Electronics Projects

In this project we are going to interface 5 RGB (Red Green Blue) LEDs to Arduino Uno. These LEDs are connected in parallel for reducing PIN usage of Uno. 

A typical RGB LED is shown in below figure:

The RGB LED will have four pins as shown in figure.

PIN1: Color…

In this tutorial we are going to interface an Optocoupler with ATMEGA8 microcontroller. Octocouplers are fascinating devices used to isolate the electronic and electrical circuits. This simple device isolates the sensitive electronics from robust electronics like motors, yet keeping the load in control over the source.

In this project we will be developing a fun circuit using Force sensor and Arduino Uno. This circuit generates sound linearly related to force applied on the sensor. For that we are going to interface FORCE sensor with Arduino Uno. In UNO, we are going use 8 bit ADC (Analog to Digital Conversion) feature to do the job.

In this project we are going to interface a ROTARY ENCODER with ARDUINO.  ARDUINO UNO is an ATMEGA controller based development board designed for electronic engineers and hobbyists. In ARDUINO we have 20 I/O pins, so we can program 20 pins of UNO to be used as either input or output.

A ROTARY ENCODER is used to…

Schmitt Trigger gate is a digital logic gate, designed for arithmetic and logical operations. It provides OUTPUT based on INPUT voltage level. A Schmitt Trigger has a THERSHOLD voltage level, when the INPUT signal applied to the gate has a voltage level higher than the THRESHOLD of the logic gate, OUTPUT goes HIGH. If the INPUT signal level is lower than THRESHOLD, the…

XNOR or EX-NOR gate is a digital logic gate, designed for arithmetic and logical operations. Here we are going to use 74LS86 chip for demonstration, this chip has 4 EX-OR gates in it. These four gate are connected internally as shown in below figure.

These EX-OR gates are followed by NOT gates. These gates provides…

OR gate is a digital logic gate, designed for arithmetic and logical operations. This gate is mainly used in applications where there is a need for mathematical calculations. Here we are going to use 74LS32 chip for demonstration, this chip has 4 OR gates in it. These four gate are connected internally as shown in below figure.

A binary counter is a chip designed to count the number of pulses or events that occur in digital circuits. These chips memorize the events and show the count of events at output port. The chip memorizes the event and shows the output in binary code, hence the name BINARY COUNTER.  What binary counter does it each time a pulse is appeared at clock pin, it counts it and…

NAND gate is a digital logic gate, designed for arithmetic and logical operations, every electronic student must have studied this gate is his/her career. This gate is mainly used in applications where there is a need for mathematical calculations. So calculators, computers and many digital applications use this gate.

NOT gate is a digital logic gate, designed for arithmetic and logical operations, every electronic student must have studied this gate is his/her career. This gate is mainly used in applications where there is a need for mathematical calculations. So in calculators, computers and many digital applications use this gate.

In this tutorial we are going to show you how to use a Push On-Push Off button by controlling an LED using it. For this, we are using a Self-locking Power Micro Push Button Switch. The switch we are using has double pole option or it’s a DPDT (Dual Pole Dual Throw) type switch. It has the capability to be used as both “normally open” and “normally closed” type switch.…

In this tutorial, we are going to show you that how a push button works and how to use a push button in your circuit. Here, we are controlling a LED using Push Button. A Push Button is a type of switch which shorts or completes the circuit when it is pressed. It is used in many circuits to trigger the systems. A spring is placed inside it to take it back in initial or off…