This project is just a smart version of any keypad lock. What’s smart about it is that it can detect whether it is needed by the user or not and accordingly switches itself to take a sleep. Making a microcontroller to sleep reduces power consumption as well as increases its usage span. Many of you […]
Sleeping Security – Smart Keypad Lock using AtMega16 Read More »
REQUIREMENT: AtMega 16 microcontroller L293D motor driver IC Bluetooth module (HC05) Chassis Motors & Wheels Mobile phone (Android + Bluetooth compatibility) Battery (for car section) DESCRIPTION: Have you ever wondered of operating a toy car with you own mobile phone? Yes I have made such a thing. This project involves the communication between your mobile
Mobile – Gesture Controlled Car Read More »
This tutorial explains how to make your own power supply unit for all your electronics andembedded system experiments. It also has a backup battery which will be used in case of power cuts and a display. Components Required 1. SLA 12V battery 2. Banana Jack connectors female (2 pairs each) 3. Screw Terminals (1 pair)
Un-interruptible Bench-top DC Power Supply With Display Read More »
REQUIREMENTS: AtMega 16 Microcontroller (development board) Fingerprint scanner module (R305) 16X2 Alphanumeric LCD (for user display) DESCRIPTION: In today’s secure world biometric safety is on the top. Unlike other techniques which make use of passwords and numbers, that are needed to be remembered, biometric techniques make use of human body parts like fingerprints or even
Fingerprint Detection using Microcontroller Read More »
This article is in continuation to the article Single character LCD display using AVR. The aforesaid article shows how to display a single letter on LCD. Moving forward towards learning to work with LCD, this article explains how to display a string on LCD. Displaying string is occasionally used in many applications. The connection of
How to display text on 16×2 LCD using AVR microcontroller (ATmega16) Read More »
This is the most interesting article to play with LCD. After going through the article, you can create any character/symbol which cannot be created using the ASCII values for example smiley. You can even create small games. Conventionally 16X2 LCD is use to display text or numerical values. It is possible to display special characters,
Display custom characters on LCD using AVR Microcontroller (ATmega16) Read More »
Microcontroller understands only digital language. However, the inputs available from the environment to the microcontroller are mostly analog in nature, i.e., they vary continuously with time. In order to understand the inputs by the digital processor, a device called Analog to Digital Converter (ADC) is used. As the name suggests this peripheral gathers the analog
How to use inbuilt ADC of AVR microcontroller (ATmega16) Read More »
Communication between two entities is important for the information flow to take place. In general the information transport system can be parallel in which the complete byte of data is sent at a time, with each bit having a separate dedicated line or it can be serial where only one communication line is available which
Serial communication (Data receive) using AVR Microcontroller (ATmega16) USART Read More »
This article covers data transmission using 8 bit USART. The readers should have a basic understanding of serial communication and how to receive the serial data output. More details on these topics are available on Serial communication using AVR Microcontroller USART. The registers of USART system are already explained in previous article. Before transmitting the
How to interface AVR microcontroller with PC using USART (RS232 protocol) Read More »
In our previous articles on serial data transmission using AVR microcontroller we have demonstrated serial communication using the polling method. In Polling, the microcontroller waits for the RXC flag (in the case of serial receiver) to go high and then moves to the next instruction. This is not a good programming technique to keep the
Serial communication with AVR microcontroller using interrupts Read More »
