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Unread 12/21/2017, 10:05 AM   #2555
SorsCode
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Join Date: Apr 2009
Location: St. Louis, MO
Posts: 132
Quote:
Originally Posted by ronnyking View Post
I'm having trouble with the ultrasonic sensor. Maybe I wired it incorrectly. Is is needed to connect the trigger with 5V in over a 3.3k Ohm resistor? I may have read the shematic wrong.
There is no resistor. What you are seeing is the resistor for the Temp Sensor. In the diagram the line is actually going over the connection for "Sonar Trigger". A "DOT" would be there if it was connected.


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