Someone passed me a Tachometer to test. So I got a code from the web and modified it to suit my needs. Then I wanted to test it but could not as the infrared sensors were not workings. I would go to the lab tomorrow and use the multimeter to find out where the problem lies.
I really wish to learn how to build the tachometer myself. I should also buy a screwdriver. Had to improvise by using cutting out a small piece of a can.
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