Category: project

Learn how to setup Android on your Raspberry P…

Learn how to setup Android on your Raspberry Pi.

Log Temperature Sensor Data to Google Sheet us…

Log Temperature Sensor Data to Google Sheet using NodeMCU ESP8266

There are many IoT clouds available to store and monitor the data from various sensors. With increasing popularity of IoT, more number of sensors are used every day and these sensors produce anonymous data which are useful to control other devices on the IoT network. These data can be studied further and used to modify design or improve the system performance. The Applications of Data Logging is vast and can be applied in Research Centres, Scientific Labs, Operation Theatres, Patient Monitoring System and many more.

Check out this useful DIY IoT tutorial: https://circuitdigest.com/microcontroller-projects/log-temperature-sensor-data-to-google-sheet-using-nodemcu-esp8266

Interfacing VL6180 ToF Range Finder Sensor wit…

Interfacing VL6180 ToF Range Finder Sensor with Arduino for Distance Measurement

VL6180 differs from other distance sensors as it uses a precise clock to measure the time taken by the light to reflect back from any surface. This gives VL6180 a benefit over other sensors because it’s more accurate and immune to noise.

learn more: https://circuitdigest.com/microcontroller-projects/arduino-vl6180-tof-range-finder-sensor-for-distance-measurement

Make a Non-Contact Infrared Thermometer with I…

Make a Non-Contact Infrared Thermometer with IR Temperature Sensor
When debugging an electronics circuit or testing a new hardware design, often times I tend to check if the components on the board are getting hot abnormally by touching them. And if something is messed up (which usually is in the first try) these components could get as hot as 80°C or more burning not only the component but also my finger along with it. After burning my fingers for more times than I could remember I decided to build my own Temperature Gun using Arduino and an Infrared Temperature Sensor. This Thermal gun will be built using a non-contact temperature sensor called MLX90614; hence it can not only be used to measure component temperatures but can also be used for measuring body temperature, surface temperature, Heat ventilation and much more. Of course, these thermal guns are readily available in the market from renowned manufacturers like Fluke, Flir etc. But they are not light on your pockets and on top of that what is more fun than building your own gadgets.

Check out the project here: Arduino Infrared Thermometer Project

Lora Based GPS Tracker using Arduino and LoRa …

Lora Based GPS Tracker using Arduino and LoRa Shield
In this tutorial we will build GPS tracking system using LoRa, the system will consist of a Transmitter which will read the location information from the NEO-6M GPS module and transmit it wireless over Lora. The receiver part will receive the information and display it on a 16×2 LCD display.

Check out the tutorial here: https://circuitdigest.com/microcontroller-projects/lora-based-gps-tracker-using-arduino-and-lora-shield

Raspberry Pi Bluetooth Speaker: Play Audio wir…

Raspberry Pi Bluetooth Speaker: Play Audio wirelessly using Raspberry Pi

In this post we will build Raspberry Pi based Bluetooth Speaker by fusing the power of A2DP, Linux and audio codec to stream the data packets from an audio source to an audio sink wirelessly. To do so we are going to hack a little bit of Linux system and write a piece of code in bash and python and we will be in business.

Check out the full post here

Arduino Whistle Detector Switch using Sound Se…

Arduino Whistle Detector Switch using Sound Sensor
As a kid I was fascinated by a toy music car which gets triggered when you clap your hands, and then as I grew up I wondered if we can use the same to toggle lights and fans in our home. It would be cool to just turn on my Fans and lights by just clapping hands instead of walking my lazy self to the switch board. But often times it would malfunction as this circuit will respond to any loud noise in the environment, like a loud radio or for my neighbor’s lawn mower. Although building a clap switch is also a fun project to do.

Check out the full project here: https://circuitdigest.com/microcontroller-projects/arduino-whistle-detector-switch

How to install Node-RED on Raspberry Pi to Con…

How to install Node-RED on Raspberry Pi to Control an LED:

Sending Sensor Data to Android Phone using Ard…

Sending Sensor Data to Android Phone using Arduino and NRF24L01 over Bluetooth (BLE)

Here in this tutorial we will demonstrate how to send any data over BLE using nRF24L01. We will send temperature readings from DHT11 to smartphone using Arduino and nRF module over BLE.

Link to the tutorial: https://circuitdigest.com/microcontroller-projects/sending-sensor-data-to-android-phone-using-arduino-nrf24l01-over-bluetooth-ble

IoT Based Biometric Attendance system using Ar…

IoT Based Biometric Attendance system using Arduino and Thingsboard

In this project our aim is to leverage this IoT into the boring attendance system to make it smart and more effective. Most conventional attendance systems available today store the information over a micro SD card and have to be connected to software via a computer to access the information. Here, we will build a biometric attendance system using Arduino that scans for finger print and on successful identification of the person it will log the information to a cloud platform like ThingsBoard by using the ESP8266 Wi-Fi module. This information can then be displayed in the dashboard of ThingsBoard making it available for the required authorities to view and analysis information over the internet without having any direct physical access to the hardware. However the conventional Attendance system without involving IoT can also be built by following the link and Finger print sensor can be further used for many other biometric applications like Voting Machine, Security system etc.

Check out the full project details and instructions here: https://circuitdigest.com/microcontroller-projects/iot-based-biometric-attendance-system-using-arduino-and-thingsboard