Could a LoRaWAN sensor connect to a LoRa gateway? I am confused about the protocols and how they would communciate with each other.
I understand LoRa is the physical communication layer and LoRaWAN is the network layer. I am concerned about the devices connected and structure of messages received.
All help is appreciated!
Devices in question:
https://www.iot.daviteq.com/wireless-sensors/lorawan-gas-detecting-sensor
And
I have an arduino connected to arduino cloud at my house and an arduino at my water pump 700m away.
What is the best way/ library to implement bidirectional communication as both have on/off switches and cloud also does on/off. Signal isn’t always perfect so needs to be robust. Thank you!
We recently worked on the RF design of a compact LoRa/GNSS Nomad Terminal handheld device, which is based on LoRa, designed to communicate/ navigate, and deploy anywhere. The antenna turned out to be one of the more challenging parts.
For a small handheld, antenna performance is affected by much more than the antenna itself. The PCB, ground plane, battery, display, enclosure, and even the way the device is held can all influence the final RF performance.
During the project, we evaluated several antenna configurations:
Ceramic Antenna → FPC Antenna + Coaxial Cable → FPC Antenna + Pogo Pin
The final FPC antenna configuration was validated with both RF measurements and outdoor testing, achieving S11 of -11.13 dB @ 868 MHz, -12.82 dB @ 915 MHz, and a 3 km LoRa link in our field test.
1. Ceramic Antenna
The initial design used a ceramic antenna for its compact size and simple integration. However, its placement was relatively constrained, limiting our ability to optimize the surrounding RF environment.
2. FPC + Coaxial Cable
We then tested an FPC antenna with a coaxial connection. This gave us more freedom to position the antenna away from the PCB, battery, and display, but introduced additional cabling and mechanical complexity.
3. FPC + Pogo Pin
The final approach uses an FPC antenna connected through pogo pins. It provides flexible antenna placement while keeping the RF connection and mechanical structure compact.
The main takeaway from the project was that antenna performance in a compact LoRa device is a system-level problem. Antenna selection, placement, PCB layout, and mechanical design all need to be considered together.
The main takeaway from the project was that antenna performance in a compact LoRa device is a system-level problem. Antenna selection, placement, PCB layout, and mechanical design all need to be considered together. The complete
What’s the biggest antenna design challenge you’ve encountered when working with compact LoRa or Sub-GHz devices? Share your experience togehther！
Hi everyone! I'm currently working on a LoRa-based communication project and I'm planning to evaluate the communication performance of my nodes.
I want to test different Spreading Factors, specifically SF7, SF9, and SF12, and measure those metrics.
My questions are:
Hello! I've been enamored by LoRa and Cyberdecks for awhile and have always been one for recycling older technology! I've been facinated my things like Reticulum and have been to areas where there are no cell phones so I fully see the use in needing ways to communicate.
I have a LG VX9200 ENV3 more specifically the canadian version CX9200, its a CDMA QWERTY phone that I desperately want to make useful again! this thing has GPS built into it as well as the nicest typing system in a small form factor! does anyone here have experience with things like reticulum and Meshcore and modding older Cell phones to make them into nodes/communicators?
here are some specs for the phone
https://lpcwiki.miraheze.org/wiki/LG_VX9200
I do not have the technical knowledge to do much more then follow instructions to install things and disassemble,clean,reassemble to fix things, but I really really want to try! I wholeheartedly believe that this 15 year old cell phone could be a cyberdeck or a fabulous LoRa Node and communicator with some tweaks! if someone here would be so kind as to look into things and help me find the limits of what's possible? (and some advice on how to break some limits)
Hi all, I'm trying to build some sleeve dipole antennas for LoRa. I have nanovna and have calibrated it with a rg58 coaxial cable (which I'm also using for their antennas). I have measured and I think I'm using the correct dimensions for the sleeve (79mm length) and conductor (started with 86mm and kept shortening it to hit the sweet spot of 868mhz). The issue is that I'm not getting the expected results. I get different reading on nanovna when i hold it in the air, leave it on the table, or pinch the sleeve. Pinching the sleeve seems like it's showing the correct reading, but I just can't seem to make it work otherwise. I know I'm doing something wrong but I don't know what. Please help.
I have been working with Seed Studio Long Rang 868MHz LoRa module recently and I have been facing this problem where the module suddenly stops working after sometime. I was running their official example code "rf95_client" and "rf95_server" these work fine for 5- 10 minutes and then suddenly stop working and the internal microcontroller makes my life very difficult. I have powered the LoRa with an external 3.3V power supply and YES I have connected the common ground and using ESP32 - C6, every time I reset the ESP the LoRa just refuses to work again I have to manually cut the power to the LoRa module and power it back on then again restart the ESP. Even after all this the LoRa works for 5 -10 minutes and then goes numb.
If any one has faced a similar issue with this module please share how you guys tackled this situation.
using LoRa in UART mode.
I'm looking at setting up my own Reticulum node at my home, and following this guide.
All the hardware that's recommended are battery driven devices, and I'd prefer to use something that's 5v or otherwise designed for permanent installation vs portable.
I was looking at this T-Connect Pro device as it supports multiple connections and is hardwired to AC, but wondering a couple things:
So me and two other friends bought some Muziworks R1 Neos last year after hearing about how useful they can be for areas with no signal. Three of us had these R1s and another three of us had T1000 cards (us with R1s also purchased the Muziworks extended aerials too for hopes of better range). I was a little sceptical after doing some reading since November last year due to range and how hindered your broadcasts can become due to buildings and wooded areas. I say wooded areas because Houghton Festival has many stages in dense wooded areas and another two stages that are quite literally dug into the ground. The festival lasted 4 days and with nearly 15 of us on a site with zero cell signal (and after consistently losing people last year) we thought this has to be a worth punt.
They were insanely good. Zero issues all weekend in tracking people down. We set up a private channel, allowed smart positioning via the meshtastic app and were consistently able to message people who were back in camp while we were 2-3km away at the other end of the festival. Either in the woods or in a pit in the ground we had no issues whatsoever.
This is more of an appreciation to those on this sub who helped me set things up and generally helped me understand how these things work.
If anyone is on the fence about buying this tech for this kind of use case, do it. Its impeccable and a purchase well worth making.
Just wanted to share my recently finished custom Meshtastic node. My main goal was to build a highly portable, screenless "stealth" client node that I can just toss in my bag or clip to my gear and completely forget about charging.
Here is the hardware breakdown:
-nRF52840 Pro Micro (Amazing power efficiency)
-RA-02 module (433 MHz)
-500mAh LiPo battery + 6x6cm Solar Panel (wired with a Schottky diode to prevent reverse current).
**Case:**Custom enclosure I modeled and printed in PETG on my Bambu Lab A1 mini.
Completely screenless to save power, just a single user button to wake up Bluetooth or send a NodeInfo/canned message.
With the nRF chip's efficiency and the solar panel topping it off during the day, the battery life is practically infinite.
I did a quick urban test (balcony to balcony) and managed to get around 500 meters of solid connection through dense concrete buildings and a very noisy 433MHz environment. Really looking forward to taking this out for a proper Line of Sight test to see if I can hit that 1-2 km mark.
Let me know what you guys think.