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Author Topic: Problems programming an arduino for a CO gas sensor  (Read 2365 times)
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Digital ouptut to HSW pin, digital input from ALR, power and ground.

What do you mean by what you wrote here?
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Sorry, that should have said "output to HSW"
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Sorry, I don't understand the "power and ground" thing.
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You need to connect a 5V supply (power) capable of supplying > 160mA, and you need to connect the ground pin on the sensor board to the ground (GND) on your Arduino.
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I see. Thanks.
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