Simple solenoid control

Can I use a solenoid without a transistor. One solenoid pin will be connected to 12V and the other pin to the MCU. When the pin connected to the MCU turns, ground, it will activate the solenoid and when switched to high, there is no path for electricity to move and offs the solenoid. Using a diode.

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michaelwylie over 11 years ago +2

The answer is no, for so many reasons, but the most important is that you will definitely, most likely, inevitably destroy at least that one pin if not the entire microcontroller.

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0 kidiccurus over 11 years ago

Hmm, I would be careful doing that as I have a feeling the MCU might not be able to source enough current. Maybe one or 2 mill be OK if you are lucky, but I am not an expert on solenoids so do some extra reaserch before you try anything.
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0 kidiccurus over 11 years ago

Hmm, I would be careful doing that as I have a feeling the MCU might not be able to source enough current. Maybe one or 2 mill be OK if you are lucky, but I am not an expert on solenoids so do some extra reaserch before you try anything.
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