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Posts tagged as “IoT”

Environmental IoT & Precision Agriculture


My thesis project is called "Storage and Analysis of data coming from an IoT platform". I need however to find a use case for it.

As I am pretty intetested in environmental issues, I want to do something about that. One of the things that I considered is precision agriculture but it's not the only option.

Does anyone have any project ideas, resoueces to research on this topics, sensors I could use, use cases I could handle in these domains or anything that could help me here?

Thanks! 😁

submitted by /u/mihai_zanfir
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Problems finding DevEUI of LoRa device

I am currently working on a project at university for which we are using a TTGO T-Beam V1.1 as microcontroller board with integrated LoRa. To connect to the LoRa access point at our university, I neet to tell the responsible person the DevEUI of the board so that he can configure the application on the server corrently.Unfortunately, I don't know how to get the DevEUI of my board. I already looked on the internet, but did not find any helpful information. Can somebody tell me how I can find out which DevEUI my board has?
Thanks in advance!

submitted by /u/jhamp99
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So Much Buzz About Ultra-Wideband (UWB)

Quick question for whoever can respond! When you hear people talking about ultra-wideband / UWB, what do you think of? I'm finding lots of materials about Verizon's 5G UWB (which is not at all what I think of when I'm talking about UWB), but I'm curious what other people's first thoughts are as UWB gets more name recognition.

submitted by /u/staylortay
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Need a project idea

I am an electrical and electronics engineering final year student in need for a good idea for my major project during my final semester. We are a group of three people looking for some project ideas which can be done bya group of three. Any idea is fin...

Hackable bluetooth enabled armband


does somebody know about a armband (or smart watch) which matches the following criteria:

- Bluetooth

- openly accessible api (without a cloud if it's possible)

- pretty small, not a fat *** smartwatch

- Pulse detection is a bonus

I want to track a user in a room. My plan is to have 4 devices in the corner of the room and then calculate the distance from each to the armband.

submitted by /u/witty_salmon
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oStore : Simple Object Storage for low resource platforms

A while ago I posted on the C, IoT, and Embedded subreddits - as I was trying to find a way to store variable configuration information on a small / embedded device, with limited storage and RAM. You folks were awesome in suggesting possible solutions. A really popular solution was either keeping all the configuration in RAM and writing it to persistent storage, or alternatively using something like SQLite. But I kinda had an itch, there is a set of devices that fall somewhere in between, SQLite is too big, and keeping everything in RAM isn't possible. Is there something I could do that would sit in the middle?

Like any software developer, I kinda had "the itch", just to see if I could write something to do just that. The requirements were basically a simple object store, where the objects are strings or plain old C objects. So I had a go. The result is oStore, a very simple object storage solution. It comes with a command line tool to allow you to create and inspect oStore files, and an API / library which can be used in projects.

I've tried to make sure that the memory usage is small as possible, that all disk / persistent file system stores a live copy of the data.

Giving back is fun Github Link Here

I wanted to share this with you folks, it feels good to give something back, and I really appreciate all the feedback you've given me so far. Now, the oStore project is a good proof of concept, it needs some work to make it a bit more robust. I need to write some "recovery" code to restore a broken or corrupt store, and a small change to support commit's, where an object can be changed, and then "committed" to disk, both of these efforts would make the store more reliable in low power conditions.

Worth while continuing ?

As much as I love developing for the sake of it, I'm wondering if I should continue investing time on this. It has been fun, and I've some other ideas I'd like to work on too. So I'm hoping for a bit of feedback, let me know what you think? - Useful? I'm really in two minds - It has been fun to play with, I've got an itch, that says I should "finish" it, and add the extra items I'm thinking about, including a more easy to use API, but at the same time I'm also happy to park the idea ?

const TOStoreObjcID ID = 42; const char* STRING_TO_SAVE = "This was fun! Shall I park the idea? or clean up with API?"; uint32_t size = strlen(STRING_TO_SAVE) + 1; const uint32_t offsetWithinObject = 0; int error = ostore_write(store, ID, offsetWithinObject, STRING_TO_SAVE, size); 

submitted by /u/mc_woods
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MQTT Bridge certificate

Hi folks, I have created a private & public certificate pair [1], and i know that the private key goes to the MQTT bridge and public should go to the MQTT server(GCP IoT Core). i am trying to configure the MQTT bridge through its windows sof...

Cell networks for remote IOT?


So I am trying to figure out how I can use the cell network for my IOT project.

I am starting a new project which will involve installing maybe 10 sensors over a 2500 acre property. The data needs to be fed back to the Azure Cloud so my web app can display it as it comes in.

Luckily, this site has great cell access and I can get web access over most of the property from my iPhone on verizon.

My question is really about cost effectiveness. If I need to add 10 devices to a monthly plan it'll make the project infeasible. Since the data is very small, and not time sensitive, it is ok if the data slowly trickles in over 3G or less speeds.

Are there any providers that let you bring many devices but charge for data transfer? The flat $10/line on the major providers will **** me here.

I thought about installing some sort of transmission tech to wirelessly send all the data back to a hub and only have 1 line, but the hardware is costly, and the programming becomes more complicated.

Anyone have experience here or good ideas?

submitted by /u/caedin8
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