TTL singal for trigger in

Projects General Guidance
1

Hi

i want to use arduino uno for sending the TTL signal to microscope Trigger unit.

i wrote a labview code using Linx.

i have seen there are two pins - Rx and Tx.

please suggest me which pin should i use as TTL output.

thanks
uva

2

Why get the Arduino involved? That is silly. Needlessly complex.

Buy a serial-to-TTL converter for your PC and control the microscope directly with LabVIEW.

3

Why use TX or RX; any pin on the Arduino can output a TTL signal. So I guess you first need to give a description of what really needs to happen.

Does the trigger circuit require serial communication?
If so, bidirectional or just a command to the unit (and no reply).
Etc
Etc

4

thanks for your reply. it works now.