IoT, the Internet of Things, is making our home lives more productive, ergonomic, and allowing us to manage time more efficiently. Our houses are now being turned into smart homes, creating more savings on energy, water, and gas by monitoring our usage and habits. Household white goods now have a mind of their own.
Today we’ll introduce plenty of amazing IoT projects. Let’s go check them together!
When we talk about IoT, it could be natural to mention ESP32. Rui Santos shows the way to build an IoT shield PCB for the ESP32 and a web server dashboard to control it. The shield is equipped with a BME280 sensor (temperature, humidity and pressure), an LDR (light dependent resistor), a PIR motion sensor, a status LED, a pushbutton and a terminal socket to connect a relay module or any other output.
In this video, you will see How to make an “IoT Based Low-cost ECG & Heart monitoring system with esp32 and Ubidots which costs less than $15”
In one of VeeruSubbuAmi’s previous videos, he had gone through how he can make a low-cost ECG monitoring system with Arduino Board. but that project is purely based on offline. You can monitor the ECG signal only when you are present at that system.
So, considering the current scenario, he thought it would be a better solution if he can connect that system with Intenet and make ECG & Heart monitoring possible remotely.
The AD8232 is an integrated signal conditioning block for ECG and other biopotential measurement applications. It is designed to extract, amplify, and filter small biopotential signals in the presence of noisy conditions, such as those created by motion or remote electrode placement. This design allows for an ultralow-power analog-to-digital converter (ADC) or an embedded microcontroller to acquire the output signal easily.
So in this project, they will interface AD8232 ECG Sensor with ESP32 Module and observe the ECG signal on Ubidots platform.
Mert built a DIY Simple PIR Motion Home Security Notification System. If the PIR motion sensor detects any motion it sends a notification to your mobile phone.
In this project you will see how to make a low cost DIY Simple PIR Motion Home Security Notification System! If the PIR motion sensor detects any motion it sends a notification to your mobile phone.
ESP8266 ESP-01 WiFi module, PIR motion sensor and 3.3V voltage regulator were used in this project.
You can also see in this project how to build a 3.3V power station, how to upload code to the ESP-01 using the FTDI, how to programming the ESP-01 using the Arduino IDE, and create free WiFi scenarios with IFTTT.
“At least two sensors can be used in this project. In this project, PIR sensor (The PIR Motion sensor module is an automatic control module based on infrared technology) and IR sensor (IR Infrared Obstacle Avoidance Sensor Module has a pair of infrared transmitting and receiving tubes). The DFPlayer Mini module was used to play audio files. (The DFPlayer Mini MP3 Player For Arduino is a small and low price MP3 module with an simplified output directly to the speaker) We used one 9V battery for power consumption and one mini speaker for audio files. We chose DIP components for the PCB, so it became an easily solderable board. Of course, this project includes one Atmega328P microcontroller and the minimum required component.”
Debashis’s giant Alexa Boombox is a necessary product for a smart house. Alexa Voice Service Integration is a new feature of AWS IoT Core that enables device makers to make any connected device an Alexa Built-in device. With the reduction in the engineering bill of materials cost, device makers can now cost-effectively build new categories of differentiated voice-enabled products such as light switches, thermostats, small appliances, and more. This allows end-consumers to talk directly to Alexa in new parts of their home, office, or hotel rooms for a truly ambient experience. A standard Amazon Alexa is a very popular smart speaker, its sound quality is pretty good but not enough to shake a whole house. So in this video, Debashis made his own Alexa enabled smart speaker which is not only 6 times powerful but also costs only one-third of the original amazon echo.
https://www.pcbway.com/project/shareproject/Homemade_Big_Alexa___DD_ElectroTech.html
For energy saving, Bluino Electronics made a Blynk Switch IoT 4Ch only use Smartphone Android with Blynk app & ESP8266 Loader app, which can be easily got on Google Playstore. By clicking the option on the phone, we can control lights, fans, etc remotely.
In this comprehensive tutorial, Bluino Electronics is trying to help people make their own cheap DIY Sonoff 4CH smart switch. From hardware to 3D printing, the final assembly, he elaborated the whole process step by step.
https://www.instructables.com/Make-a-Cheapest-DIY-Sonoff-4CH/
Anak built a smart garden system. Using this system, it becomes possible to monitor soil moisture, temperature, and air humidity, just by chatting on telegram.
Besides, we can also control the flame of the water pump to water the plants and control the lights of the plants when we go to the garden at night.
Francesco Berghi’s d-diot multi-purpose IoT PCB can also test the soil moisture. This small PCB is born to be a general-purpose solution for building any kind of compact wireless battery-powered sensor or actuator, so it can also be used as a door window sensor. This project is definitely worth a try in science class.
https://www.pcbway.com/project/shareproject/d_diot_multi_purpose_IoT_pcb.html
The Hook Up’s Auto garage door can be a great choice for beginners to have a try. He made a detailed enough video to explain the whole method of making automatic garage door.
In this video Matt Kaczynski will show you how he control his smart home with his Apple iPhone Xs Max.
For digiblurDIY’s smart house series, it’s still on run. He has made 7 videos to show process step by step. This series is a constructive presentation, produced for educational using.
https://www.youtube.com/c/digiblurDIY/videos
Different small gadgets can play a big role in different aspects of our daily life. For example, Fahad’s IoT based Water Quality Monitoring system works really well and can help us moniter the qulity of tap water. Water's electrical conductivity depends on the concentration of ions. Salinity and total dissolved solids are used to calculate the EC of water, which helps to indicate the water’s purity. The principle of this project is like that the purer the water is, the lower the conductivity is. It can efficiently guarantee the quality of our drinking water to use this system together with a tap water filter.
Project Theia is an easily replicable, low-connectivity IoT platform that allows developing countries to monitor COVID-19 viral blooms at a national level. They believe that Theia is one of the most effective solutions to provide a developing country with limited healthcare services, under their unreliable telecommunication network, to triage their COVID-19 outbreaks, to send doctors and nurses where they are most needed.
https://www.hackster.io/karakoram/project-theia-99770d
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