Thread: Parallax and Maxbotix ultrasonic sensors
View Single Post
  #3   Spotlight this post!  
Unread 21-01-2008, 10:41
Phalanx's Avatar
Phalanx Phalanx is offline
Formerly Team 1089 (Mercury)
AKA: Michael Reffler
FRC #5431 (Titan Robotics)
Team Role: Mentor
  
Join Date: Jun 2005
Rookie Year: 1999
Location: Lewisville, TX (previously NJ)
Posts: 384
Phalanx has a reputation beyond reputePhalanx has a reputation beyond reputePhalanx has a reputation beyond reputePhalanx has a reputation beyond reputePhalanx has a reputation beyond reputePhalanx has a reputation beyond reputePhalanx has a reputation beyond reputePhalanx has a reputation beyond reputePhalanx has a reputation beyond reputePhalanx has a reputation beyond reputePhalanx has a reputation beyond repute
Re: Parallax and Maxbotix ultrasonic sensors
We used the Maxbotics EZ-1 last season using analog with good results.

The formula we used:
Mv =( (adc * 5000) / 1024 )
Inches = Mv / 10
Gave use the distance in inches for the version that used 10mV per inch.

It was changed from 10mV to 9.8mV
So in your case you might want to try:
Mv =( (adc * 5000) / 1024 )
Inches = Mv * 10 / 98
__________________
Don't just ask the experts, become one!
Leadership is not about ability. It's about responsibility!
Diagonally Parked in a Parallel Universe. It's okay we do Quantum Physics