Flowcode Support Board

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.

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

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

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

kiroshia wrote: ↑

Sun May 19, 2024 8:27 pm

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.