Yes, the phone needs to have OTG support but most do anyway. And you need an OTG cable or adapter.

Yes, this can be used for that and should work great.

You are welcome! I'm glad you found it helpful.

Nice!

Do you do the same configurations with same code?

Yeah, it blocked some of the signal but still it worked quite well.

@@TasteTheCode yes....nice

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.

@@TasteTheCode yes agreed....I was just pointing this out to creater

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!

♥️♥️♥️

You are welcome!👍

Yes there are magnetic antennas available that you can purchase.

Glad you liked it! 👍

Just the default of the module0 which based from the datasheet are Spreading Factor: 9, Bandwidth: 125kHz, Power: 22dBm

Sure it is! I'm currently planning how to use it next.

Maybe but I'm new into this and for me it was really surprising and amazing to communicate on such distance with low power.

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!

Thanks for the tip! I don't own such module so I would not know to tell if that one is better.

Yup everything at default on 868MHz.

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.

@@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.

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.

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.

Well said!

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.

Yes, in my case they do have a line of sight. If they do not, then it really comes down to environment and how hidden they are from each other. In those cases the range goes down to just several hundred meters but it needs to be tested.

Yes this is possible. Try searching for LoRa messenger. I'm not exactly sure who did this.

Meshtastic or LoRaWan

@@zazugee I know Meshtastic has that capability.. I just haven’t seen a device using the RYLR998 that does this. Surely, someone has? I just haven’t run across it yet. The range sounds incredible

@@VanceLambert Meshtastic on RPi should work with it as long as it supports SPI. I was just looking into this. You have to change the pin outs and some other configs stuff since I don’t think this chip is in the default list, since as far as I read, the RPi support for meshtastic is pretty new. Looks doable and I’m sure it’s been done just not documented anywhere I’ve seen yet. I’m 90% sure my RYLR998’s are SPI according to the data sheet, I was think of taking at stab at this with a RPi zero when I get some time.

@@gianni_schicchi Thank you! I’m new and in way over my head.. but ideally, that’s what I want. A super long range messenger using this technology. Let me know when you figure it out! I’ll buy a couple :)

While transmitting, the module uses up to 140mA at most. During receiving, it is down to 17mA, but you can also use deep sleep where it only uses 10uA. It depends on your application and needs.

did you do everything like the video? It's giving me an error 1

@@pedromendes8595 no sir I just save time of people who is watching video

:D

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.

Yes, sure, it can be used with a lot of sensors.

Macedonia! Thanks!

@@TasteTheCode it is funny you have a similar accent to a French Canadian person speaking english. hahaha. 😁 anyway thank you for your videos!

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!

👍👍👍

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? 👋👋

@@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 :)

@@hofertyp Thank you and thanks for the suggestions! I'll definitely include them if I decide to make another video.

​@@TasteTheCode Znao sam da je Balkan čim sam vidio ovu kuću na četiri vode, to je Turski stil gradnje.

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.

@@TasteTheCode Ok. Thank you again ı will try

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.

@@TasteTheCode Thank you a lot, I was wondering how those drones reach 10km using camera

@@RafaelSales55 sorry, I can't tell as I haven't explored their radios but that might be an interesting point of research. Thanks!

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.

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.

One update, now AT command is returning +ERR=5, when i try to execute AT+SEND command from esp32

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.

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?

@@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! :)

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!

@@TasteTheCode yes, 2.4GHz. :) Thank you so much!

About 45 characters... Why?

That's a good idea. I'll try to do it soon.

@@TasteTheCode thankyou ✨😁

Sure you can. Any LoRa module should be usable in a project. It all depends on your requirements and objective.

It depends on the circumstances but it ranges from 0.3 kbit/s to 50 kbit/s

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.

The app is called "Serial USB Terminal". It worked perfectly every time.

I'm not much of an expert in it but let's see what your problem is?

In the specs, it says: "NUVOTON MCU & Semtech LoRa Engine".

No, not without additional hardware like GPS modules.

@@TasteTheCode not even if we use the send time and use some mathematical formula?

@@pedro96465 yes but then you run into the challenges of syncing time. If you figure it out, let me know.

It is an app called Serial USB Terminal.

How to pass AT commands to Lora from ESP32 UART? I am not able to send Address,Band, network id through program ?

@@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.

@@TasteTheCode Its successfully receive data, it fails to send data i.e. At command through Serial Print not properly sent by ESP32 to Lora

@@MrNams That's weird. Does it have an error? Check the line termination character.

No, LoRa is ment to be used with small sensor data.

Yes, true. This is more for a sensor data.

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.

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.

Meshtastic LoRa on 915mhz @ 100mA has been sucessfully tested up to 250kms.

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?

​@@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

There is not “enter” or 0x0D 0x0A in the end of the AT Command.

@@gigigisi6297 but I have the same code... what I have to do to solve this error?

@@pedromendes8595 Maybe you can try AT+SEND=1,5,HELLO