Arduino is an open source electronics platform accompanied with hardware and software to design, develop and test complex prototypes and electronic circuits. The hardware consists of a microcontroller assembled with other electronic components that can be programmed by using Arduino Programming Language (APL).
The Arduino microcontroller has countless innovative applications in several areas like embedded systems, robotics, control applications and scientific equipments. Therefore, this particular article highlights some Arduino Projects for Beginners that can be applied for real-time applications.
Latest Arduino Projects for Beginners
1. Arduino Based Home Automation System
Home automation is the residential extension of a building automation. It is the automation of the housework or any of the household activities. House automation includes centralized control of the lighting and HVAC (heating, ventilation and air conditioning) appliances. Home automation refers to the use of control system with computer-based networks like a local area network to control home appliances.
This Arduino home automation project uses Bluetooth technology to operate the appliances that can be remotely controlled by an Android OS smart phone. A Bluetooth module each is interfaced to an Arduino board at the receiver end and at the transmitter end, respectively; and a Graphical User Interface application-based cell phone sends on and off commands to the receiver to operate the loads.
In this set up, the lamps loads are controlled by a set of TRIACs whose gates are controlled by the signals from the Arduino microcontroller. Opto-isolators are used here to isolate the high-voltage currents of the load to the signal level currents of the microcontroller.
2. Arduino Based Underground Cable Fault Detection
In many of the urban areas, if a fault occurs in the underground cable, it is extremely difficult to know the exact location of the cable fault during the repairing process. Therefore, this project determines the distance of the underground cable fault from the base station in km. The system here uses an Arduino board that comes with a built-in communication, power and reset capabilities.
This proposed system finds the exact location of the fault based on the concept of Ohms law, i.e., when a low DC voltage is applied to a series of resistors (here cable lines), the voltage dropping across each resistor varies depending on the location of the cable. In case of a short circuit, the voltage across a series of resistors changes accordingly, and the voltage is then fed to an inbuilt analog to digital converter of the Arduino board. And then, according to the voltage dropped, the display of the fault is displayed in Km on the LCD display.
The fault switches present at each resistor create the fault at that particular place, and therefore, when any one of these switches is pressed, the corresponding voltage dropped is supplied to the microcontroller. Here, a set of relays is placed to create the ground faults at particular instants.
3. Arduino Based Solar Street Light
Solar power is a renewable energy source, and it is available during the day time only. Therefore, there is a need to conserve this stored energy in batteries in order to make it available for whole night, especially for the street lights. This project therefore achieves the much needed energy conservation by controlling the intensity of the street lights according to the density of the traffic on roads.
This particular project consists of a charge-controller circuit and also an auto-intensity control circuit. The charge-control circuit controls the battery charge by utilizing the power from the solar panel and also provides over-voltage and under-voltage protections of the battery. As the traffic on a road decreases during late night hours, the intensity of the lights also reduces progressively until the next morning to save energy. Therefore, the lights will be switched on during the night time and switched off automatically in the morning.
Hence, to control the intensity of the light at different times during the night, the solar street lights’ intensity control system is engaged with a programmable Arduino by using a Pulse-width modulation technique. This system employs MOSFET as a switching device wherein its gate is controlled by an Arduino microcontroller to achieve PWM technique.
4. Arduino based LED Stair Lighting
It is always necessary to maintain enough lighting around staircases to prevent accidents while walking upstairs or downstairs, and – at the same time, it is also necessary to conserve the energy. An Arduino-microcontroller based project fulfills this requirement by tuning, adjusting and turning on the staircase lights when a person approaches near to them, and then turning them off when that person leaves the stairs.
Arduino operates two sets of IR transmitter and receiver: one set is placed at the bottom of the staircase, and the other one is placed at the top of the staircase. Both of them are arranged in parallel connection. When a person walks on the stairs, the signal between the transmitter and the receiver gets interrupted, and – as a result, the Arduino receives the signal. The Arduino is programmed in such a way that by receiving the interrupted signal, it controls the set of LEDs that provide random lighting to the stairs.
These are some of the simple Arduino Projects for Beginners that uses Arduino board for their operation. You might have gained some valuable insights out of this article particularly from the projects related to Arduino system, after thoroughly reading them. Apart from this, for any assistance regarding projects including details, suggestions, and comments, you can comment in the comment section below.