Tehnik Service

Special Day

26.11.2008 Is a very special day for me. I became a father to a beautiful princess .Beside that www.tehnikservice.net is celebrating its first (1) birthday.

Here is a circuit for using the printer port of a PC, for control application using software and some interface hardware. The interface circuit along with the given software can be used with the printer port of any PC for controlling up to eight equipment .
The interface [...]

Leds Resistor Calculator

Download: Leds Resistor Calculator

AVR ISP Serial Programmer

Source: SiliconChip

Simple Audio Surround Decoder

Shortwave Converters for Scanners

Speed Fan Controller

Electronic Fish Lure

3 Input Mixer

Mini Megaphone

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10 Channel Chaser for 12V/60W lamps with PIC16F628A

This project allows instant start sequentially but a dozen low-voltage lamps 12 V / 60 W, and makes them fade and always sequentially (but slower). This system has been designed to meet the demand of a visitor who wanted ten recessed low voltage spot in a driveway to his house, with the following function: – [...]

Battery Level Indicator

This circuit allows switching on a LED when the battery voltage (12V) drops below a certain threshold. The operating system is based on a comparison of tension, which comes in a zener diode. If the supply voltage is 12V and the zener diode is a 10V model (this is the case in the diagram), we [...]

Timer from 1 to 999s with PIC16F84A

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 [...]

8 LED VU Meter Project

A VU meter is often included in audio equipment to display a signal level in Volume Units; the device is sometimes also called volume indicator (VI). In this project we are building a basic and low cost LED VU Metre circuit . The extent (range) display is -18 dBu to +3 dBu, spread over [...]

12 Channel LED Chaser with PIC16F84A

Today we have a new category “Projects” and a new electronic project 12 Channel LED Chaser with PIC16F84A.
This project is based on the popular PIC16f84A micro-controller.The heart of this project LED chaser is the PIC16F84A PIC microcontroller.A 4MHz crystal and capacitors C1 and C2 22pf is used for providing clock pulses to the micro-controller. The [...]

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Tehnik Service blog launched in 2007. This blog is built for educational purpose to help you to be informed about all the news come from around the world in the field of electronics.