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 ...

Hi

Impressive stuff indeed.

I hope that's a screenshot from your Sinclair

Regards

Hi

Have you looked at the WiKi example?

Regards

Hi

You need to be a bit more specific in your requirement.

Android, Linux and Windows already have serial programs that can do such.

What is it you actually want it to do?

Regards

Hi Lab is in a bit of a state just now, in the process of a good clean out, getting rid of the "might come in handy" pile amongst a LOT of acquired useless junk. That's my "Ivory Tower" up in the clouds, i.e. the mezzanine floor I built to elevate my status :) Scopes / analysers / soldering / test e...

Hi Whenever I could squeeze in the time I've been working my way through the tutorials and decided I needed a "white noise" generator so that I can experiment with filters a bit better. Six weeks later I'm in possession of a Chinese generator. Now I knew it was a kit but must admit to being surprise...

Hi Following on. Picture of test rig with sensor pointing to floor. This reads 114cm on display / UART with pulse width of 6.628mS 100_0229.JPG 100_0230.JPG 100_0231.JPG 100_0234.JPG 114cm.jpg Next is at 140cm with a pulse width of 8.15506mS 100_0235.JPG 140-cm.jpg Now we read 1cm with a pulse width...

Hi

Or a long power cord to either battery or mains at ground level...?

Regards

Hi

Admittedly I'm not that up to speed with this, but couldn't you use one of those generic 32's that have onboard charging? Power via USB and if "mains" fails, battery takes over?

Regards