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For discussion about the 4 Pin Ultrasonic Sensor library item.
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Rank: Advanced Member
Groups: BetaUser, Registered
Joined: 3/31/2015(UTC)
Posts: 47
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Hi;
I use a maxPulse setting of 5555, this is real close to 1 meter. My robot car is quite fast and being able to have a large range helps to avoid crashes (sometimes).
The one meter equates very well to the 0-1 of the output activation; 0.2 = 20 cm.
Remember to keep it as small as works for your project, without a response from the sensor this pulse time is equal to a delay in your program.
Mike
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Rank: Advanced Member
Groups: BetaUser, Registered
Joined: 3/31/2015(UTC)
Posts: 47
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Hi;
I also added a line to help with consistent behavior, I found that the output would go back to zero if no object was in range. This made for some fun experiments and hard crashes.
I just added this line before the output activation line in the code:
if(duration == 0) duration = maxPulse;
Mike
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