Search found 7 matches

by tonyc
Wed May 15, 2013 12:53 pm
Forum: Geiger Counter
Topic: Interfacing with Arduino Uno R3
Replies: 11
Views: 26410

Re: Interfacing with Arduino Uno R3

FYI...Here is a 4 part video on an Arduino Geiger Counter Shield which can work with several types of Geiger tubes...
http://www.youtube.com/watch?v=haHRm7Uvi28

Regards,
Tony
by tonyc
Fri Feb 01, 2013 11:22 am
Forum: Geiger Counter
Topic: Can the Counter run on 5V instead of 3v?
Replies: 8
Views: 12854

Re: Can the Counter run on 5V instead of 3v?

I would not worry about the LED resistor, just leave as is for both voltages, or compromise and use a 220 ohm.

The jumper for R6 is a good idea!

-Tony
by tonyc
Sun Jan 27, 2013 3:07 pm
Forum: Geiger Counter
Topic: Can the Counter run on 5V instead of 3v?
Replies: 8
Views: 12854

Re: Can the Counter run on 5V instead of 3v?

Follow this post to see the mod and the Arduino sketch for adding an LCD with the Arduino Uno

viewtopic.php?f=15&t=3431

-Tony
by tonyc
Sun Jan 27, 2013 3:01 pm
Forum: Geiger Counter
Topic: Interfacing with Arduino Uno R3
Replies: 11
Views: 26410

Re: Interfacing with Arduino Uno R3

This post will provide a good starting point for adding an LCD display (using Arduino Uno and a typical 16x2 LCD). I have made a minor hardware mod to the Geiger Counter board, according to Jeff. This will allow the geiger board to operate on 5 volts instead of 3 volts, which will make the serial ou...
by tonyc
Sat Jan 26, 2013 11:23 am
Forum: Geiger Counter
Topic: Interfacing with Arduino Uno R3
Replies: 11
Views: 26410

Re: Interfacing with Arduino Uno R3

See this post, should get you going...

viewtopic.php?f=15&t=3437

-Tony
by tonyc
Sat Jan 26, 2013 11:18 am
Forum: Geiger Counter
Topic: Can the Counter run on 5V instead of 3v?
Replies: 8
Views: 12854

Re: Can the Counter run on 5V instead of 3v?

Hi Jeff, Yes, changing the resisors worked fine. I noticed with the original R6 of 330 ohms, the pulse duty cycle was close to 50% at 3v. With the R6 change to 1K and 5v the pulse duty cycle was around 30%, but at 5v instead of 3v. With this mod no level translators are required and I can feed the o...
by tonyc
Tue Jan 15, 2013 1:36 pm
Forum: Geiger Counter
Topic: Can the Counter run on 5V instead of 3v?
Replies: 8
Views: 12854

Can the Counter run on 5V instead of 3v?

Hi,

Can I use 5v with the gieger counter kit so the output of the AVR serial port will be 5v instead of 3v?

Thanks,
Tony

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