COMBINATION LOCK FOR SAFE using PIC16F628

Introduction This program is a simple combination lock that I designed for an old Sentry® fire safe that was given to me without any lock electronics. I created a front panel with a keyboard and microprocessor with a six-digit combination sequence. Details The LED flashes to show it's alive after power is applied. The lock solenoid requires 6VDC at approxmately 2 amps. Given that a small 9V battery is used ...

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Electronic Security System With RTC and User Define Pin Code

Hi Guys! This is a project that I made using pic microcontroller its an Electronic PIN Code Security System with real time clock and user define pin code features, this page contains all the details to make one yourself. ITS WORKING AND CONCEPT: Well by turning Security System on, it will ask for a PINCODE to open gate, (its 140595) if you enter it correct, the door will open. Door is opened for 1 min only, ...

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Traffic Message Channel receiver using PIC18F8722

Main roads traffic status and incident report and display. Technical specifications: Dual display: colour road map (left) and detailed text messages (right) both with LED backlight. Up to 120 TMC messages are stored in memory. Auto/manual TMC message scrolling. GPS position locator/follower optional. Map navigation with  mouse sensor and/or micro joystick. Map zoom 10km to 80km (in 10km steps) City and area ...

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4 ALARM SOUNDS using PIC12F629

This project is a miniature 1-chip alarm. All you need is a tilt switch, battery and piezo to produce a complete alarm. If you want a very high output, you can add a Darlington buffer transistor, piezo tweeter and a 10mH choke. The chip does all the work. It sits in sleep mode (100 microamps) and waits for the enable line to go high via the tilt switch. It then produces a SPACE GUN alarm for approx 3 minute ...

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Solar tracking system using pic microcontroller

Solar tracking system using pic microcontroller, In this article you will learn what is solar tracking system? Why We need of solar tracking system ? Which methods of solar tracking system being used now a days ? How to design Solar tracking system ? circuit diagram of solar tracking system. How to write code of Solar tracking system using pic microcontroller? Let’s start with basic introduction of solar tr ...

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Single button code entry for a digital lock using PIC16F628A

The Button Code is a system that allows a single button to act as a keypad. The user enters a 4 digit code into the system using button taps. The button can be placed where the public can access it since like a keypad there are many combinations to keep guessers from activation the system. When the correct code is entered a form-C relay is activated (Normally Open and Normally Closed relay contacts). When a ...

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A PIC-Based Temperature Alarm using PIC16C84

Presented is a simple temperature alarm which uses a PIC16C84 microcontroller and a 2-line LCD display. The alarm displays current temperature in both Celsius and Fahrenheit degrees and features a 3-key keypad which allows the user to set independent high and low termperature alarm points. The alarm also records the minimum and maximum temperatures encountered. System Specifications: The unit is designed to ...

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Dialing Alarm using PIC16F628 Microcontroller

This is the lowest-cost dialing alarm on the market and shows what can be done with a PIC microcontroller. The complete circuit is shown below. You cannot see all the features of this project by looking at the circuit - most of them are contained in the program. So, read on and see what we have included. . . The programming socket is not on the PC board - it has been added for the time when you want to modi ...

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Contactless Digital Tachometer using PIC Microcontroller

Hey friends, I should have posted this project last month itself  but there was some problem with the circuit. [link], author of this project did an exellent job. I have been watching him learning on this website. He came as a total noob but now he is well versed with 8051 and PIC microcontroller. earlier he has submitted Microcontroller Based Home Security System This project is about A Contactless Digital ...

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Keypad scanning and interfacing with PIC16f877 microcontroller

Here I give you very important and simple project on Keypad / keyboard scanning and interfacing with PIC16f877microcontroller . To start big project you need to know small and necessary one first. So we start form basic . In my previous post I write on Scrolling Text on LCD by PIC Microcontroller Displaying text on LCD by interfaced with PIC16F877 microcontroller in 4 bit mode Simple Project on LED blinking ...

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