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JM09K Matrix Keypad Quirks

Some more details may be required for the JM09K Matrix Keypad. I spent far too long trying to find out what pins needed to be hooked up, as they are not the same as the matrix keypads used in some of the Arduino projects I found.

Luckily, I managed to find the datasheet (somehow) that enabled me to hook everything up correctly.

JM09K datasheet extract
JM09K datasheet extract

Here is how I have it hooked up. I do need to replace the wires I have soldered in with a header!

Fez Panda II hooked up to the JM09K
Fez Panda II hooked up to the JM09K
Published inC#NET Micro Framework

2 Comments

  1. STEVE STEVE

    CAN YOU TELL ME WHER YOU PURCHASED THE KEYPAD FROM ?

    • I think I bought it from Maplin. I think this one is pretty similar.

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