Questions tagged [keypad]
218 questions
0
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1 answer
Auto switch to numeric keypad on wm 6.5
I'm developing a software for a mobile device (Motorola ES400) with C#. Here I'm using the default wm-SIP and I don't want to change that.
There are some textboxes the user has to fill in.
My problem is, when he enters a textbox, where he should…
abc
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iOS how to catch event of switching standard keyboard type to number keypad?
When switching to number keypad, I want to use my custom number keypad.
How to realize this function?
Apple don't give any APIs about this?
Thank you.
Smeegol
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Adding a Custom keyboard to a textfield
I need to figure out how to add a custom keypad to a textfield. What I really need is a decimal point and and add button along with the normal numbers and done button.
Any clues anyone?
Thanks
Scubadivingfool
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1 answer
Using CD74HC4067 16-Channel Analog Multiplexer Demultiplexer is not working as expected
I am working on a project that needs multiple digital signals and I am considering the CD74HC4067 (on a break-board) to work as a multiplexer. More specifically i am trying to build a keypad with multiple ttp123 break-boards. Each ttp123 signal is…
thermike
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Displaying the input from keypad on a LCD screen using Arduino
I want an Arduino code to give the output in following format on LCD display
If the user click 'A', 1, 2, 3 from the keypad, LCD should display Hi:1,2,3,
This is what I have tried but I cannot figure out a way to build the code as I am a beginner in…
python_coder
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1 answer
Arduino stops working after being just minutes in use
When I run this code on my arduino nano for some reason after a while it seems to halt. I've tried booting it and waiting 5 minutes but that doesn't seem to freeze it yet.
Does anyone know if perhaps the waitforkey() could stop the processor from…
KevinPV
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2 answers
Convert if statements to for loop?
I've written a function in mikroC that scan the pressed key in a 4x4 keypad
void scan_key()
{
PORTB = 0B11111110;
if ( PORTB == 0b11101110){
Row = 1;
Column = 1;
return;
}
if ( PORTB == 0b11011110){
…
Eng.Fouad
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1 answer
Using the numeric keypad for edited shortcuts in jupyter notebook
I have edited my shortcuts in Jupyter Notebook.
One of the shortcuts I created was '0,0,0'.
When I am in command mode the shortcut '0,0,0' works fine...But it only works if I use the keyboard numbers. When I try to type '0,0,0' using the zeroes on…
rdavid
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1 answer
read reed switch at the same time on arduino
I want to control the 3x3 reed switch at the same time. This my sketch.
enter image description here
and my Arduino code is like this;
const byte rows = 3;
const byte cols = 3;
byte rowPins[rows] = {3, 4, 5};
byte colPins[cols] = {7, 8, 9};
char…
Daniel
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votes
2 answers
(Arduino Mega2560) Keypad password check
I am working on a school project, basically I have to create a lock system that opens a fictive gate when the correct code is entered. We have been asked to simulate our system before actually building it. So, I made the following circuit in…
Arxkz
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votes
1 answer
Add two Buttons to the Soft Keyboard
I am able to add a done button to soft keyboard but I also want to add a Del Button is this possible if yes please tell me how ?
Chunhua
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1 answer
How to accept input from user after alarm is triggered
So as of right now when I arm the system and move my hand in front of the PIR sensor it says system triggered how do i get it to take a password from the user to deactivate the system. Also when the system is deactive it should say on the screen…
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need help to create custom keypad INSIDE a dialogFragment. do not want system keyboard to pop out
i have created an XML and dialog fragment consist of Edittext and numeric buttons (keypad). i had searched alot but only found creating custom softkey solutions. my objective is very simple. i already had all the buttons created in XML. what should…
Eric Ong
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1 answer
In this code you have a code for the door and a keypad for it
I have a door and there's a keypad code for it. If you get the code right you say Correct, if you get it wrong it just prints the wrong code (Just for debugging). However, I don't understand why nothing's happening when I code it. This is python…
Julian Deery
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3 answers
Count number's digits following by line
I have the number 444333113333 and I want to count every different digit in this number.
4 is 3 times
3 is 3 times
1 is 2 times
3 is 4 times
What I am trying to do is make a script that translates phone keypad taps to letters
like in this photo…
JimChr - R4GN4R
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