Week 4 : COMPONENTS REVIEW

Last week my partner and I already bought all components needed for our final year project. For this week I will explain about all components that we bought in general.

SWITCH


In electronics, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another.


DC POWER SOCKET ADAPTOR


An AC powered unregulated power supply usually uses a transformer to convert the voltage from the wall outlet (mains) to a different, nowadays usually lower, voltage. If it is used to produce DC, a rectifier is used to convert alternating voltage to a pulsating direct voltage, followed by a filter, comprising one or more capacitors, resistors, and sometimes inductors, to filter out (smooth) most of the pulsation. A small remaining unwanted alternating voltage component at mains or twice mains power frequency (depending upon whether half- or full-wave rectification is used)—ripple—is unavoidably superimposed on the direct output voltage.


LED INDICATOR


A light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. Introduced as a practical electronic component in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness.


LCD DISPLAY


A liquid crystal display (LCD) is a flat panel display, electronic visual display, or video display that uses the light modulating properties of liquid crystals (LCs). LCs do not emit light directly.


TEMPERATURE SENSOR


The diode is a temperature sensor. It is a pnp bipolar junction transistor whose base terminal is grounded externally and constant current is pumped through emitter which develops voltage across base emitter junction.


MICROCONTROLLER


The diode is a temperature sensor. It is a pnp bipolar junction transistor whose base terminal is grounded externally and constant current is pumped through emitter which develops voltage across base emitter junction.