Thread: roboRio limited to 8 Analog Inputs
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Unread 09-02-2015, 00:10
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Dale Dale is offline
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Re: roboRio limited to 8 Analog Inputs
An analog multiplexer might be all you need. These are available in chip form or this handy breakout board for $4.95 from Sparkfun https://www.sparkfun.com/products/9056

You just select the line you want to monitor using a digital address from your DIO and then the multiplexer acts like a really fast rotary switch to select that line which you'd feed into one of your analog inputs.

This one from Sparkfun switches in nano seconds so your ability to monitor multiple channels is likely limited by what the RoboRIO can deal with.

This particular chip/breakout board gives you 16 channels.
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Last edited by Dale : 09-02-2015 at 00:13.
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