Trimmer Pot

Trimmer port is a variable resistor with 3-pin connection. It can be used to change the sensitivity of the comparator circuit to light. Simply use a screwdriver to change the sensitivity.

Relay

Relay is a very useful component to close and open a connection for low or high voltage application. 5-pin relay can control one connection only. 8-pin relay can control two connections to be closed or to be opened.

PCB

PCB or printed circuit board consists of electronics component, copper track and PCB material. The circuit on the PCB can be drawn using PCB software such as Protel, ExpressPCB and so on.

 

Microcontroller

What is a Microcontroller?

Microcontroller Specification

Programming PIC16F877A

Playing with a C Programming and PIC16F877A

Creating a Digital Clock using PIC16F877A, LCD and DS1337 Clock IC from Dallas

How to Load Hex File into PIC16F877A

 

Articles :

Lightning Surge Testing

Bit Error Rate Testing

Insertion Loss Testing

 

Light Emitting Diode

DC Power Jack

Voltage Regulator and Diode

Transistor and Operational Amplifier

Trimmer Pot, Relay and PCB

 

Understanding PIC16F877A

Product Development Using PIC16F877A

More Product Development Using PIC16F877A

PIC16F877A Input Output Overview

Interfacing PIC16F877A With LCD

 

VoIP Basic

VoIP Phone

Using VoIP Through Normal PSTN Telephone

What is Codec?