MightyOhm.com

What USB to serial adapter are you using? Can you describe your setup?

Does it help if you change the display mode to ASCII?

Can you post a screenshot of what you are seeing?

Joe,

Thanks for the feedback! Glad you are enjoying your kit. Sorry about the missing push button.

If anyone else is missing parts, please contact me - I can usually mail replacement parts within a day or two. I try to ensure all parts are included in every kit, but mistakes occasionally happen.

Very cool, thanks for sharing!

kin1988 - This forum is intended to support my DIY Geiger Counter kit: http://mightyohm.com/geiger If you purchase a kit I can provide better support. You might be dealing with an EMI problem - have you tried cleaning up your wiring and routing your multimeter lines far away from the Arduino? Withou...

I answered this question via email but also wanted to reply here. The cap is 1kV.

Earl -

Sorry for the late reply, I've been traveling these past few days.

The speaker is TDK PS1740P02E. Other piezo speakers with similar pin spacing (10mm) should also work!

Earl,

A piezo speaker should have been included in your kit. Where did you purchase the kit?

Hi Didi, Those gas lamp mantles are not always radioactive. In fact, in the US it has become hard to find the radioactive mantles since the 1990s. It sounds like your kit is working normally. The pot does not have much effect. Adjust it to about 1/3 to 1/2 way up the dial. See if you can find some o...