IoT project links 2019

Internet is full of intetesting IoT projects built using Arduino, Raspberry Pi, ESP8266, ESP32, and many other hardware platforms. I will collect links to intetesting IoT projects to comments.

Feel free to post your best IoT project links to comments…


  1. Tomi Engdahl says:

    IOT Home Automation using Blynk App…. Full detail and code click the link below

  2. Tomi Engdahl says:

    YouTuber Ahmad Logs shows how to send data from one NodeMCU to another using the Arduino Cloud’s device-to-device communication feature.

    Wait… what’s that, you ask? Read more about it:

  3. Tomi Engdahl says:

    ESP32 + Arduino IOT Cloud + DHT11 great combination:

  4. Tomi Engdahl says:

    With three outputs and optional support for motion sensors, temperature sensors, and relays, this shield is a miniature marvel.

    Ser Ko’s Compact ESP-01 WLED Shield Packs in the Feature for RGB LED Control
    With three outputs and optional support for motion sensors, temperature sensors, and relays, this shield is a miniature marvel.

  5. Tomi Engdahl says:

    Plotsensor’s cuplTag Sends Environmental Sensor Readings via NFC — By Encoding Them in a Lengthy URL
    Fully open source, this seven-year-plus battery-powered environmental sensor has a neat way to get its readings into your hands.

  6. Tomi Engdahl says:

    ESP8266 as Window Sensor with years of battery life

    0:00 Intro
    1:07 Requirements
    1:27 The idea
    3:06 ESP8266 basics
    3:57 Simulation in CircuitJS
    6:32 Circuit design in KiCAD
    9:04 SMD-Components
    9:58 PCB-Design in KiCAD
    11:34 Assembly and SMD-soldering
    13:07 Programming and software
    13:39 Test run and current consumption
    14:59 Housing and installation
    16:38 Improvement ideas

  7. Tomi Engdahl says:

    Wifi MQTT Data Logging via an esp8266 for the Ikea VINDRIKTNING PM2.5 air quality sensor

  8. Tomi Engdahl says:

    a while ago I posted about a RGB controller I’m working on with a friend. We even ended up making 2 Versions of it. Now we have finished the design and started the documentation and are also in the process of opening an Aliexpress shop in order to make it available.
    You can find additional information on Github.
    We have added some additional GPIOs, restable Fuses, changed from ESP8266 to an ESP32 etc as suggested.
    Hope you like it

  9. Tomi Engdahl says:

    KuhnSmart’s USP Is an ESP8266-Based IoT USB Pass-Through Plug for Your Smart Home
    Designed for Home Assistant, though also compatible with other ESP8266-capable IoT platforms, the UPS is a compact USB smart plug.

  10. Tomi Engdahl says:

    Alexa Home Automation System Using Arduino IoT & ESP8266

  11. Tomi Engdahl says:

    Automated Blinds Can Be A Cheap And Easy Build

    Blinds are great for blocking out the sun, but having to get up to open and close them grows tiresome in this computationally-advanced age. [The Hook Up] decided to automate his home blinds instead, hooking them up to the Internet of Things with some common off-the-shelf parts.

    The basic idea was to use stepper motors to turn the tilt rod which opens and closes the blinds. An early attempt to open blinds with unipolar stepper motors proved unsuccessful, when the weak motors weren’t capable of fully closing the blinds when running on 5 volts. Not wanting to throw out the hardware on hand, the motors were instead converted to bipolar operation. They were then hooked up to DRV8825 driver boards and run at 12 volts to provide more torque.

    With the electromechanical side of things sorted out, it was simple to hook up the motor drivers to a NodeMCU, based on the ESP8266. The IoT-ready device makes it easy to control the motors remotely via the web.

    Motorize and Automate your Blinds for $10! (WiFi)

  12. Tomi Engdahl says:

    Every Apartment needs this Upgrade! (WhatsApp/Telegram Notifications)

    In this project I will be solving a problem that I had for a while. Since I love listening to music I always miss the doorbell. That is a big problem for me because there is always a postman at the door trying to deliver the components for the next project. So in this video I will show you how to add an ESP8266 to an intercom so that it can send WhatsApp/Telegram notifications to a phone. This way I and maybe you will never miss the doorbell again ;-) Let’s get started!

  13. Tomi Engdahl says:

    Wearable IoT Temperature Monitor
    This body temperature-sensing armband sends data to Adafruit IO and emails you if out of proper range.

    What is your body temperature right now? What about when you were sleeping last night? While instantaneous stats are easy enough to obtain, if you’d like to graph and track them over time then the Wearable Continuous Temperature Monitor with Adafruit IO may be just the device for you.

  14. Tomi Engdahl says:

    By using a Shelly 1 relay and the Arduino IoT Remote mobile app, Alessandro Ranellucci can now open his door from his smartphone.

    How to open a door from your smartphone © CC BY

    In this project you’ll learn how to use a Shelly relay and the Arduino IoT Remote mobile app to open a door from a smartphone

    I have a door with electric lock that I wanted to open also when I don’t have the keys with me, or when I want to let someone in but I’m not there.

    The best candidate for the project was a Shelly 1 relay, because:

    It’s inexpensive and easily available on Amazon
    It’s small and comes with its little plastic enclosure (so it can be fitted in an existing electric box)
    It can be powered at 110-240V AC or 12-60V DC without the need of any additional power supply
    It provides a dry contact (so it can drive my 24V electric lock directly)
    It’s super easy to program with Arduino

    A few words about security
    When it comes to opening a real-world door, we all should be a bit paranoid. The Arduino IoT Remote app requires authentication, and you can configure your Arduino account to require two-step authentication for additional security so this is already a good start. However, I wanted to do something more by implementing a simple One-Time Password (OTP) mechanism like the one you use to access your bank account. I do trust Arduino Cloud, but with this solution even if someone can somehow step into the communication channel between my phone and the device, they won’t be able to open the door because they’d need an OTP to be generated by the Google Authenticator app configured on my phone.

  15. Tomi Engdahl says:

    Plumbing Transformed Into Analog Inputs
    Alastair Aitchison used an LED and LDR setup to sense plumbing valve positions.

    Alastair Aitchison is an escape room designer. As such, he creates interactive puzzles that participants can solve to progress to the next stage of their quest. The challenge is that these puzzles need a rugged input, as they may take some abuse, and dealing with broken tech isn’t fun for anyone.

  16. Tomi Engdahl says:

    “I love checking on mousetraps,” said no one ever
    Get an SMS alert when there’s a mouse in your live trap as we build a smarter mousetrap for the Internet of Things.

  17. Tomi Engdahl says:

    Arduino based WiFi mobile robotic arm with on-board camera
    This mobile robot with a 4 DOF robotic arm and camera can be controlled remotely from a host PC without the need to be in line of sight.

  18. Tomi Engdahl says:

    Simple weather station (LCD + MQTT)
    Weather station w/ Raspberry Pi and BMP280 sensor

  19. Tomi Engdahl says:

    Geiger counter
    Radiation measurement device w/ Raspberry Pi Pico and STS-5 tube

  20. Tomi Engdahl says:

    Remotely controlled plant watering
    Plant irrigation system w/ Raspberry Pi and Smartphone

  21. Tomi Engdahl says:

    Local server collection of IoT system with some additional futures.

  22. Tomi Engdahl says:

    Design information for the project Bluetooth (Hc-05/Hc-06) Home automation system.

    All the relevant materials can be found here,

    You can easily download the mobile application on playstore via this link,

    Just as Magnus Emenuga have assembled this project using the design information,you can easily use the comments attached to the Arduino code and the schematic diagram to make your own assembly and understand further the internal logic of operations.

    Like always, feel free to reach out, if you need further assistance on this build, or other projects we have as open source on our YouTube channel here,

    #design #opensource #homeautomation #arduinoproject #embeddedsystems

  23. Tomi Engdahl says:

    ESP 360 Remote Connects IR and 433 MHz Appliances to Home Assistant
    ESPHome support for light, temperature, and humidity sensors.


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