This instructables will guide you to connect the 4*4 or 4*3 keypad to arduino and get the intiger value of which you have pressed the keys
for making this you will need following parts and component:
1) Arduino uno or any other board
2)usb cable to connect arduino uno
3)4*4 or 4*3 keypad which is as shown in image
4)8 or 7 no. of male to male jumper wire.
Following software/programme is needed:
Arduino software - i have used 1.6.8
Keypad library http://playground.arduino.cc/uploads/Code/keypad.z...
extract the file and copy the keypad folder to arduino's library folder path or grab files from this instructables.
and finally you need my code , just get it from this instructables
Step 1: Connection
connect keypad's R0---to--- A0 PIN of arduino
by using male to male jumper wire connect keypad to Arduino
Connect usb cable to arduino .
Step 2: Now Get Ready to Programme
now upload the code keypad_final.ino to your arduino board
and open the serial moniter and see the results.
oila it's done.
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