8255 is general purpose programmable peripheral interface. It is used with many microprocessors and microcontrollers for various purposes. The device has three 8-bit ports port A, port B and port C. These ports can be used as input or output. These ports are further divided in to two groups A and B. Each group further…
LM35 Temperature Sensor Pin out, Interfacing guide, Circuit Construction and Working Principals
LM35 is a temperature sensor that outputs an analog signal which is proportional to the instantaneous temperature. The output voltage can easily be interpreted to obtain a temperature reading in Celsius. The advantage of lm35 over thermistor is it does not require any external calibration. The coating also protects it from self-heating. Low cost (approximately…
ADC0804 Analog to digital converter pin out and description
ADC0804 is an IC(integrated circuit) which converts the input analog voltage to its equivalent digital output. It is a stand alone analog to digital converter. Though now it is decades old and replaced by newer analog to digital converters which provide more flexibility, consumes less power, provides output in multiple formats and are smaller in…
Graphical lcd (128×64) Pin out, working and interface
In this tutorial I am going to teach you the working and pin out of 128×64 graphical lcd. There are lot of graphical lcds available in the market. Each perform exactly the same function with some variations. Some are small in size and some bigger. Some are black and white and some multicolored. Some perform few numbers…
Arduino Pro Mini
The Arduino Pro Mini is an ATmega168 based microcontroller board. The board comes with built-in arduino bootloader. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 8 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. The board can be connected to the PC using…