In this project we are going to interface a digital potentiometer with arduino. In this demonstration potentiometer MCP41010 is used but you can use any digital potentiometer of MC41** series. By Ankit Negi INTRODUCTION TO MC41010 Digital potentiometers are just like any analog potentiometer with three terminals with only one difference. Whereas in analog one […]
Newly Updated Circuit Projects:
Password Controlled AC Mains ON/OFF Switch
In this post I will show how 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. Password Protection […]
Make this Advanced Digital Ammeter using Arduino
In this post I will show how to construct a digital ammeter using 16 x 2 LCD display and Arduino. We will understand the methodology of measuring current using a shunt resistor and implement a design based on Arduino. The proposed digital ammeter can measure current ranging from 0 to 2 Ampere (absolute maximum) with […]
Over Current Cut-off Power Supply Using Arduino
In this post I will show how to construct a battery eliminator / DC variable power supply which will automatically cut-off the supply, if the current flow through the load exceeds the preset threshold level. Main Technical Features The proposed over current cut-off power supply circuit using Arduino has 16 X 2 LCD display, which is […]
Introduction to EEPROM in Arduino
In this post I have explained what EEPROM is, how data is stored on built in EEPROM on Arduino board’s Microcontroller and also practically test how to write and read data on EEPROM by a couple of examples. Why EEPROM? Before we ask what EEPROM is? It is very important to know why EEPROM […]
Introduction to RGB Colour sensor TCS3200
TCS3200 is a color light-to-frequency converter chip which can be programmed through a microcontroller. The module can be used for detecting all the 7 colors of white light with the aid of an integrated microcontroller such as Arduino. In this post we are going to take a look at RGB color sensor TCS3200, we will […]