Time delay relay circuit
What is a time delay relay circuit? In a time delay relay circuit, relay contacts are closed or open after the preset time interval. Whereas in a normal relay contacts…
What is a time delay relay circuit? In a time delay relay circuit, relay contacts are closed or open after the preset time interval. Whereas in a normal relay contacts…
About LM4890 1 Watt audio amplifier for mobile device has been designed using LM4890 power amplifier. LM4890 is primarily designed for mobile phones and other portable devices. It is capable…

Real time clock with DS1302 is designed using Arduino Uno. About DS1302 The DS1302 is a trickle-charge timekeeping chip containing a real-time clock/calendar and 31 bytes of static RAM. It…

Latest windows update allows you to have a full Ubuntu-based Bash shell. This allows you to run the Bash shell and the exact same binaries that you would normally run…

A seven segment display is typically used to display numbers from 0-9. It consists of 7 bar segments and a dot( 8 Segments). They are numbered A to F and DP…

Introduction In this post I will let you know how to set up web server on raspberry pi. There are many web servers for raspberry pi. In out example we…
LM 7660 is a CMOS voltage convertor capable of converting a positive voltage in the range of +1.5 v – 10 v to the corresponding negative voltage of -1.5v to…

This circuit has been developed to add a USB charging port to a bicycle for charging a mobile phone. The input supply for the circuit is produced by a dynamo…

Introduction In this project, a simple light sensor is designed using LDR. The project is built around Arduino. Components required Arduino UNO Light Dependent Resistor (LDR) 100 KΩ POT Buzzer…