Electronics

Electronics, embedded, microcontroller, pic, projects, hobby circuits, circuit, blog, transistor, technology

Interfacing LCD with Arduino Uno

16x2 character LCD display is a very basic LCD module which is commonly used in electronic projects. 16x2 means it can display 2 rows of 16 characters (columns). Its other variants such as 16x1, 16x4 etc are also available. These LCDs are usually made using HD44870 compatible controllers. In this tutorial we will see how to interface a 16x2 Character LCD display with Arduino Uno development board. Arduino provides built in libraries for interfacing HD44870 compatible LCDs. 16x2 LCD Pin Diagram In...

November 19, 2014By Alisha TomyArduino, Electronics, Tutorials16x2, Arduino, Arduino Uno, LCD0 CommentsRead more...

Compensated Attenuator

An attenuator is an electronic device which reduces the power or amplitude of a signal without considerably affecting the wave shape. Thus it works in an opposite way that of an amplifier does. Attenuator provides loss (gain < 1) while an amplifier provides gain (gain > 1). A Compensated Attenuator is a simple two port network which provides a constant attenuation over a wide range of frequencies. Here I am explaining attenuators and compensation in the input of vertical deflection amplifiers used...

August 9, 2014By Ligo GeorgeBasic Electronics, ElectronicsAttenuator0 CommentsRead more...

Siren Generator using IC UM3561

IC UM3561 is a CMOS LSI IC commonly used in alarm and toy applications. It is able to generate Police Siren, Ambulance Siren, Fire Engine Siren and Machine Gun Sound just by changing simple connections. It is a low cost and low power IC which can work down to 2.4V. We need only a few additional components as this Integrate Circuits has built in oscillator and selector circuits. About IC UM3561 IC UM3561 - Block Diagram Basic blocks of IC UM3561 are shown...

August 6, 2014By Vivek KarthaElectronics, Hobby Circuits, ProjectsUM35619 CommentsRead more...

Getting Started with Arduino – LED Blinking

Arduino Uno R3 Arduino Uno is the best development board for beginners in the field of embedded systems. We can program Arduino board with less technical knowledge and programming skills. This tutorial is intended to beginners in the field of Arduino. Hope you already have an Arduino board. Then you have to download Arduino Software and Driver. You can download it from Arduino Website. Installing Arduino Driver Now connect the Arduino to your computer using a USB cable. As usual Windows may start...

July 17, 2014By Alisha TomyArduino, Electronics, TutorialsArduino, Arduino Uno0 CommentsRead more...

Arduino Uno

Arduino Uno R3 The Arduino Uno is the most popular one among other Arduino development boards. It is based on the microcontroller ATmega328. The factor which make Arduino Uno differ from others is that it does not use FTDI USB-to-serial driver chip. Instead it uses a microcontroller Atmega16U2 (Atmega8U2 up to version R2) which is programmed as USB-to-serial converter. Its peripheral features includes 14 digital input/output pins (of which 6 can provide PWM outputs), 6 analog inputs, a 16MHz crystal oscillator, a USB...

July 5, 2014By Alisha TomyArduino, Electronics, TutorialsArduino, Arduino Uno0 CommentsRead more...

Arduino – Development Board For Beginners

Arduino Uno R3 Arduino is a development board based on Atmel Microcontroller introduced in 2005. It is intended for beginners in the field of electronics. This can take inputs from different switches, sensors and can given output to surroundings through light, sound, motion etc. This is the most convenient method for computer based students to develop electronic projects with basic knowledge in electronics. It is an open source system which is flexible and is easy to use. Arduino has its own...

June 18, 2014By Alisha TomyArduino, Electronics, Tutorials0 CommentsRead more...

Read Modify Write Problem with Mid-Range PIC Microcontrollers

RMW Problem with PIC 16F Family Microchip's mid-range PIC Microcontrollers use a sequence of operations : Read, Modify and Write to change output state of a pin. In certain circumstances RMW operations might cause unexpected behavior of outputs. You might have already experienced this issue and struggled with it as you can't find exact reason with microcontrollers unexpected behavior. Mid-Range PIC Microcontroller uses two registers, TRIS and PORT to control the direction and status of an IO pin respectively. When you try...

June 16, 2014By Ligo GeorgeElectronics, PIC Microcontroller, TutorialsHi-Tech C, MATLAB, Microcontroller, MikroC, PIC, Proteus, RMW, Tutorials2 CommentsRead more...

UM66 Melody Generator – First Step for Electronics Hobbyists

UM66 UM66 is a melody generating IC commonly used in calling bell, phone, toys, musical bell in doors, home security alarm systems, burglar alarms etc. It is a three pin IC looks like a transistor. Its first pin is ground, second is VCC and the third is the melody output. Supply voltage that can be given to the IC is in the range of 1.5V- 4.5V. These are CMOS ICs and have very small power consumption. Melody generator will reset when the...

May 30, 2014By Alisha TomyElectronics, Hobby CircuitsMelody Generator, Speaker, UM662 CommentsRead more...