Staying on top of the emerging trend and technologies behind the "Internet of Things"

Fundamentally speaking it seems IOT is focused on sending data from a device over TCP to something that gathers the data. Yes I know this is a broad brush I’m using but I’m not far off.

When I look for examples I see mainly devices sending data to a local server (eg raspberry pi or such). If they send data to the “cloud” typically they use a service that exists for DIY projects. An example would be Adafruit IO.

I have an account on a server. What I would like to do is send data to “something” on that server that I have created to display and store on my own website. The problem is I don’t see anyone doing this. I can’t find discussions of it. I’m sure it’s out there. I can’t be the only one.

Does none know where I can go to learn? See examples? Is it just too hard for the hobbyist?

Is it possible to have a dimmable battery powered led strip.

I have seen this battery powered led strip - https://amzn.eu/d/8pjgWAP

How would you recommend making this WiFi controllable?

Hi, I have a small iot business, I have completed dozens of installations all working fine but I need to really drill down into JS, so I can upload info. All of the courses I see are either about the transmission side of IoT or if JS they are Web design. Before you ask bout running a company without full JS knowledge, my kit goes on hire for only a few weeks at a time.

How to get USB of Pi Pico working in USB Host mode? Need to connect a USB QR code scanner and send the payload over rest API. Is newest firmware supportive of the activity by default?

Hi guys,

I’m trying to create a publisher using AMQP with an iOS app. The only app I’ve found so far is AMQPClient, but it doesn’t seem to be working for me.

Does anyone have suggestions for alternative apps or tools that work well for AMQP on iOS? Or perhaps some tips on configuring AMQPClient properly?

Any help would be greatly appreciated. Thanks in advance!

I am first year student of IOT branch persuing my b tech from NIT kurukshetra, being new to this subject i needed some guidance on how to start and grow in this field. Being a newbie i know nothing about it and i am feeling lost in life rn due to personal issues, can someone please guide me, where to get resources from and where to start from. You help would be really appreciated, tysm <3

I have multiple nodes with ESP32 with different sensors each and a mobile application for visualization of data. Currently, I know that IoT system relies on a connection to a central cloud platform to exchange data over the Internet. But, I'm tasked to make this system decentralized, in which they brought up about blockchain so basically they wanted to make the system similar to the concept of blockchain. However, I'm thinking that blockchain would be tedious as it is new to me as well.

How do you think this kind of system be "decentralized" or if you think blockchain is a good idea, do you have some references I could look into for this kind of system?

I'm looking to get something like a pendant or a bracelet with a single button, that when pressed would send out a notification or a call to pre programmed contacts. I've seen something like this, but they are only available in some regions and usually come with subscriptions and their own call centers that handle those emergencies.
What I would assume I would need is a button that can be programmed to send out a signal to some base station that then could be programmed to send messages or calls. This device would be for my grandmother, she's alright but I'm being preemptive, she walks her dog daily so the system would need to have some range to it. I'm not sure what type of signal could carry good enough range, maybe like loRa or something like that?
And for base station, what would I need? Something like an arduino or even raspberry pi?
Any suggestions would be nice. I'm not too experienced with stuff like this, maybe some of you have made a system that would work in such a way?

I'm concerned that an RFID-only attendance system could be misused if a student scans multiple RFID cards to mark attendance for absent friends. To address this, I thought of incorporating IR proximity sensors on each table (each table has two seats). Each sensor would be directed at a seat to verify that the number of occupied seats matches the number of scans recorded by the RFID reader. However, I'm unsure if this approach would be robust enough. My goal is to avoid using cameras to minimize sensitive data transmission and enhance the smart table functionality.

What suggestions do you have for improving an RFID-only attendance system?

also, im planning to make this system decentralized, not yet sure how xx

In powering a mini dc pump, im concerned that a 5v relay module is not enough with the other sensors in used. Im opting in using a buck converter if this is okay. Anyways, this is my first time with iot, this is our final project and it would be presented this coming 25. I never started to code yet its because we still need to clarify its function

In my college i have a project for m2m counicasion and i want to find some articles for this project. Can you help me

So next week I got a project expo and bought an induction metal detector from online without checking if it comes with output pins (I need it this way because the project is on sensors so we just need to show the output values on Blynk App, it doesn't matter which sensor we used.) and turns out they don't and only has V+ and V- connection. I asked ChatGPT if there is anything I can do to get the output values where it told me to use an Octocoupler which just isn't working, So is there anything you guys know or think of that I can do or use to get output values from the sensor. All I need is to show the output values on Blynk.

MC is ESP32.

My goal is to have a gear locker that remains locked unless a user either

A: Scans a posted QR code on the users phone, enters their ID information to unlock the locker.

B: User is given a NFC card that has their ID information mapped to it, so they can tap the lock to unlock the cabinet.

After one of these actions have been completed, it needs to trigger an action to send the user information to a google sheet, to allow the Admin to see at a glance who has opened the locker.

Is there an IoT NFC lock I could install onto a locker/cabinet that would be able to fit these requirements?

Working on a Machine Learning project for college that needs real-time raw sensor data from wearable devices. On a tight budget and currently using an old Fitbit Versa (1) and Mi Band 3—but getting to the raw data isn’t easy with these models.

Hoping to find recommendations for affordable smartwatches or fitness bands that make it possible to access or sniff Bluetooth sensor data directly. Anything that can provide access to movement, heart rate, or similar data would be ideal. Open to any suggestions or insights on devices that might work for this kind of project.

If anyone’s cracked this, your help would be huge. Thanks in advance!

I am looking for recommendations for wireless vibration sensor that are cost effective. I found various manufacturers (ncd.io, ifm, advantech etc) but the price point is in range $250 - $350. Are there any cheaper alternatives? Would it be better to build something with accelerometer + ESP32?

Hi, I’m a beginner and wanted to see if I could get some help on my IoT project!

I’m trying to create a smart wardrobe system where an outfit recommedation is provided everyday, based on weather, calendar data. I’m planning for the actuation to be a light system, where the selected garment’s hanger lights up so that I can easily reach for it. I want to make it so that even if the hangers are all mixed up, they each light up individually, no matter the location.

How do you think I can go about the lighting part? What materials would be needed for this?

I've integrated various IoT devices in my workspace—like lights, fans, AC, and a vacuum robot—all controlled via voice commands with an Amazon Echo. In my new room, I’ve set up an Echo Dot 5th Gen with an ultrasonic motion detector that’s supposed to sense when people are present. However, I still wake up to find the fan running all night, which is wasteful.

I have a PC with a 16GB VRAM GPU running Ollama, using OpenLLM for instant communication on a secondary monitor. I'm exploring frameworks to enhance control over my IoT devices. I'm considering platforms like n8n, memGPT, AgentOps, and Agent Studio.

What robust frameworks do you recommend for seamless IoT device management and oversight? Also, any recommendations for lightweight local vision LLMs to analyze my camera feed and sensor suggestions? Looking forward to your thoughts!

This will be the equivalent of a daily stand up meeting but for people who are still learning the technology. I think this is something that could really help me.

I recently started using MagSafe and I love it.

Today, my battery drained out while I was out. I somehow managed to get a lightening cable. It took it more than an hour and it still did not power on.

Came back, charging perfectly via magsafe. ¯\_(ツ)_/¯

Had a SIM card with Hologram for a few years ... data was supposed to be capped at 7MB. i had a data stream run up over that and it wasn't cut off. now I get a bill for $76. tried working with them to help them keep me as a customer (altho' I don't know why, they always kinda sucked) but they just wanted my $. Stay away from Holo-scam, seriously.

Are there virtual IoT systems through which conditional data packets can be transmitted and interoperated?
Ideally, so that I can pass a packet, see how it looks, apply protection* and show what has changed.

Context: I was told by my university to do research on the topic: data transmission protection in IoT system. To show how data packets can be protected so that they cannot be intercepted/altered by attackers.

The problem is that I don't have, at home, any IoT systems.

I would be most grateful if you can help with this question.

By protection* I mean the ability to apply/use/implement SSL/TLS, AES, IDS/IPS, possibly something else.

We are working on the design for a new device that needs LTE Cat M1 connectivity. So, I have been learning a lot about how SIMs work, and now I have several questions that I hope someone with a lot of experience in this area can help with. I will number each of them, to try to make answering my convenient. First, some context (please correct if any of it is incorrect).

There are two levels of providers involved:

• MNOs - Mobile Network Operators. We won't work directly with these; the MVNOs do on our behalf. In the US: AT&T, T-Mobile, Verizon
• IoT MVNOs, aka SIM providers. These are companies that basically aggregate connections to the networks of MNOs, allowing us to be able to connect to the one that works best wherever the device is located. These are the companies we'll work directly with. There are many of these (quite the competitive landscape), e.g.: Hologram, Kore, Simbase, Telnyx, Things Mobile, SIMON IoT by Kore, 1NCE, Wireless Logic, Simetry, Simplex Wireless (u/FlyingFinn9001), Velocity IoT, etc.

We want to maintain the ability to be able to switch between both MNOs, so that we have a reliable connection wherever we are, and MVNOs, in case we prefer the pricing, API, dashboard, etc. of one over another. And, we want to avoid producing hardware that can't support these swaps.

Below, I am talking only about eUICC-enabled SIM cards and MFF2 eSIM modules. When I use the term "eSIM", I am referring to MFF2 eSIM modules.

For our application, we would much prefer to use eSIMs over SIM cards.

1. Is swapping between MVNOs with an eSIM possible?

2. Is it commonly done?

It seems that every MVNO wants to sell you their own eSIM, and they say that you have to use theirs to use their network. A conversation with an account manager at 1NCE went like this:
"You must use our esims to use our connectivity, however, our sims come with euicc capabilities (freedom to switch to another carrier) so you’re not locked in with 1NCE."
"To be clear, we wouldn't be able to bring devices with already embedded M2FF eSIM modules (with eUICC) over to use with 1NCE?"
"Generally speaking, no, unless the quantities were very high."

Some companies, like 1NCE advertise "Freedom to Switch." (https://1nce.com/en-us/1nce-connect/features/freedom-to-switch-euicc). They say: "What happens when I want to switch [MVNOs]? Contact our customer service to discuss the details on the switching. Due to the technical nature of eUICC, an integration project is required between 1NCE and the other operator and / or RSP provider."

I didn't understand why this is the case. And then I watch this video - https://www.youtube.com/watch?v=vms\_beSPhfY&t=1959s. At the 17:50 mark, I think he hits the nail on the head and gets at the problem that I am running into: we may be able to switch operators, but are still locked to an SM-SR provider. He identifies three eSIM/eUICC models: M2M, Consumer, and IoT.

This article said: "as we can easily find Consumer eSIM in day-to-day life, typically with high-end phones, it’s easy to assume the technology works similarly for IoT devices. It does not. This is a huge pitfall if you are looking to adopt eSIM for your business." I initially assumed we'd be able to easily swap between both the MNOs and MVNOs on the fly.

3. Is the M2M model what the majority of MVNOs use?

4. Do any of the many MVNOs out there support the Consumer or IoT models? For IoT model, the speaker in the video referenced GSMA SPG.31 (April 2022) and SPG.32 (May 2023)

5. Do many IoT cellular modems support the Consumer or IoT models? The system integration manual for the modem we plan to use (SARA-R52) gives guidelines for connecting "a Surface-Mounted SIM chip (M2M UICC form factor)" (emphasis mine).

Assuming the answer to questions 1, 4, and/or 5 is "no,", it seems that if we are stubborn about not producing hardware that can't switch MVNOs, having an M2FF eSIM is actually worse than having a SIM card that can be swapped out.

6. Do you agree with the assessment I just made?

The datasheet for STMicroelectronics's ST4SIM-200M M says "bootstrap connectivity profile provided by a trusted partner." The ST4SI2M0020TPIFW module is the MFF2 variant.

7. Any guesses at who that provider is?

8. Are there any MVNOs out there that would accept us bringing devices with the ST4SI2M0020TPIFW module already on board to their network and work with us to provision them, instead of having to use their eSIM and be locked to their network?

9. If the answer to that last question is "no," what is the point of this module being on the market? It says it uses the M2M eUICC model.

Other questions:

1NCE also says "1NCE IoT SIM Cards allow the user to automatically switch between radio standards. Thanks to the multimode feature, it is guaranteed that the best available network is used for data transmission."

10. How is that typically done? Does our software need to loop through the available network profiles, checking the connection for each one as it goes?

11. When Remote SIM Provisioning (RSP) is happening, does the modem's software handle everything, or do we need to right software to do that?

12. When it comes to the bootstrap profile, what happens if we power on the device for programming, checkout, etc. at our facility, and it downloads an operational profile, and then we deploy it in the field where the network corresponding with that profile isn't available? Will the eUICC fall back to the bootstrap profile?

Hi all,
I'm pretty new to using an ESP32, and I have connected a humidity sensor (DHT22) to collect sensor readings which I plan to upload to cloud storage. I am trying to flash the ESP32 so that it can run connected to any power source and then be able to continuously upload sensor readings (at certain intervals throughout the day) to a cloud storage via the wifi module? Is this the right approach? Does anyone have any tips or know any videos to guide me through the process?

Also if anyone have any recommendations for free cloud storage that can store time series data, would be greatly appreciated :)
Thanks!

So i have decided to make a rover project now i am confused with what shall i use:

Project is basically a rover having tank upto 0.5kg having pesticide and a pump and nozzle to spray it. Prolly some esp cam module and ultrasonic sensor if required.

Equipments - arduino,esp32,motor(i am confused abt),water tank i ll say upto 12v i can consider but rn i have 5v dc pump.

Main issue is which one should i use?

TT motor 100rpm or Dc motor 100rpm??

got recommended tt motor as it is flexible and suitable for load

l293d motor driver or l298n motor driver??

got suggested l298n as its power is high the voltage and all.

Hi,
We use SIM8262E as well as SIM7600 modules for network probing.

Without changing anything on our systems or software for weeks, we lost 12 of the SIM8262E at one day.
They all turned to the Qualcomm QDL mode, which is the Firmware Update mode:
USB Bus 002 Device 014: ID 05c6:9008 Qualcomm, Inc. Gobi Wireless Modem (QDL mode)

After updating the modules to factory images, they now constantly fall back into a BULK mode
USB Bus 002 Device 002: ID 05c6:900e Qualcomm, Inc. QUSB_BULK_SN:1EA356643

This raises several questions:

Are the modules able to last more than 18 months? The died modules are all ordered in Spring 23 at Waveshare. They are all doing different tests (in terms of number of attaches, data connections, voice calls or even resets).
To me it feels like some time bombed design, having a kind of best before date, after which you may want to purchase new ones.
Has anybody have similar problems on Friday the 4th of October?

Tech questions:
What brought the modules in the QDL mode in the first place? (Installing the FW was the only option)
What brings the modules now into the BULK mode? (rebooting the module is the only option and lasts for some minutes before returning into BULK)

As they are connected to Linux systems, we need to update them using a Linux tool chain.
If I would update them using the Windows tools, it always updates the FW and appends a patch file. How would I append the patch file to the update procedure in Linux?
Additionally, in Windows I am advised to backup/restore xqcn files. I don't know how to do this in Linux.
Any advise is appreciated.

Would one recommend to change the modules for other brands? What would be an option having similar functionality?

Thanks for any advise.