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Top 5 Positive Customer Reviews for matrix test
soldered, some spare LED left (shield uses 9 * 14 LED = 126 pieces, 7 are left) and all soldered in LED's work correct, means good quality. Compilation of LOLShield examples show some warnings but work on a Ardu Uno ... do not work on clones with clone cpu LGT8F328P. Good quality overall ... quick shipping, nice price, lot of LED's and fun
SAVE YOURSELF SOME TIME:. It works faster if you CUT THE LEADS OFF short, FIRST, then insert according to the flat spot on the LED and solder all at once. TEST ALL FIRST. A couple LEDs had flat spot on wrong side.