Arduino to breadboard wiring

[dleligdon]

Working on my program for skeeball scoring. Hooked up all the jumpers from the Arduino to the breadboard and make shift switches. When I first started to monitor the program I would get random readings. After a little while I realized that when I tripped the switches by reaching around the Arduino the counting would work fine. When I would reach over the Arduino to activate the switches random scores would appear. Finally I determined that when I moved my hand over the jumpers scoring would appear.

At first I thought it was the program now I know its not. Comments as to why??

Thanks in advance, Dave

[dleligdon]

My photo would not pass security??

I’ll try again.

[LarryD]

Make sure you do not have floating inputs with your switch connection.
Add 10k pull down resistors and/or turn on pull-ups.

See schematic below for typical switch wiring.

[dleligdon]

Larry
Thanks for the information. I tried the built in “pull-up” resistor but it did not help. I’ll take good look at your diagram.
Dave

[LarryD]

We need to see your schematic.

Show us a good schematic & image of your circuit.
Posting images:
http://forum.arduino.cc/index.php?topic=519037.0

[dleligdon]

Heres Photo.

[LarryD]

Cannot see things clear enough as the image is blurry.

Show us a schematic.

Appears your switches go to +5v on a push, if so, you need 10k on each input to 0v.

.

[dleligdon]

Larry
Going to rewite using S3 switch mode. Ill send schematic when complete..
Thanks for your comments.
Dave

[ChrisTenone]

That is, by far, the easiest to wire! Just remember, that pressed is LOW.

[dleligdon]

Here’s my schematic for new switch arrangement.

For testing I am using “hard switches”. The skeeball game I built has IR sensors that required pull down resistors which I installed. When I started to test the program at home, I did not know about various switch types. We’ll see how this works out.

Working on industrial electrical controls my whole life always “pushed” a positive voltage. 5 volt systems are new to me.

Dave

[LarryD]

“Here's my schematic for new switch arrangement.”

Show us a ‘good’ schematic & image of your circuit wiring.
Posting images:
http://forum.arduino.cc/index.php?topic=519037.0

[dleligdon]

Larry
Read the instructions then reliazed I don’t have a right click on my I Pad. Over to my computer
Dave

[dleligdon]

Schematic I hope

That's not the photo I attached!!!!

[dleligdon]

Lets try this one.

Yea!!!

[dleligdon]

Wow!!!
Grounding the switches really works great.
Thanks for all your help. Next step is to get the display working.
Dave

[LarryD]

Good.

You are turning into an expert!

Check your top switch wiring