What purpose does a resistor serve?

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Marz Fisch

Joined Dec 26, 2015
9
What purpose does a resistor serve, and how do I calculate the needs of a resistor for a particular project?

I am new to circuitry, and I am designing a wonderful product for blind dogs. I have found an investor, but he wants me to design the prototype before he pays for the patent.

Any help would be greatly appreciated, I will be posting a handful of other questions regarding the assembly of my prototype circuit.

Marshall
 

bertus

Joined Apr 5, 2008
22,266
Hello,

Without knowing the circuit, we can not give you any advice.
What is your intention?
Why open 3 threads with greatly the same content?

Bertus
 

Thread Starter

Marz Fisch

Joined Dec 26, 2015
9
Bertus, I only pasted a particular piece of information to explain my intentions... My questions all all different! I am designing a dog ball that produces noise for 120 seconds and then stops. Its for my blind dog. I will attach a picture of the circuit diagram that I am basing my design around, with only a few minor changes.

Marshall
 

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