In this video explained how to find the unknown resistor value by using Arduino Uno.
We find it difficult to read color codes on resistors to find its resistance. In order to overcome the difficulty of finding the resistance value, we are going to build a simple Ohm Meter using Arduino. The basic principle behind this project is a Voltage Divider Network. The value of the unknown resistance is displayed on 16*2 LCD display. This project also serves as 16*2 LCD display interfacing with Arduino
Components Required:
Arduino Uno
16*2 LCD display
Potentiometer (1 kilo Ohm)
Resistors
Breadboard
Jumper wires
Arduino Uno is a open source microcontroller board based on ATmega328p microcontroller. It has 14 digital pins (out of which 6 pins can be used as PWM outputs), 6 analog inputs, on board voltage regulators etc. Arduino Uno has 32KB of flash memory, 2KB of SRAM and 1KB of EEPROM. It operates at the clock frequency of 16MHz. Arduino Uno supports Serial , I2C , SPI communication for communicating with other devices. The table below shows the technical specification of Arduino Uno.
Concept of Resistance Color Code:
To identify the value of the resistance we can use the below formula.
R= { (AB*10c)Ω ± T% }
Where
A = Value of the color in the first band.
B = Value of the color in the second band.
C = Value of the color in the third band.
T = Value of the color in the fourth band.
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This blog aims to create easily comprehensible technology videos in Tamil, providing the latest tech updates in the language. It covers a range of topics, including electronics projects, apps, and software tips.
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