Question about serial

I have a mightyohm geiger counter board. It has serial out. (3.3v, 9600 baud)

It says I can communicate with a PC with an FTDI cable. But what if I wanted to read the output with an arduino? Is that possible?

Are two of the pins RX and TX so I can run those to the TX and RX on the arduino (tx to rx, and rx to tx) so that I could start serial at 9600 baud and read the output of the board? I know FTDI is basically serial to usb, but I figured serial is always two communication pins, but with the serial out pin having 6 pins on this geiger counter board, I wasn't sure.

Thanks, and pardon my noobishness.

MightyOhm geiger counter : Geiger Counter | MightyOhm
It contains a ATtiny2313, that's also a AVR microcontroller.
It's open source hardware, I like it!

Sure you can connect RX-TX and TX-RX to an Arduino, but there is a voltage problem.
Suppose two NiMH batteries are used. The voltage Vcc will be 2.4V.
The ATtiny2313 will work with 2.7V (normal version) or 1.8V ('V' version).
In the photo, I see a 'V' version.

So you have to adapt the RX TX voltages. With a ic or with transistors.

Krodal:
MightyOhm geiger counter : Geiger Counter | MightyOhm
It contains a ATtiny2313, that's also a AVR microcontroller.
It's open source hardware, I like it!

Sure you can connect RX-TX and TX-RX to an Arduino, but there is a voltage problem.
Suppose two NiMH batteries are used. The voltage Vcc will be 2.4V.
The ATtiny2313 will work with 2.7V (normal version) or 1.8V ('V' version).
In the photo, I see a 'V' version.

So you have to adapt the RX TX voltages. With a ic or with transistors.

well i figured since my arduino runs at 5v and that geiger counter's serial runs at 3v (according to their website saying you need a 3v ftdi), i would need a logic level converter. (i assume, but don't know for sure lol, would that work?)

my question though, is that my arduino has two pins for serial. tx and rx. the geiger counter has six pins. are two of those pins tx and rx, to where i could just hook right up to those?

Yes, and Yes.
Click "Design Files".
Click "Schematic (PNG)", or use the Eagle files in "geiger_design_files.zip".
See what that 6-pin header is about.... It's only RX, TX, and ground.

Krodal:
Yes, and Yes.
Click "Design Files".
Click "Schematic (PNG)", or use the Eagle files in "geiger_design_files.zip".
See what that 6-pin header is about.... It's only RX, TX, and ground.

brilliant! i really appreciate your time and help! cheers!