Hi Martin

Just did a quick test, not much time. Downloaded and set Prescaler 1:4

Measured (cm) / Read (cm)
162 / 160
187 / 180
213 / 211

Looking very good so far...

I'll do some more tests later but things seem sorted now.

Thanks again.

Hi Martin

Thanks for that. I'll try as soon as I can and get back to you.

Regards

Hi

The 509 only has a few dozen bytes of RAM, but should work none the less.

Worth trying on v7/9 and I've earlier versions too that I can try, but not until later.

Regards

Hi Martin

I thought that too but also noticed another strange thing. If you add in IntOsc Helper it informs that there isn't an option for such despite it being a feature of that chip.

Regards

PS
Agree that it would be better to use a newer chip if available

Hi

Still there.


Regards

Hi So hot up in the Ivory Tower that I ddn't need an iron to melt the solder.... Put together that little noise generator and have to say the quality of the kit is very good. Once complete I connected to a scope. 100_0240.JPG Bear in mind I only paid a few pounds.... Next will be to create some filt...

Hi

My view is it is Interrupt on Change, any change, therefore it is up to you how you handle the response.

Does the datasheet specifically state that you can mask IOC to suit your specific needs? I'm not an expert on that chip but I do remember Int0/1 can be masked.

Hope this helps.

Regards

Hi I'm not an expert on UNO. Int0 and Int1 can be selected to trigger on various "edges" as documented in the interrupt properties. IOC on the remaining ports do set a flag (green) which indicates a trigger on both edges (Interrupt On Change). If you set pins, close and reopen the window you will se...

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

Hi Following on from the above. This time I used the same setup as documented in the above posts but using software mode with the following results Measured (cm) / Displayed (cm) / Pulse Width (mS) 109 / 78 / 6.27462 120 / 86 / 6.9197 140 / 100 / 8.0691 144 / 103 / 8.32248 162 / 116 / 9.3676 I have ...