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Difference between revisions of "Hack-o-mat"
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update about needing better optoisolated triacs
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(update about needing better optoisolated triacs) |
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http://www.mouser.com/ds/2/239/MOC302-201763.pdf | http://www.mouser.com/ds/2/239/MOC302-201763.pdf | ||
UPDATE: the above part doesn't flow enough current, and works to run a motor exactly one time before going up in smoke. I found more powerful 6-pin DIP optoisolated triacs at digikey years ago and bought them, but now i can't find them - in real life or on the digikey site. So we're searching again for parts that can take 2 or more amps when the motors start up. | |||
their inputs are basically LEDs, and they're totally isolated from the AC output. So we can charlieplex these 40 triacs to just seven GPIO pins from our controller, as long as it has three-state outputs. | their inputs are basically LEDs, and they're totally isolated from the AC output. So we can charlieplex these 40 triacs to just seven GPIO pins from our controller, as long as it has three-state outputs. | ||