4x4 Universial 16 Key Switch Keypad Keyboard For Arduino
|Price:||$4.17 & FREE Shipping|
- 8P DuPont head, pitch 2.54mm, can be inserted in the Pin connection circuit; Peel off the white sticker on the back of the keyboard can be securely affixed to the surface of the chassis
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|Package Height||0.4 x 3.5 x 6.2 inches|
|Shipping Weight||0.03 pounds|
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Top Customer Reviews
it doesn't come with any kind of pinout so it will require some googling and some multimeter testing to get the row and column pins identified.
Incidentally, the first four pins are the rows and the last for pins are the columns.
I wish it would have come with a female to male adapter so that I could plug it directly into a breadboard without a whole nest of jumper cables.
Also, keypads are more complicated than I realized so if I was an Arduino neophyte (I am), I'd buy some momentary switches instead.
It loses one star for lacking E and F, which would allow it to be used for hexadecimal entry, Also, there is a minor glitch in the adhesive that apparently created a wrinkle under the front label, but as I'm not the type to complain heavily about minor esthetics, I didn't dock another star. In addition, the lack of a data sheet meant a lot of tinkering as I learned which wires were which, and that took me over a week to figure out, since the ground placement didn't really make sense to me.
Even so, in spite of the few issues, it works well, and it's tough enough to stand up to the rough treatment my children can dish out.
It measures 2 1/4" wide by 3 1/16" tall and the 7/8" wide cable is attached to the back center bottom. If mounted to a rigid surface with a small slot cut in it the cable would not even be visible.
Most Recent Customer Reviews
This is exactly what I hoped for. It's very easy to hookup. Plugs right in to standard pin connector. Easy on - off switched reading.Published 1 month ago by D. Gilbreath
I still need to attach it to something, but even holding it in my hand it works very well. And was just what I was looking for. Read morePublished 6 months ago by Steve Renfrow