Circuit Lake » Microcontroller

AVR Security Keypad Lock

admin — Thu, 09 Feb 2012 04:20:37 +0000

The Security Keypad Lock Project is a basic access control system based on ATtiny2313. It can be modified to protect just about anything. The “Code Lock” ability will allow the rightful user to deploy the platform to any property that requires simple password-protection.The “AVR” RISC microcontroller used ensures low costs. Possible applications may include: [...]

Generic Finite State Machine Interpreter

admin — Tue, 07 Feb 2012 23:12:34 +0000

A Finite State Machine (FSM) is a versatile mechanism to implement sequential digital circuits. This project implements any desired FSM using the Renesas microcontroller instead of flip-flops and logic gates. The system has a PC based GUI interface where the user can represent the required FSM using a simple State Transition table or a State [...]

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Easy Voice Commander

admin — Sat, 04 Feb 2012 23:46:02 +0000

The purpose of the project is to build uncomplicated voice recognition system based on M32C/84 microcontroller. The main part consists of telephone, some amplifiers, and development board.The project used to operational amplifiers in the analog part, the first one, provide amplification to the signal of 220mV p-p generated by signal transducer (a microphone electret) and [...]

Interruption Alert System

admin — Wed, 01 Feb 2012 22:47:28 +0000

This M32C/84-based office message board project allows you to display a preprogrammed message like “do not disturb”, “in the Lab”, “At Lunch” etc on the LCD positioned at the door. The project has a keypad which is placed on a desk. On this keypad there are 15 buttons and 6 LEDs for control and indicator. [...]

Wireless Instant Messenger

admin — Fri, 27 Jan 2012 00:32:55 +0000

The Wireless Instant Messenger (WIM) project implements a portable and interoperable Instant Messaging Client. It is possible to send and receive Instant Messages over a wireless device to services like Jabber, AIM, Yahoo!, MSN, IRC etc. using this client.The project uses Ethernet and Radio communication to achieve this on the hardware side and relies on [...]

Eight-Channel RF Remote Controller

admin — Tue, 24 Jan 2012 00:55:26 +0000

This controller was developed using Renesas SKP16C62P Starter Kit Plus. Each remote controller is controlled via RF. There are four types of generic control: general purpose timer, sprinkler timer, cooler, and heater. Each Controller may have up to 4 stations, (the Sprinkler Timer may have 8 outputs by multiplexing the outputs). Each controller’s program is [...]

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Low-Cost Vision-Based IR Beacon Sensor for Small Mobile Robots

admin — Sat, 21 Jan 2012 00:17:27 +0000

This project, named as Bsensor, was designed to overcome a difficult task for a small mobile robot in indoors environment; to solve the absolute positioning problem with few computational resources. Several methods exists, but most require triangulation from several sensors and positioning is not easily calculated as it is required that the robot receive signals [...]

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