View Single Post
Old 05-21-2008, 11:00 AM   #159 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location: ÿ
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 269 Times in 212 Posts
I don't know for sure, but typically the chips talk ttl. The extra resistors and transistor and diode make it look like rs232 in that circuit. And with an arduino right there, you can probably just use ttl @ 9600 baud (though you probably have to unhook things to program the duino).

Are you going rx to tx, tx to rx in your connection?
__________________
WINDMILLS DO NOT WORK THAT WAY!!!
  Reply With Quote