Electronic Projects

Arduino can control the servo motor very accurately because of it has built in 8 bit PWM generator and servo motor library functions. It can rotate servo motor to desire angle very accurately as well as by reading servo motor feed back, it can read exactly the current angle of servo motor. Similarly it is very easy to interface UltraSonic Distance measurement (UDM) sensor with arduino. By connecting UDM with arduino, we can easily detect any object and get its distance.This radar uses UDM sensor that is continuously rotated from 0o to 180 o and 180 o to 0 o using servo motor. 

When we are working with radio frequency technology, and after successfully sending and receiving data, next is to find up to how much distance receiver can receive the signal from transmitter that means the range.  Range means the area of variation between upper and lower limits on a particular scale. In other words transmitter can transmit signal up to some distance. After that, RF signal will totally corrupt because of noise (EM wave becomes plane wave). In current system, different frequency modules works with different ranges, like 434 MHz RF module normally works 70 to 100 meters. But range is based on several factors like input power, antenna size etc.

How to capture images and video on the beaglebone – I do this using Open Source Computer Vision (OpenCV) image processing. OpenCV image processing captures image and video data on the BBB (Beaglebone Black) with the help of USB webcams by using python script programming. It is simple tutorial where you can also add effects in the form of black and white image, motion detection, sharp picture etc. I have used opencv library which programs functions of real time computer and machine learning. In this project required tools are Webcam and Beaglebone Black.

As the name suggests, this is a demonstration of one military application in which the system automatically launches missile when any object is detected and it comes within the range. In actual system there is micro wave RADAR that detects any object and immediately fires missile to shoot the target.  Here in given system it uses ultrasonic sensor to detect any object. The sensor scans complete 360o circle by rotating continuously and when it detects any object that is within 2 feet (60 cm) range, it launches the missile. It is build using AT89C51 micro controller. It also uses LCD to display a different message as well as the distance of an object.

It goes without saying that technology is highly responsible for transforming the world around us in so endless number of ways. Not only it’s growing at a faster pace but it’s also gradually leading us to a smarter and better future. The term that has lately become the talk of the town is Internet of Things i.e. IoT. We are completely surrounded by so many applications of IoT in our daily lives but most of us are not aware of them. Interestingly, IoT was coined in 1999 by Kevin Ashton, a British entrepreneur, while he was working in his lab. 

This project is a light gradient-sensitive robot with solar charging capabilities. In other words, it seeks out the light to charge itself. It accomplishes this behavior with four light-sensitive photoresistors in voltage divider circuits; the Arduino unit reads the four values corresponding to the intensity of the light received by the sensors through its analog read pins. It then applies a high voltage across a reed switch, which completes a circuit between a 9v battery and two toy motors, resulting in turning or moving towards the light.

Want to know why your monthly Electricity bills are “so high”? Take a closer look at the Lights or Fans, when a person inside the room leaves the room hastily, He or She unknowingly leaves the Lights switched on.So, what next? The only way for this is Intelligent Automated Home Lighting System. In this system when a person enters the room the tube lights are switched on automatically. The light switches go off automatically when there is no body inside the room. The whole Intelligent Automated Home Lighting System is now at the tip of your motion. As one moves inside the room the bulb switches on and as one leaves the room it switches off.  

Like Line following robots are fun, making a wall following robot is even more exciting. A wall following robot is designed to move along a wall without hitting it. It has obstacle detection sensors mounted on the body which detects wall and drive DC motors attached to the wheels such that the robot keeps moving along the wall.The robot can be designed right oriented or left oriented or even can be designed to follow either sides. A right or left oriented wall follower can be designed easily with the help of just two sensors. Though more sensors can be used in making such a robot which will ultimately improve the path accuracy of the robot.

Sometimes Electronics hobbyist gets ideas to build robots from animals in nature. There are robot dogs, robot snakes, robot birds, and even robotic insects! In this project, you will build a robot of your own which will automatically drive chases a light source, mimicking a behavior called photo-taxis, seen in some insects and flowers. This is a robot that chases light, for this to work, the robot needs at least two lights detecting sensors, out in front and spaced apart from each other. 

This article is to make a gesture controlled robot or car. It will help you in building an gesture based android controlled robot without any experience in android app development by providing you the free android app. This app consists of touch and voice controlling interface of your robot. It is simple to start with downloading the app to your phone/tablet and start building your robot by following steps.

This Project aims in the building of one application of robots in the automation of Collecting environmental aspects. The robot supports remote performance monitoring and maintenance of various factors of the environment in any given area. The details of the design, setup and the use of the robot in Data Acquisition (DAQ) system are given here. The sensors provide accurate and reliable real time data needed for autonomous monitoring and control of any type of area or industry. Data Acquired by the proposed system can be remotely accessed, plotted and analyzed. This provides a fully automated solution for the monitoring and control of remote locations.

ESP-NOW is a connectionless communication protocol developed by Espressif for wireless data communication between ESP boards. It allows ESP boards like ESP8266, ESP32, ESP32-C, and ESP32-S to communicate directly without a router or Internet connectivity. This enables a private wireless network among ESP devices, eliminating the need for a router, gateway, or Internet access for…

A dc servo motor provides precise motion control, enabling accurate positioning and speed regulation in various applications. It consists of a rotary or linear actuator, which allows for such precise control of angular or linear position, velocity, and acceleration. It’s used in several sectors, including: Robotics Industrial automation Angular load positioning Avionics Automobiles A few…

Arduino IoT Cloud, also known as simply Arduino Cloud is a popular Internet-of-Things (IoT) platform for creating, deploying, and managing IoT projects. The platform was launched in 2019 as a Beta version similar to other platforms, such as Blynk. Since then, Arduino Cloud has undergone several upgrades, adding unique features. It’s best known for its…

Heltec Lora-32 is a high-quality Wi-Fi LoRa (long-range) development board that competes with the Lilygo TTGO T-LoRa32, RAKwireless WisNode LoRaWAN RAK811, and STMicroelectronics Nucleo boards. What differentiates Heltec LoRa-32 is that it’s more than a LoRa-only device, offering Bluetooth and Wi-Fi capabilities. This allows Heltec to easily integrate into existing network infrastructure in an Internet-of-Things…

Power consumption of the embedded controller is a primary concern in low power design. Arduino boards are often used in devices that rely on battery or solar charging. Such devices often deploy far from the power line to have periodic battery replacement or are mobile devices designed for periodic charging cycles. In such a case,…

In this project, we’ll design an omnidirectional, moving pick-and-place robot. First, let’s cover how the robot is built. The robot’s build As shown in Figure 1, the robot consists of two sections: An omnidirectional moving platform A robotic arm The omnidirectional platform The robot is built using one circular wooden plate, three dc gear motors,…

Color detection is the process of identifying and distinguishing colors within an image, video, scene, or object. Many embedded and robotic applications require this feature, as it’s useful for sorting, selection, test strip reading, path determination, and more.  Two standard sensors used for color detection include TCS230 or TCS3200. TCS3200 recognizes various colors based on…

Contactless body temperature measurement using MLX90614 sensor In the previous two articles of this tutorial series, I demonstrated how to display analog sensor data (like POT, LM35, soil moisture sensor, etc.) or smart digital sensor (DHT11) data on TFT LCD. In this third article, I will explain how to display body temperature on TFT LCD. It…

This is a simple project on arduino, ldr(light dependent resistor)/photoresistor sensor and piezo buzzer. Piezo buzzer output sound level will variate by arduino depending on the intensity of light thrown on ldr/light sensor. An led will also fade by arduino depending on the intensity of light thrown on photoresistor. The diy project is same like…