The keypad tag has no wiki summary.
-3
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1answer
200 views
Arduino 3 digit LCD calculator
We would like to build a calculator using Arduino which uses 3 digit LCD and a keypad similar to digital phones. (# for plus , * for minus) Which components and way is good enough to not to run out of ...
2
votes
3answers
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Which schematic is better for keypad connection to an MCU?
I have this three keypad connection sketches, all of which i've seen in various application, and some i've also used, but i want to know if there is any advantage of one over the other.
The keypad ...
2
votes
1answer
139 views
Information on this keypad
I receieved this 4x4 keypad in an electronics kit, but don't know what the pins (it has 2x5 pins), are, and can't seem to find a data sheet for it.
Any info or help is appreciated!
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0answers
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What is the best bluetooth shield for the arduino mega?
I am currently building an electronic keypad door lock that I want my smart phone to be able to pair up with and open it for me. I will be using an Arduino Mega 2560 and I was wondering what the best ...
3
votes
2answers
568 views
Interfacing a keypad with a microcontroller
I am using a PIC16F877A, running at 20 MHz.
I have two paralleled, 3 columns, 4 rows keypad. My setup is as follows:
KR1 to KR4 are rows, KC1 to KC3 are columns, and they all go to the ...
