When TEST botton is pressed, RA3 pin is set to “1”. R2 and R3 are divide the voltage to 1/2 Vra3 which is connected to RA2 pin to be a Vref for comparator. The C undertest is charging and the timer is start. When the voltage of C undertest is more than 1/2 or above […]
Determine capacitance by measuring the charging time using PIC16F688 Read More »
After receiving one IN-8 tube from a friend (thanks), I decided to build myself a clock. This clock is more an ornament than a useful machine because it consists of just one digit (tube) so it displays current time every minute for three times. It is built inside of an old wooden box and it’s
IN-8 single nixie tube clock using PIC16F84 Read More »
This post provides the timer0 code for PIC16F84A 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 PIC16F84A microcontroller. If you don’t then please read this page first, before
PIC16F84A timer0 code and Proteus simulation Read More »
Description : The purpose of this timer is to provide a countdown time from 1 second to 99 minutes & 59 seconds. I use it to control the lighting for the Ultra-Violet exposure of photosensitive PCB material. The project provides also an audible alarm at the end of the countdown time and switches the UV
PIC Countdown Timer using PIC16f84a Read More »
In this article, our author Mithun has developed a 0 – 99 min counter using PIC microcontroller 16F628A. So basically this is a digital count down timer ideal for engineering and diploma students for their project requirements. We have given complete circuit diagram of the digital count down timer along with full source code. In
Digital Count Down Timer using PIC Microcontroller 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 »
Using only 2 capacitors, 3 resistors, 4 BIG seven-segment Display, 1 xtal, 2 switches ,and 1 Microcontroller PIC, you can build this Digital Led Clock main circuit. you can use common anode or common cathode display, just select the display type. Here is the pinout information:(I have attach the all diagrams of parts and 7
Big 7-segment Digital Clock Read More »
Source Code for PIC16F84 and CD4511 decoder Also, there is an updated version with NPN drivers replacing the 4511 and many new features by Brendon Archibald [websales optusnet.com.au] DARKROOM TIMER The purpose of this project is to present a device that is useful and at the same time demonstrate to the beginner many features
Darkroom Timer using PIC16F84 microcontroller Read More »
Are you a beginner in micro controller projects?and are you stuck where to start from?if yes,then this is one of the simplest mini projects that you can start from . This mini project will give you a clear understanding of programming your micro controller. we sometimes look at our watch and wonder ” how does
Digital Clock Using Microcontroller 89C52/89S52 Read More »
A very simple real time clock electronic project can be designed using the PIC16CXXX microcontroller family , designed by Microchip Technology . This real time clock electronic project uses the Timer1 module, from a mid-range PIC16CXXX microcontroller, to control a low-power real-time clock. Timer1 was chosen because it has its own crystal which allows the
PIC16CXXX real time clock electronic project Read More »
