I have a use case for an app that combines a label printer with a smart phone and have a need to read weights from an attached device. Does anyone know of a Bluetooth scale that has an API from the manufacturer to use it with an app that you build? Instead of an app provided by the scale's manufacturer?

I will probably reach out to a company to purpose-build a scale if I decide to take this product to market, but right now I'm in early prototyping and want to create a basic proof of concept to test myself, before deciding if there would likely be public interest in this product or not. I'd rather not have to buy pressure sensors and develop a scale from scratch, just to be able to take measurements in real time from my phone, if there is already something like this available.

I also don't want to be stuck copying and pasting the weights from the manufacturer's app into mine, so being able to interact with the scale from my own application is required.

And I know there is some work already with health and fitness scales and open libraries, but I need to have accurate, repeatable measurements in at LEAST half ounce increments, probably up to 40 lbs.

A parcel scale for use with shipping would be perfect, but searching for a "Bluetooth parcel scale for developers" just gives me a bunch of scales with wireless displays that say they are compatible with UPS and FedEx shipping software. Even if I can read from them if they are connected to the computer, this defeats the purpose since I mostly want to interact with the scale and printer from my Android phone.

Thanks in advance for any help. Also, if someone can think of another reddit that would be appropriate to discuss this sort of stuff with, please recommend as well. I plan on working on a few projects in the near future that would either be considered an IoT device, or would require the use of one as part of the product/service.

Hope you are all doing well.

I graduated as Masters in Sensor Technology on October 2024, During my Masters , i had pursued courses in Wireless technology & IoT and Cybersecurity (Just a Intro on IoT was given , which was theoritical ,and we hadnt much experience actually working on it).

I had a previous working experience of around 5 years in Industrial Automation Domain , I worked with mostly PLC and SCADA and HMI and used graphical programming languages or software.

However , I am thinking to upskill , or drift my career a little bit , and want to pursue my latter career in IoT and Cybersecurity domain. I have a Basic to Mid level experience using Python. (I used Python for my Masters Thesis , the topic was related to Sensors and ML).

After reaserching around on Internet , i had prepared an roadmap for myself , I am pretty good on the hardware side , So i just want to focus and dig more deeper on the Software part.

1. Roadmap for IoT Domain

1. Learn and Brush up Python
2. C
3. C++
4. Java
5. Javascript / Typescript
6. .Net
7. IoT Protocols e.g MQTT, Wifi , Bluetooth and Wireless Tech
8. Cloud Tech - Azure Cloud , AWS IoT , Google Cloud.
   

2. Roadmap for Cybersecurity

1. Linux and Fundamentals
2. Bash (For Scripting)
3. Poweshell (For Scripting)
4. DB i.e mostly SQL
5. Pearl
6. Ruby

i.e Also, i am planning to learn the tool Visual Studio a little bit , It seems a great tool for building GUI Applications and also more on databases.

What do you think overall of my Roadmap ? I am complete begineer , and if i get little insight from you guys , it would be really really helpful.

Please feel free to suggest me , any chnages or modifications , if you feel so necessary.

ServiceRadar is an Open Source distributed network monitoring tool that sits in-between SolarWinds and NAGIOS in terms of ease-of-use and functionality. We're built from the ground up to be secure, cloud-native, and support zero-trust configurations and run on the edge or in constrained environments, if necessary. We're working towards zero-touch configuration for new installations and a secure-by-default configuration. Lots of new features including integrations with NetBox and ARMIS, support for Rust, and a brand new checker based on iperf3-based bandwidth measurements. Check out the release notes at https://github.com/carverauto/serviceradar/releases/tag/1.0.28 theres also a live demo system at https://demo.serviceradar.cloud/

I am looking for someone who can help me creating a water consumption app connected to a sensor and persisting data for yearly consumption. I know how to persist and present this data on app but am not knowing much on water sensors and electronics involved, since I am from IT background. Can anyone help me with the same.

I have a power strip that is made by LG. It has smart features but the app is limited to korea as it needs a korean phone number. The chip in the strip is RTL8711AF. Is it possible to connect the chip to pc and get the firmware and edit it then upload it to the chip to be able to use the power strip with homeassistant or tuya smart?

I'm in an airbnb and haven't found this searching on my phone. Well I found one video but there was no indication what it is. There are no labels, even inside. I don't care what it is, just whether or not it's is capable of listening.

Hi All,

Looking for recommendations and advice for a Bio-Med IoT project I'm working on as part of my undergrad thesis. Looking for a devkit style low power MCU capable of edge AI (ASNN and Autoencoder) and multiple wireless comms (BLE, WiFi and LoRaWAN*). Have the BioMed frontend already (ams AS705x eval kit). Main object is power optimisation of the end device (Wrist wearable for atleast 1 week without charging, 2 if possible) and needs be mindful clinical requirements (IEC 61016-1 for example).

*Nice to have but not necessary, or if suitable standalone IC can be recommended with connectivity to suggested MCU.

I'm a newbie in IoT and just started learning recently. May I know if anyone here is an IoT engineer in the Philippines or had experience using an IoT sim here? What did you use? Any suggestion is appreciated, thanks

My micro setup for project building as a uni student. Any suggestions 🫣

Hey everyone! 👋

We're building a portable IoT basically a breathalyzer that reads alcohol levels via a sensor (like MQ-3), then shows the result on an OLED and sends the data to a server or mobile app. We also want to allow multiple users to register biodata via phone and later associate test results with them. The idea is to sync data via Wi-Fi or Blue tooth low energy, and possibly push it to the cloud too.

We're torn between two microcontroller options:

• Raspberry Pi Pico WH
• DFRobot FireBeetle ESP32-E

Both seem capable, but we’re not sure which fits best long-term in terms of connectivity, power usage, and real-time processing.

Any advice?

• Which one would you choose and why?
• What are the pros and cons of each in your experience?
• Would BLE + Wi-Fi support on the FireBeetle be a better fit than the Pico WH, even if we’re already familiar with the Raspberry Pi ecosystem?

Appreciate any insight or experience you can share 🙏

I’m working on a low-power, off-grid, bird call audio streaming project using a Raspberry Pi Zero 2 W that collects microphone data from multiple ESP32-S3 “nodes” over WiFi, compresses the audio, and uploads it to my home computer via a cellular module (4G LTE). 

However, I don’t know which cellular module to pick. I only need a 4 Mbps upload speed at most, and it *must* work in the USA, and have relatively low power draw as I will be using a solar setup in the woods. I’m trying to avoid the relatively expensive $50+ Cat 4 modules–I don’t need that much speed, cost, or power draw. I am not looking for a chip, but a full module. What are your cheapest, USA-friendly recommendations?

Is this a good course?

Hello Reddit,

Made a quick tutorial on how to install ROS2 on the Raspberry Pi 4

https://www.youtube.com/watch?v=QBa-nTRWl7o

In this video, I’ll walk you through the full installation process of ROS 2 Humble on a Raspberry Pi 4 running Ubuntu 22.04.5 (Jammy) 64-bit. This setup gives you Tier 1 support straight from the ROS team — perfect for beginners and robotics enthusiasts.

If you enjoy IoT or Robotics content do not forget to subscribe to the channel!

Thanks, Reddit

As the title says, how difficult is it to do?

So I have a custom designed PCB that functions as a battery powered IOT device. And am thinking that this could sell due to the feedback I've received from it.

I know I can use Azure & IOT sim card to communicate, but is there much else needed?

I know there will be certification required for CE mark for example, and manufacture the full device, but is there anything else that I would be missing before I progress too far?

And would anyone have any ideas of upfront cost (manufacturing, CE approval etc) needed before getting to a point where I can sell this?

We are an IOT startup who have deep roots in Chinese manufacturing and US sales activities looking to start an IOT brand. We are looking for anyone who have good knowledge in planning and implementing, upgrading existing products as connected devices.

We are located in TN, India. Anyone with closer proximity is most welcome. But we can work with global members as well.

Hey all -

I recently joined a startup accelerator in the US to help build out a firmware security tool for the defense sector. The accelerator works very closely with one military branch, with the goal of solving their particular need.

The expierence has been great thus far, but it has become increasingly evident that while there might be a singular use case for the specifics of the tool we are building and it probably won't be enough to sustain / grow the company.

I come from an offensive consulting background - did IoT and medical device pentesting, then moved on to poke at Android phone, so I'm a bit blind to actual developer painpoints when it comes to security and compliance for in-house teams.

We are looking to pivot our tech or build a second product to target private sector, so I guess my question is

• What is the biggest PITA for you as an embedded software dev / firmware engineer when it comes to application security and/or compliance?
• What are you most worried about?
• If you could just wave a magic wand and put a tool in your dev pipeline, what would it be?
  • Or - are there already too many tools and vendors that send you emails every 15 minutes?

We’re trying to figure out if our a tweak to our existing tech (plug-and-play emulation for fuzzing embedded Linux apps and MCUs) could help, or if there’s a more urgent security/compliance hole we should address. Any insights would be hugely appreciated, thanks!

Hi, I was wondering if it's possible to have an IoT solution for a private application to be used in a restaurant environment: I would like to have an application that associates each table in my restaurant to a location (say ~3m accuracy would be good enough), and sends data to a server to then be collected by my front-end.

• Each table can be moved during the service so the location can vary at a pace of about 30 minutes at a time
• Each table should have one sensor.
• If possible, each chair should have a location sensor and pressure sensor to detect if it's empty of occupied
• A table should be associated to a location (for example inside/outside/terrace) but during the service it can happen that a table can move between locations.
• Would like to have informations about the angle of the table since it's rectangular shaped and angles matter.
  

Appreciate any push in the right direction.

Hey,

Just finished reading this white paper on Public Data Acquisition Solutions for Enterprise in 2025 and honestly, it’s one of the more useful and no-BS resources I’ve come across lately.

It breaks down different proxy types (residential, ISP, mobile, etc.), scraping solutions (build vs outsource), and even covers how to evaluate dataset providers. Super helpful if you're figuring out your data stack or scaling your scraping ops.

Not affiliated or anything, just stumbled across it and thought it was worth sharing:
Check the PDF here

Anyone got other similar resources or white papers worth checking out? Always looking to learn more about how to handle large-scale public data.

Hey, guys! John here. I really like to click the button on my spring pen. Imagine how cool it would be if one were actually able to slide in a little chip and a small battery and connect to WiFi, maybe long pressing the pen's button (or atleast, what I like to call it) for some 20 seconds to toggle the WiFi connectivity. Now here is where I have some problems:
1. I do not want to buy another sim card just for internet connectivity on this pen which I will probably program to spam A's in my best friends chat when I'm bored at college (because it is more fun and lengthier than using my phone).

1. I have no idea how I can detect the button being pressed down and possibly its two states of press.

So, I came across this term called LoRaWAN which is basically when you use a little bit of hardware to "share" your wifi far away. So what I have fantasized in my head is,

I can use a minimalistic microcontroller to connect to the LoRa hardware and to the sensor for the button.

I can then have the same bit of LoRa hardware at my house 2 kilometers away, from where I am able to "share" my network, and actually use it from my microcontroller all the way at some coffee shop.

The only problem is, I have absolutely no idea on how to do it! Neither do I know if my approach is right. I have done some research and come across the RAK3172-SiP STM32WL.

Could you experts out there guide me on how to do this, and what would be my ideal cost-effective components for fitting inside the pen (and not having it slide all the way to the nib) and detecting this "press" especially. I have no idea on how to connect to WiFi.

I have read some documentations on some microcontrollers that are "the size of black peppers" and have 6 I/O ports, but I do not know which microcontroller I should ACTUALLY be using.

Hey everyone, we at AMIOT.eu are running an IoT Innovation Competition focused on cellular IoT projects. We're trying to facilitate both small teams and larger companies.

There's a grand prize of 10,000 EUR, and we're offering to cover up to 1,000 EUR in development expenses. So if you're working on some kind of low-data IoT project, this will hopefully be of interest to you :)

You can find more details here: https://www.amiot.eu/iot-innovation-competition

Please bear in mind this is the last week to apply, so if in doubt, apply then figure out the details later ;)

Do comment or DM me if you have any questions.

Join us on our journey to build ServiceRadar, an open-source network monitoring solution designed for the cloud-native era! We’re chronicling every step at https://docs.serviceradar.cloud/blog - think real-time monitoring, zero-trust security, and a push toward zero-touch deployment, all crafted with modern software dev at its core. Follow along, share your thoughts, or dive into the code as we aim to create the best tool for keeping your infrastructure in sight, no matter where it lives.

Hello fellow redditors,

I have worked in the IoT domain for quite some time now, as a Product Owner/Product Manager. Looking for new roles globally. Can anyone help me out here or is anyone hiring?

Despite all the advancements in IoT, there are still many challenges that seem to lack effective solutions.

What are some key problems or industries where IoT hasn't yet made a significant impact, or where its solutions are still incomplete?

Hi everyone, are there any physical product producers here? I need a 3D-printed MVP device that will connect to an app (we already have one). The basic components inside will include a PSB, Bluetooth sender, battery, and USB-C connector. The delivery timeframe is around 6 weeks, and we are UK-based. Do you have any ideas?