HC-SR04 is an ultrasonic sensor, most commonly used for range detection/ distance measuring. It uses SONAR mechanism for its working and can detect obstacles from (1-13) feet. Ultrasonics are Independent of : Light Smoke Dust Color Material (except for soft surfaces, i.e. wool, because the surface absorbs the ultrasonic sound wave and doesn’t reflect sound.) […]Read More Using HC-SR04 with Arduino.
The “WHY” of the Project!. The increasing number of visually impaired people requires the development of assistive devices around the world. The problem can be solved by using a device that would serve as a smart guide to them. This device for visually impaired people would help them to travel and be self dependent. This […]Read More Intelligent Multi-Utility Shoes For The Blind.
We will begin with a question, When a P-N junction diode terminals are left open circuited , the voltage measured between them is zero. That is, the voltage V0 does not appear between the diode terminals. Why is that? I’m talking about the voltage V0 depicted here in the image : Why are we not […]Read More DEEPER INTO THE P-N JUNCTION.
In general terms, a leakage current can be defined as a current which flows through a circuit when the circuit is thought out to be in a OFF state. In OFF state no current should be flowing in a device. To get a more general idea, In a reverse biased diode, a current still flows […]Read More ORIGINS AND EFFECTS OF LEAKAGE CURRENT IN A DIODE
I would start this post with an assumption that you are already a bit familiar with the CMOS circuit and have a basic overview of its operation. An in-depth working of the N_CHANNEL and P_CHANNEL 3 terminal MOSFET(as ‘source’ and ‘body’ terminals are assumed to be connected together so as the ‘body effect’ is eliminated(I’ll […]Read More CMOS Inverter. PULL-UP & PULL-DOWN Network detailed explanation.
Let us consider any electrical network(a digital gate) A. If we connect another electrical network(B) at the output of of A, due to finite resistance of B, some current will be flowing through it. Carefully note that the network A will be acting as a source for the current. This is what is known as […]Read More What does “load-driving” capability actually mean?
This project will demonstrate simple data transmission by sending data from one Arduino board to another wirelessly using Xbee modules. Xbee’s are products names for radio communication modules made by Digi. These modules are popular because they are easy to add to embedded designs. They are most convenient and easy to use with Arduino Uno […]Read More WIRELESS COMMUNICATION USING XBee. (Arduino Uno).
In this very short project, I have used a MPU6050 for controlling 4 LED’s on the breadboard. The gyroscope is programmed to detect the tilt in the breadboard and then turn on the respective tilted LED. For the connections. LED’s :- const int frontLed = 3; const int bottomLed = 5; const int rightLed = […]Read More Gyroscope LED control Using Arduino NANO.
The most effective and easy to learn programming language in today’s world is python. With millions of applications and the most user friendly interface we can almost do about anything with it. Here I have tried to club Arduino environment with that of a python user. First, you will need to download python on your […]Read More CONTROLLING YOUR ARDUINO USING PYTHON SHELL.
As I currently reside in India, most of the houses here have a LPG -Gas stove system for cooking food and various other kitchen activities. There are LPG cylinders which are used as a fuel source for the gas stove. Many a times, disastrous accidents take place due to leakage of these cylinders, in these […]Read More MQ-2 Gas Sensor Arduino.