Schematic for the Matrix Display

Matrix Led Display.

A mini display using an array de 5x24 LEDs using Microchip PIC 16F628. (10/14/2004)
Category: microcontroller diy electronics - Updated: 2009/07/24
16f84 16c84 16f84a

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)
Category: microcontroller - Updated: 2009/08/10
JP6293E.gif

ON/OFF with Microcontrollers.

Here is a technique how to implement an ON/OFF button using microcontrollers. (11/22/2006)
Category: microcontroller howto - Updated: 2009/07/23
Microcontroller PIC 16F505

PIC 16F505

Some information about the new Microchip PIC 16F505. (10/12/2006)
Category: microcontroller circuits - Updated: 2009/07/23
led_chaser/kitt.gif

Led Chaser.

A sequential light chaser using the PIC 12F629. (04/21/2004)
Category: automobile diy microcontroller homemade - Updated: 2009/07/24
Microcontroller PIC microchip programmer. JDM compatible.

My PIC Programmer

An easy-to-build PIC programmer, based in the JDM. Uses the serial port. (10/24/2004)
Category: microcontroller circuits - Updated: 2009/07/23
jdm Pic Programmer

PIC Programmer sent by Fco. Arroyo.

Francisco Arroyo Garcia sent this schematic as an alternative to program MICROCHIP PICs. This programmer is a JDM-based and works fine to program the PIC 16F628A. (12/7/2006)
Category: microcontroller circuits - Updated: 2009/07/23
traffic light

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)
Category: microcontroller circuits homemade automobile - Updated: 2009/07/24
Security keypad using a 12F629

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)
Category: microcontroller circuits diy - Updated: 2009/07/23
security keypad key pad matrix keypad array safety keypad with LCD Hitachi Display.

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)
Category: microcontroller circuits diy - Updated: 2009/07/24
Sound Meter Schematic

Soundmeter

A simple soundmeter using the PIC 16F628 or 16F84 (5/20/2006)
Category: microcontroller circuits audio - Updated: 2009/07/24
Pinout information for the tachometer.

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)
Category: microcontroller circuits automobile homemade - Updated: 2009/07/24
Pinout information for the tachometer.

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)
Category: microcontroller circuits automobile homemade - Updated: 2014/03/02
motorcycle.jpg

Tachometer for Bikes (circuit).

Here are some instructions how to connect the Tachometer version II to a single cylinder. Thanks Firoz! (3/9/2007)
Category: microcontroller circuits automobile homemade - Updated: 2009/07/23
Timebase generator datasheet.

Timebase generator.

One Minute/One Second Pulse generator. Ideal to be used to build any clock. Uses a 12F629. (05/31/2004)
Category: microcontroller circuits diy - Updated: 2009/07/23

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