PIC16F84A internal EEPROM code and Proteus simulation

This post provides the internal EEPROM reading and writing code for PIC16F84A microcontroller. As we know[1], PIC16F84A microcontroller has 64 bytes of built in EEPROM data space with an address range of 0x00 to 0x3F. 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 b ...

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Turntable Photography Equipment using PIC16F84A

A friend asked me if I could build him a device that would allow him to take photos of his products in 360 degrees. That kind of photo is actually an animation that consists of several photos of the same product but from different angles. It means that we need a device that can be controllable and that could take pictures on even intervals. UPDATE: English version of software is now available for download h ...

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CITROEN Saxo Vehicle Touch Sensitive switches using PIC16F84A

Project Summary The CITROEN Saxo Vehicle Touch Sensitive switches For operating Hazards and two peripheral devices If you want to change the look of your dash board inside a vehicle, maybe just fancy some of modern electronics This could be the design for you Project Description Faced with a challenge last year a young lad came and spoke to me re his vehicle Of course the challenge was obviously to fit a ca ...

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Telephone operated remote control using PIC16F84A microcontroller

This design controls up to 8 devices using a PIC microcontroller (PIC16F84A) connected to the phone line. The unique feature here is that unlike other telephone line based remote control, this device does not need the call to be answered at the remote end so the call will not be charged. This device depends on number of rings given on the telephone line to activate/deactivate devices. 1. Circuit diagram (de ...

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PIC16F84A LCD interfacing code (using 3 pins only) + Proteus simulation

This post provides the LCD[1] interfacing code using only 3 pins of 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 make an LED blink with PIC16F84A microcontroller. If you don't then please read this page first, before proceeding with this ...

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Interfacing of PIC16F84A with (i2c based) 24LC64 EEPROM (Code + Proteus simulation)

This post provides the code for interfacing 24LC64 EEPROM with PIC16F84A microcontroller. This 24LC64 EEPROM has i2c based interface and PIC16F84A doesn't have any built in i2c modules, so software i2c module is created in the code. 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 yo ...

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Four way traffic light signal using PIC16F84A microcontroller:

Hi friends, today we are going to make a four way traffic light controller using a PIC16F84 microcontroller. In this project we will operate three LEDs (RED, YELLOW, and GREEN) according to the traffic rules. Illumination of the green light allows traffic to proceed in the direction denoted, Illumination of the yellow light denoting, if safe to do so, prepare to stop short of the intersection, and Illuminat ...

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Teddy nightlight multicolor using PIC16F84A microcontroller

Teddy nightlight multicolor A nice night light multicolor, ideal for baby's room. For the realization I used: - Out of a pack of bubble bath for children in the shape of teddy bear - a nightlight with positive economic pressure - Complete circuit with a PIC16F84A (I was at home, but you can use any programmable microcontroller) - LED multicolor I started preparing the teddy bear, all the markings on the pac ...

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Interfacing of PIC16F84A with DS1307 (RTC) code and Proteus simulation

This post provides the code for interfacing DS1307 RTC with PIC16F84A microcontroller. This DS1307 RTC has i2c based interface and PIC16F84A doesn't have any built in i2c modules, so software i2c module is created in the code. 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 ...

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How to use PIC16F84A pin as input (Code+Proteus simulation)

This post provides an example code to use PIC16F84A pins as inputs. After going through this example, you will understand how to make PIC16F84A pins as inputs and how to read their value in the code. 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 PI ...

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