General Purpose Timer

Timers are one of the most important devices in terms of bringing automation in our life. Today almost all smart home electrical appliances like fridge, heater etc. have their own inbuilt timers. But in sometime we want to control electrical devices which do not have any automation. For example running […]

Easy DTMF Keypad for Arduino and Microcontroller Projects (Wireless and Wired)

While making Arduino, 8051 microcontroller or any other digital electronics project we often need human interaction and we use keyboard or keypad. Making custom keypad for individual prototype project is time consuming and painful process. It also takes large number of microcontroller pin for interfacing. In this tutorial I am […]

Page 1 Page 2