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16 x 16 LED Dot-Matrix w/ Dupont Cables / Pin Headers for Arduino - Red
Supply Voltage: DC 5V; Principle: Each row consists of 4~16 decoders by two 74HC138 + transistor drive; Each column cascade driven by the two 74HC59; LED in cross point will light on if row output high level and column output low level; Compatible w/ LCD12864 interfaces£¬ plug and play.