Quote:
Originally Posted by mechman600
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Actually...I will use opto-isolators to keep the 12V accessory side isolated from the 72V pack side that the Arduino will be in bed with. However, I do not know what their characteristics are compared to regular old transistors. Something tells me they take a lot more current to trigger/switch than transistors which take hardly anything. I may have to up the Arduino's juice with a transistor to trigger an opto-isolator. I must acquire one ASAP and do some playing.
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I believe the driven side of the opto is just a led.
So between 4 and 20mA normally.
Someone correct me if this is wrong.