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Wheels and Sonic Finder turn to left when car is powered on.

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Post time 2019-2-7 04:22:51 | Show all posts |Read mode
I have assembled my car and uploaded the arduino code.  When I power on the car, the wheel servo and sonic rangefind serve both turn all the way to the left and hold there.  The car does not respond to imput from the remote.  I have checked all connections between the boards but no luck.  The LED2 light on the controller is on but not the LED1 light so there is no connection.
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 Author| Post time 2019-2-7 22:51:41 | Show all posts
A little additional information...The UNO R3 board is getting very warm/hot in the spot right beside the power adapter port.
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Post time 2019-2-12 14:34:08 | Show all posts

Please refer to the following problem-solving video
https://youtu.be/dyG6Ef_HIMA
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Post time 2019-2-12 14:36:05 | Show all posts
1549478887 replied at 2019-2-7 10:51 PM
A little additional information...The UNO R3 board is getting very warm/hot in the spot right beside ...

It should be the place where the circuit connection is wrong. Check carefully which part of the wiring is wrong.
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