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 Every team should have a rule about not shouting "ROBOT!" when transporting a robot around the pits/arena. - frasnow [more] |
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| View Poll Results: Which method of revolution counting is the best? | |||
| Encoders |
  
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23 | 79.31% |
| Hall Effect Sensors |
  
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1 | 3.45% |
| Banner Optical Sensors |
  
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5 | 17.24% |
| Other (please explain) |
  
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0 | 0% |
| Voters: 29. You may not vote on this poll | |||
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#7
03-08-2005, 01:16
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Re: Encoders vs. Hall Effect vs. Banner Sensors
Has anyone checked out the VEX pamphlets lying around their local Radio Shack? According to the brochures, among the inexpensive new sensors coming out for their VEX robots wil be a 100 pulse/rev optical encoder(#276-2156) good for up to 1020 rpm, or about 1700 pulses/sec. While 100 ppr isn't great, it should be good for 1/8" resolution even on the fastest robots if geared correctly. At $20 for a pack of 2, they're certainly worth a look. They have some other interesting sensors (ultrasonic, line follower kit, etc.) as well. (No, I don't work there, but as a kid, all my paper route money ended up there!
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