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Re: Need help with 873M ultrasonic sensor
Last year's rules allowed a custom circuit to be powered from a PCM port. The PCM may be configured to provide 24V. If you are not using pneumatics, or are using 24V solenoid valves, this may be an alternative, provided the rules don't change. Otherwise, I'd recommend a COTS DC supply to give you the voltage boost - you can do this for much less than the cost of a PCM.
As it outputs analog 0-10V, it looks like you will need a voltage divider (that is, two resistors in series from the sensor output to ground, with the output being between the resistors) to get the output analog level to the level of the roboRIO analog inputs. Unless you have time to work with this a bit before build season, it is probably better to put this on the back shelf to deal with after competition, for next year; if you need an ultrasonic sensor, there are quite inexpensive ones available at robotshop.com and a host of other suppliers. If you want short range (< 1 ft), infrared is usually an easier find than ultrasonic.
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Last edited by GeeTwo : 20-12-2016 at 07:39.
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