Security is a prime concern in our day-today life. Everyone wants to be as much secure as possible. An access control for doors forms a vital link in a security chain. The microcontroller based digital lock for Doors is an access control system that allows only authorized persons to access a restricted area. An electronic […]
PIC Microcontroller Based Electronic Lock Read More »
Interfacing an SPI-Interface RTC with a PIC Microcontroller – Maxim Application note describing how to interface an SPI-interface RTC with a PIC microcontroller. . PIC, real time clock, RTC, spi interface, pic microcontroller . -> Using a D Interfacing an SPI-Interface RTC with a PIC Microcontroller – Maxim Application note describing how to interface an
rtc microcontroller Read More »
Complete Circuit Board Lab & POV Business Card Introduction Though there are many Instructables on some aspect of how to make circuit boards, this one is different. It’s an instructable on how to make the things you need to make circuit boards, specifically, a flamboyant business card toy. Over the past six months I have
Complete Circuit Board Lab & POV Business Card using PIC12F508 microcontroller Read More »
Introduction On this page a circuit is described, making it possible to interface a PIC and a PS/2 mouse. If you send me a request (read further), it is possible to obtain for free also the assembler program to communicate with the PS/2 mouse. The PIC microcontroller used to test and develop the communication with
Mouse interfacing and communication using PIC16F877 Read More »
The goal of this project is to construct a simple 0-9999 seconds count down timer with an alarm and a display. The time is set through two tact switches and the count down seconds are displayed on a 4-digit seven segment LED display. The project uses PIC12F683 microcontroller for all I/O and timing operations and
0-9999 seconds count down timer using PIC12F683 microcontroller Read More »
This post provides the i2c code (using the i2c module built in the hardware[1]) for PIC16F877 microcontroller. This code is written in C language using MPLAB with HI-TECH C compiler. You can download this code from the ‘Downloads‘ section at the bottom of this page. It is assumed that you know how to blink an LED with PIC16F877 microcontroller.
PIC16F877 i2c code and Proteus simulation Read More »
While driving on highways, drivers should not exceed the maximum speed limit permitted for their vehicle. However, accidents keep on occurring due to speed violations as drivers follow their speedometers and control their speed according to them, and reduce the speed if they find it to be exceeding and beyond their control. A highway speed checker comes handy
Projects on Speed Checker To Detect Rash Driving On Highways Read More »
A short video clip is sometimes better than a long explanation : The idea of this circuit is to hack PIC oscillator circuit, by replacing the crystal by a coil : the frequency of the oscillator then depends on presence of metal near the coil, just like in a classic metal detector. To detect changes of main
PicoDetector : a PIC-based simple and cheap metal detector Read More »
A friend of mine and I want to share with you what I did to set the thermostat circuit. As I used the circuit temperature sensor Ds18B20. 3-digit, 7 shows the screen with dijit. Please note that the range of 0 to 99.9. When the relay circuit arranged to set value is designed to get
PIC16f628 DS18B20 Adjustable thermometer circuit Read More »
i am currently working with some power supply design and i can say using conventional pots(potentiometer) and rotary switch to adjust the voltage and other stuff is quite old school. so i have decided to go for a bit high tech , actually bit digital. so here is the solution Incremental Rotary Encoder first of all i would
Rotary Encoder Interfacing with PIC Mirocontroller Read More »
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