Measure Resistor By Using Softwave

[siekiam]

Dear all,

The purpose of the project is to check the value of a resistor. since the resistor have 10 colour and with different value, its hard to memories by some user. so, i wish to develope a softwave to helping this type of user whos hard to memories the resistor colour code.

But unfortunately, i don't know what's softwave is most suitable to use in this purposed project.

Anyone could give me some suggestion and idea how to develope this project.

How to hear from you all soon.

Thanks.
Siekiam

 

[Venkata Krishna]

Connect two resistors in series one of which is unknown and the other is unit resistance. Across unity resistanc connect FET circuit and ADC, so that the analog voltage is converted to digital and get that data from the parallel port of computer. Write and c program which calculates resistance as follows
Voltage connected to the circuit is predefined.
so Resistace=(V-voltage across unity)/(numerically voltage acorss untiy).

 

[alzomor]

Hi

Why do more when you could do less?

just make a GUI and let the user select the resistor marking no of bands "How many color rings arround the risistor"
then let the user enter the colors in order from silver or gold color ring

then calculate the resistance .

And display it to the user.

a program to be completed in 15 min if you know ang programming language

Salam
Hossam Alzomor
www.i-g.org

 

[btbass]

If you want to measure a resistor, the common way is to have a constant current generator and measure the voltage across the resistor.
R = V/I