Or use transistors. You can translate the serial levels this way too, look at this as an example: http://www.kmitl.ac.th/~kswichit/ap275/ap275.htm
On Tue, Sep 18, 2012 at 12:36 AM, Azelio Boriani <azelio.bori...@screen.it>wrote: > Yes, and you can even try an USB to serial adapter but with the TTL > output. You can try with a simple inverter (74HC04, 74HC14 but use a > resistor in series between the PC output and the inverter input) as some PC > accept the 0-5V levels. > > > On Tue, Sep 18, 2012 at 12:22 AM, Jim Lux <jim...@earthlink.net> wrote: > >> On 9/17/12 3:00 PM, Azelio Boriani wrote: >> >>> OK, you can test a VP Oncore GPS receiver alone if you have a mean to >>> translate the TTL serial port to a regular RS232 for the PC. This can be >>> done with a MAX232 chip (or equivalent). >>> >> >> There are a ton of these (serial TTL ports) available inexpensively for >> use with Arduinos. In the under $20 range, usually. Try Sparkfun.com for >> instance.. >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.