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14 Nov 2013


This is a 7 segment clock displaying HH:MM:SS using PIC16F84A and 4017 digital IC. Complete source files are included.

PIC16F84A Digital Clock - [Link]

11 Feb 2013


This mini breakout board is designed to simplify prototyping and experimentation work with the popular 18-pin PIC16F series microcontrollers. It is small in size (1.95″ X 0.75″) and is breadboard friendly. It supports PIC16F84A, PIC16F628A, PIC16F88, PIC16F648A, PIC16F1827, PIC16F1847, and other 18-pin microcontrollers in the same series.

Mini breakout board for 18-pin PIC16F series microcontrollers - [Link]

17 Aug 2012

Breakout board for PIC16F628/88/1827/1847 microcontrollers

This is an improved version of my 18-pin PIC16F series breadboard module that I have used in many of my PIC tutorials and projects published in this website. The new version has got a +5V power supply regulator on-board and a 2.1mm female barrel jack for DC input from a wall adapter. The 18-pin PIC16F series microcontrollers are still very popular among hobbyists and beginners because of their compact size, low cost, and simplicity. The PIC16F1847 is the latest release in this series and is equipped with lot more peripherals and enhanced features than its predecessors. This breakout board will be helpful for rapid prototyping with the PIC16F1847 microcontroller. Since the predecessors of PIC16F1847 share the same pin configuration, this board can also be used with popular PIC16F84A, PIC16F628A, and PIC16F88 microcontrollers of the same series.

Breakout board for PIC16F1847 microcontroller - [Link]

30 Apr 2012

tehnikservice.net writes:

This is a good looking and practical device that can be useful in many areas where countdown timer is needed. This project is based on the PIC16F84A microcontroller. The time range can be adjusted between 1 and 999 seconds.   This project  has 3 buttons and one of them is named Set Button. In order to regulate the seconds up or down  on the display you should press the Set button while pressing the button on the  left or the right  hand side. The author of this project is @Pedja089. More photos on Facebook Fan Page.

Timer from 1 to 999s with PIC16F84A - [Link]

25 May 2011

sjm4306 writes:

I’ve finally gotten around to writing software SPI for two nokia 48×84 lcds (they were part of an old cell phone) that I found for a dollar each at a thrift store for my pic16f84a. I’ve posted my code (which is so simple that it could more or less be easily ported to any mcu). I have big plans for these lcds in the future (and even color ones when I get my hands on them). Enjoy.

Controlling a nokia5110 lcd with software SPI on a pic16f84a – [Link]


25 Jan 2011

This project is about interfacing a SNES controller and 16×2 LCD to a PIC16f84A to type out which buttons are pressed.

Interfacing a SNES controller and 16×2 LCD to the PIC16f84A – [Link]

15 Nov 2010

This project is a clock able to display time on the CRT tube of an oscilloscope. It uses a PIC16F84A and four resistors configured to work like a 2bit R-2R DAC. Bruno Gavand used both timing and Y axis controls to display the numeric values on the scope screen. It also has two push buttons, one for hours and one for minutes configuration. [via]

PicOClock: PIC16F84A Oscilloscope clock – [Link]

28 Oct 2010

This project is a small adjustable Digital clock and thermometer with thermostat based on PIC16F84A or PIC16F628 and DS1631 temperature sensor. The hardware is very simple because it uses a PIC microcontroller, a sensor, 4×7 segment common anode displays, 4 transistors and some resistors. Check schematic and source code on the link below.

PIC16F84A – PIC16F628 Digital Clock/Date/Thermometer with thermostat – [Link]

5 Sep 2010

This is a simple PIC16F84A programmer using only a few components. It programs pic16f84a and pic16c84 and connects to RS232.

PIC16F84A Programmer - [Link]

5 Sep 2010

This project is a simple thermometer based on PIC16F84A and DS18B20 temperature sensor. It uses just a few components. The range of temperature sensor is -55 to 125°C. Check schematic and code on the link below.

PIC16F84A Thermometer - [Link]





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