тому
@@TasteTheCode Ahhh, I think I understand now. I always get confused between the data communication between devices and communication over RF. So LoRa is the RF protocol. I am an electro-mechanical engineer who is trying to learn electronics and programming. I love it but unfortunately the bar for entry is pretty steep and there aren't many resources out there that explain certain aspects in extremely basic terms to get you going. I just stumbled upon your videos and they are fantastic!! BTW Macedonia is a BEAUTIFUL country!!!! Thanks again from currently frigid Illinois, USA.
@TasteTheCode Рік тому
You are welcome! Yes LoRa is the RF protocol. It can be on different frequencies depending on the local law. In Macedonia is on 868MHz. Have you been to Macedonia? Usually we are the ones with snow but now it seems that the weather is quite different.
@itsamevic Рік тому
Hey, so just to clarify some things: LoRa is a technology of it's own, meant for wireless sensor networks, so its main focus is to be power efficient and long range ("LoRa" actually means "Long Range"). The way it handles radio waves isn't as simple as a typical UART transceiver, it uses chirp signals and some engineering (that I'm too dumb to explain 😅) to make the signal travel a very long distance (at the cost of low data rates, up to 50kbps). However, LoRa itself is basically just the "hardware level" technology that deals with the signal. A MAC layer protocol called "LoRaWAN" was then created, so that different sensors could communicate with each other in a network of LoRa devices and also to make it possible for them to communicate with the internet. For example, a LoRa end device in Australia can communicate with another in the UK, what happens is that a LoRa end device talks to a LoRa gateway in Australia, the LoRa gateway in Australia communicates with the other LoRa gateway in the UK through the internet and finally the LoRa gateway in the UK communicates with the LoRa end device. To sum up: - LoRa is the technology that makes power-efficient, long-range radio communications. - LoRaWAN is the MAC layer protocol that makes LoRa versatile.
@TasteTheCode Рік тому
Well said!
@TylerHaddix Рік тому
What was your max at+send string length?
@TasteTheCode Рік тому
About 45 characters... Why?
@user-ko1if8nt6g 10 місяців тому
Can I use another Laura model for this project?
@TasteTheCode 10 місяців тому
Sure you can. Any LoRa module should be usable in a project. It all depends on your requirements and objective.
@hofertyp Рік тому
Which country is this, Looks like beautiful Macedonia 🇲🇰? Which Spred Factor and Transmit power did you use? With an heltec esp32 lora module I managed to get 500m in an urban area with SF 11 and TX of 18dbm. Would be interested in a second video with more content:)
@TasteTheCode Рік тому
Hey, yes I'm based in Macedonia! The modules were set at their defaults of SF 12 and output power of 15dBm. What would you like to see if I make a second video on them? 👋👋
@hofertyp Рік тому
@@TasteTheCode Maybe the maximum bandwith with different SF and Stability eg. rain/foggy weather would be nice. Extra Bonus if you test different LoRa ESP32 Modules to determine the Top3 for example. Keep up the good work - will subscribe :)
@TasteTheCode Рік тому
@@hofertyp Thank you and thanks for the suggestions! I'll definitely include them if I decide to make another video.
@grizzlycountry5539 11 місяців тому
@@TasteTheCode Znao sam da je Balkan čim sam vidio ovu kuću na četiri vode, to je Turski stil gradnje.
@hackertomobile Рік тому
what app you use for terminal arduino?
@TasteTheCode Рік тому
The app is called "Serial USB Terminal". It worked perfectly every time.
@saichaitanya1582 2 роки тому
We are working on the same module could you help us working with it in any way....can we contact you regarding it.
@TasteTheCode 2 роки тому
I'm not much of an expert in it but let's see what your problem is?
@pykid1915 Рік тому
can you do a video on using Lora with raspberry pi or any other sbc's
@TasteTheCode Рік тому
That's a good idea. I'll try to do it soon.
@pykid1915 Рік тому
@@TasteTheCode thankyou ✨😁
@Josueee7 Рік тому
Seria mas potente que RFM96 LoRA? mostrar RSSI o dBm en el siguiente video! Buen video!
@TasteTheCode Рік тому
Thanks for the tip! I don't own such module so I would not know to tell if that one is better.
@psikeyhackr6914 4 місяці тому
What is the maximum data rate, how many bits/sec?
@TasteTheCode 4 місяці тому
It depends on the circumstances but it ranges from 0.3 kbit/s to 50 kbit/s
@Francois_Dupont 5 місяців тому
what country is this? very interesting!
@TasteTheCode 5 місяців тому
Macedonia! Thanks!
@Francois_Dupont 5 місяців тому
@@TasteTheCode it is funny you have a similar accent to a French Canadian person speaking english. hahaha. 😁 anyway thank you for your videos!
@TasteTheCode 5 місяців тому
Hahhahah that's a first. I do not know a word in French but it's funny how it sounds like that. Many compare our English accent as to that of Russians but never French. 😂😂 Thanks for watching!
@baran1405 Рік тому
I wander what the terminal you are using in your phone...?
@TasteTheCode Рік тому
It is an app called Serial USB Terminal.
@MrNams 11 місяців тому
How to pass AT commands to Lora from ESP32 UART? I am not able to send Address,Band, network id through program ?
@TasteTheCode 11 місяців тому
@@MrNams You do it exactly like I do with the NodeMCU but you will need to find a Software Serial Library that is meant to work with ESP32 boards (try this one: github.com/plerup/espsoftwareserial) and also make sure that the wiring is connected as stated in the sketch. Maybe even try swapping RX and TX as they need to be crossed.
@MrNams 11 місяців тому
@@TasteTheCode Its successfully receive data, it fails to send data i.e. At command through Serial Print not properly sent by ESP32 to Lora
@TasteTheCode 11 місяців тому
@@MrNams That's weird. Does it have an error? Check the line termination character.
@pedro96465 6 місяців тому
Is it possible to know the distance from each other?
@TasteTheCode 6 місяців тому
No, not without additional hardware like GPS modules.
@pedro96465 6 місяців тому
@@TasteTheCode not even if we use the send time and use some mathematical formula?
@BlagojceKolicoski 6 місяців тому
@@pedro96465 yes but then you run into the challenges of syncing time. If you figure it out, let me know.
@fpgamachine 11 місяців тому
What chip does it use?
@TasteTheCode 11 місяців тому
In the specs, it says: "NUVOTON MCU & Semtech LoRa Engine".
@HariKrishnan-on1yf 2 роки тому
Connection diagram?
@TasteTheCode 2 роки тому
Hey Hari, it's very simple. D6 (pin 14) is connected to RX on the module and D5 (pin 12) to TX on the module. Additionally, the module is powered from 3.3V out on the NodeMCU module. That's all.
@sergiusvysokochtimiy 4 місяці тому
What's surprising? You test devices in line of sight. There are no other similar devices, so the interference level is very low. This reminds me of the situation with WiFi 2.4 at the dawn of development
@TasteTheCode 4 місяці тому
Maybe but I'm new into this and for me it was really surprising and amazing to communicate on such distance with low power.
@minsafatima7242 Рік тому
is this transmit voice
@TasteTheCode Рік тому
No, LoRa is ment to be used with small sensor data.
@mehulchawda8807 9 місяців тому
nearly 5 to 6 km range
@pedromendes8595 9 місяців тому
did you do everything like the video? It's giving me an error 1
@mehulchawda8807 9 місяців тому
@@pedromendes8595 no sir I just save time of people who is watching video
@TasteTheCode 9 місяців тому
:D
@pedromendes8595 6 місяців тому
How is it possible to get 8km, I did everything the same and I can only communicate for a maximum of 50m :(
@TasteTheCode 6 місяців тому
How are your antennas placed? For me it was important to have line of sight between them. If you don't then it only works at small distances.
@Francois_Dupont 5 місяців тому
Meshtastic LoRa on 915mhz @ 100mA has been sucessfully tested up to 250kms.
@pedromendes8595 10 місяців тому
Hello! I tried to make this project but it keeps sending me an error... :( What do you think it could be? AT+SEND=1,26,Hello from Dev2 - Count: 0 +OK +ERR=1
@TasteTheCode 10 місяців тому
Without looking at the code it is a bit difficult to know what is going on. Have you checked the formatting of the message? Maybe some extra CR?
@pedromendes8595 10 місяців тому
@@TasteTheCode I simply bought the mentioned material, made the same connections and in the end the two modules dont communicate, supposedly they are sending a signal, but none of them receive it
@gigigisi6297 10 місяців тому
There is not “enter” or 0x0D 0x0A in the end of the AT Command.
@pedromendes8595 10 місяців тому
@@gigigisi6297 but I have the same code... what I have to do to solve this error?
@gigigisi6297 10 місяців тому
@@pedromendes8595 Maybe you can try AT+SEND=1,5,HELLO
@steffanjansenvanvuuren3257 3 місяці тому
To slow for RC Airplane Radio Receiver/telemetry products.
@TasteTheCode 3 місяці тому
Yes, true. This is more for a sensor data.
@RetoonHD 24 дні тому
correct - that is not what lora was designed for though. It's like saying a car is not a good boat because it can't float - but it wasn't designed to float.
@PCBoardRepair 4 місяці тому
car = faraday cage
@TasteTheCode 4 місяці тому
Yeah, it blocked some of the signal but still it worked quite well.
@PCBoardRepair 4 місяці тому
@@TasteTheCode yes....nice
@steveholder7289 4 місяці тому
The car might be blocking some of the signal, but it is also reflecting and providing a mulit-path. If the module api provides an RSSI figure it would be interesting to see what the sending and receiving units are seeing.
@PCBoardRepair 4 місяці тому
@@TasteTheCode yes agreed....I was just pointing this out to creater
@ThumperKJFK 5 місяців тому
👍✌
@TasteTheCode 5 місяців тому
👍👍👍
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