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Hi, I have a question about the $40 Line Follower circuit. In the picture you provided, you connected the joint of the two emitters of transistors to the track pin of the preset. But on the graphical diagram it show the connection of the joint of the two collectors of the transistor to the track pin of the preset. So, which one is correct?
1- I used L293NE instead of L293D. Does that matter?
2- I used 22k preset, instead of 20k preset. I could not find 20k preset. Is that OK?
3- I used 100uf 35v capacitor instead of 100uf 25v
6- I used a multimeter to check for any bad wiring and for the amount of voltage that is going into the motors.
hmmm I am new to these terms "needs external diodes to be added". So are you saying that my L293NE will not make my robot work?!! And what do you mean that I need an external diodes to be added, and where and how to be added?
As I am writing this, the battery is being charged for almost 6 hours, 7 more hours to go.
Datasheet is not provided with it. How do I get a datasheet for it?
I think that is because, as Soeren said to me on another thread, I was using 9v pp3 battery. I just bought a 9v NiMH battery with a charger. cost? about $8 for the battery and $16 for the charger. As I am writing this, the battery is being charged for almost 6 hours, 7 more hours to go.
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