March 11, 2011
about 4 years ago
I echo the sentiment of having the Stackable Headers included - the trouble I had to go to find some from hobby shops is much more than the couple dollars to include them.
You have to connect HVGND to GND for there to be a return path through the Triac for the control current. Why it allows one wire only when not GND-HVGND is beyond me, it shouldn’t allow any wires.
Anyway, I use a 12v inverter (100m capable) with its own mains supply, used a 9vdv plugpack on the Arduino, joined HVGND to GND and I can turn all wires on, flash them all at the same time, turn on one/two/three/four etc no problems. Works perfectly.
Hope this helps.
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