MightyOhm.com

hello everybody.

i have two questions.
1. i want to use geiger board with arduino. So do i have to use attiny 2313, is there any problem when connect TP1 pin to arduino directly.


2. I couldn't find fjn3303f transistor. Is there any transistor which using fjn3303n places. If the answer no can anybody sell me on ebay.

Thank you for all my friends ...

What power supply do you plan to use for the geiger counter? Batteries or the Arduino 5V?

What country do you live in? The FJN3303 is available in the US. I'm not sure if it's available outside the US but Farnell may carry it.

İ want use arduino for power supply with 5 v if you have fjn3303 i can buy from you with ebay

hashosaf -

I do not sell parts on ebay, but there are several sources for the FJN3303F here: https://octopart.com/search?q=FJN3303F&start=0

This post has some instructions on how to connect the kit to Arduino: http://www.mightyohm.com/forum/viewtopi ... iger#p5730

The easiest way is to use the PULSE output (J6 pin 2) instead of TP1.