Matrix Keypad Issues Disturbance

[Danielrob306]

I am having issues setting up a matrix keypad using flowcode, I have wired up the columns and rows correctly and switched at the wiring multiple times but when I put my hand near my Arduino it starts reading random inputs and when I move it away it stops (this happens even when they keypad is not wired up, if I put my hand over the assigned ports) and also if I press the buttons on the keypad it doesn't do anything.
Here is my flowcode but I am sure that it is a problem caused by something else I have no idea how to fix.

(the loop in this code was just put to test reading the keypad inputs)
I would appreciate it if someone knows what is happening and could help me, I have two Arduino boards and have tried both, same issue.

[chipfryer27]

Hi

when I put my hand near my Arduino it starts reading random inputs

That sounds like the inputs are floating (unconnected, no weak pull-up / down) and when your hand goes near, the capacitive effect is causing the inputs to change.

I'd confirm your connections to start with.

Regards

[medelec35]

Hello.
If you look at Generic Keypad on the Wiki, it shows you how to wire up the keypad.

[kiroshia]

Thank you I how can I use pullup/pulldown when it is a keypad connection, where would I put them

[kersing]

Thank you I how can I use pullup/pulldown when it is a keypad connection, where would I put them

Have you checked the wiki link? It shows where to position the required resistors.