In this post we are going to learn about L298N dual H-bridge DC motor driver module which can be used to drive brushed DC motors and stepper motors with microcontrollers and ICs. By Girish Radhakrishnan Modular circuit boards are best time saviour for electronics designers which also reduce the prototyping errors. This is mostly preferred Read More
Multiple Battery Charger using Dump Capacitor Circuit
In this article we will try to build an automatic battery charger circuit using dump capacitor concept for self detecting and charging a multiple set of batteries. The idea was requested by Mr. Michael. The Request Hi Swagatam, My name is Michael and live in Belgium. I found your site thru google during my search of Read More
Relay Trigger by Color Detection Using Arduino
In this post we are going to construct a circuit which can detect color and trigger respective assigned relays. This project is accomplished using TCS3200 color sensor and Arduino board. By Girish Radhakrishnan If you haven’t read the previous article, please go through it where we have discussed the basics of color sensing using TCS3200 Read More
Using TSOP17XX Sensors with Customized Frequencies
We know that the center or band-pass operating frequency of a TSOP17XX IR sensor is assigned to a particular frequency which makes it difficult to use these sensors for designing unique or customized frequency based remote control circuits. In this post we will try to figure out an idea for enabling these sensors to work Read More
Introduction to RGB Colour sensor TCS3200 with Arduino
In this post we are going to take a look at RGB color sensor TCS3200, we will understand how the color sensor works and we will be practically testing the TCS3200 sensor with Arduino and extract some useful data. By Girish Radhakrishnan We see the world every day, filled with rich colors, have you ever Read More
Password Based AC Mains ON/OFF Switch Circuit
In this post we are going to construct a password based mains ON/OFF switch circuit, which can turn ON and OFF the AC mains supply, only when correct password is entered. This prevents the danger of electrocution of the technician who might be currently working with the high voltage lines and equipment. By Girish Radhakrishnan Read More
