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With libraries it is easy to use, but it would be great if there would be documentation on this on connecting (after all arduino library does all for you, you just connect to digitals)
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Appears to work well, but the columns and rows are not labeled, so you'll have to do some testing to figure out which is which. For mine, the pinout (when looking at the number plate from left to right) is: C2, R1, C1, R4, C3, R3, R2, with the outermost pins being unused. Picture included, but ignore my arduino pins. This is different from the other 4x3 matrix keypads that I found, but it works. Not sure on durability, yet, but the buttons all work at the moment.
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The pin outs do NOT follow the standard pin outs. Also the resistance of each switch varies greatly. After a long time testing and getting the proper library and changing the pins it did work. I would not recommend this.
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All is in working right and a great working order
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Love the finish and design. And, naturally, love the prize! Very good knockoff of the Adafruit keypads. Recommended.
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nice
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muito bom
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