Driving RC servo directly from sbRIO digital IO

[Tpos]

Hi there,

I would like to use an sbRIO board to drive a RC servo.

Usually an RC servo is reading a TTL level pulse width modulated signal.

Timing will be no issue using a sbRIO, for the FPGA can handle this. 

But I am concerned about the output voltage level of the sbRIO digital output; High level it is specified as  being > 2.7V (max 3.3V). This seem to be ok with TTL high level requirement, but I wonder if anybody has already tried this. 

Thanks a lot for any comment you will have about this.

Tony

[BasvanDijke · Accepted solution]

Hi Tony,

http://digital.ni.com/public.nsf/allkb/ACB4BD7550C4374C86256BFB0067A4BD

This is compatible with TTL.

Regards,

Bas

[Tpos]

Thanks for the reference.

In the meanwhile I got the chance to test it and it worked fine. The 3.3 V Digital output in indeed complinat with TTL logic.

Cheers

Tony