PIC16F877a
PIN DIAGRAM
Saturday, 25 February 2012
Week 5 : MICROCONTROLLER
There are many types of micro controllers in the market. The one that we will be using in for our projectt is PIC 16F877a. Microcontrollers contain all the the components required for a processor system in one chip : a CPU, memory and I/O. A complete system can therefore be built using one MCU chip and a few I/O devices such as a keypad, display and other interfacing circuits. We will now see how this is done in practice in our typical microcontroller.
PIC16F877a
PIN DIAGRAM
PIC16F877a
PIN DIAGRAM
Saturday, 11 February 2012
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.
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.
Saturday, 4 February 2012
Week 3 : JALAN PASAR, KL
For this particular my partner and I went to Jalan Pasar. Jalan Pasar is situated in the heart of Kuala Lumpur. to be precise, it is situated near Pudu. Why must we went to Jalan Pasar? Jalan Pasar is a street famous among electrical and electronics components sellers and buyer. There is a lot of shops selling electrical and electronic components. My partner and I planned to buy all the component needed to construct our project.
COMPONENTS LIST
ADDITIONAL COMPONENTS THAT NEEDED TO BUY
- Temperature sensor
- Microcontroller
After spending some time there, we finished up with our component purchases.
COMPONENTS THAT WERE BOUGHT
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