'Almost No Parts' 12/24hrs LED Clock

Charlieplexing 7-segment LED display.
Also known as "Multiplexing", here is a method how to control eight 7-segment displays using only 9 microcontroller ports. (August 20, 2009)
Categories: microcontroller howto - Updated: 2009/08/20

7-Segment ASCII character Set

How to get 1 Second with Microcontrollers.
Roman Black's source code improved and updated. Here is how to implement 1-second timebase for microcontrollers projects. (August 12, 2009)
Categories: microcontroller howto - Updated: 2009/08/12

Microcontroller 16F84A obsolete?
There is no doubt that the 16C84, the 16F84, and the 16F84A are all outstanding microcontrollers, but are you ready to move on? (August 10, 2009)
Categories: microcontroller - Updated: 2009/08/10

LED chaser using PIC 16F84A
A simple LED chaser with 8 LEDs and the PIC microcontroller 16F84A. Hex file and source code included. (August 10, 2009)
Categories: microcontroller circuits - Updated: 2009/08/10

Matrix Led Display.
A mini display using an array de 5x24 LEDs using Microchip PIC 16F628. (10/14/2004)
Categories: microcontroller diy electronics - Updated: 2009/07/25

Led Clock
12Hr Led clock using 16F84 or 16F628. Also, schematic to build a Jumbo clock is included. (6/05/2004)
16F84 version have a problem, pending to be fixed. Updated! (9/6/2006)
Categories: microcontroller circuits diy - Updated: 2009/07/25

Led Chaser II
Led Chaser Version 2, Improved. Use it as "Led chaser" or "Third Brake Light". (1/30/2005)
Categories: microcontroller circuits automobile - Updated: 2009/07/25

LCD Clock/Calendar
LCD Display with Date and Time, 12hr format. (12/12/2004)
Categories: microcontroller circuits diy - Updated: 2009/07/25

INSIDER V1.0
In-Circuit debugger, created by E.E. Atanasios Melimopoulos. Updated Ver 1r1 (3/20/2009)
Categories: microcontroller hacks electronics from_readers - Updated: 2009/07/25

Water Level Control/Monitor.
A simple way to control the level of any liquid in any container. (05/20/2004)
Categories: diy circuits microcontroller - Updated: 2009/07/24

Tachometer/RPM II.
This is an improved version of the Tachometer created specially to measure up to 9,999 RPM. Uses a PIC 16F628. (04/24/2006)
Categories: microcontroller circuits automobile homemade - Updated: 2009/07/24

Tachometer/RPM.
Easy to build using only a few components. With some modifications, it can be used in an automobile. This Tachometer uses a PIC 16F628.(06/12/2004)
Categories: microcontroller circuits automobile homemade - Updated: 2009/07/24

Soundmeter
A simple soundmeter using the PIC 16F628 or 16F84 (5/20/2006)
Categories: microcontroller circuits audio - Updated: 2009/07/24

Security Keypad II
An improved version that can be used on security vaults, Doors with electric latches, Alarms, Safety devices and many other uses. It uses an HITACHI LCD (16x1 or 8x1) and a matrix keypad. The HEX code is available for 16F84A and 16F628. (5/27/2006)
Categories: microcontroller circuits diy - Updated: 2009/07/24

Security Keypad.
This Electronic Code Lock uses a 12-keys keypad is used to enter a password and open an electrick lock or any other device with a signal. Uses an 8-pin PIC 12F629. (11/17/2004)
Categories: microcontroller circuits diy - Updated: 2009/07/24

Traffic Light.
A two-way Traffic light using a PIC 12F629. As bonus, a traffic light that doesn't use a PIC is included. (05/13/2004)
Categories: microcontroller circuits homemade automobile - Updated: 2009/07/24

Led Chaser.
A sequential light chaser using the PIC 12F629. (04/21/2004)
Categories: automobile diy microcontroller homemade - Updated: 2009/07/24

How To Control Multiple Leds
Multiplexing the I/O ports, you can control many leds using a few ports. Improved! (5/21/2006)
Categories: microcontroller electronics howto - Updated: 2009/07/24

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