×

SparkFun will be closing early at 3:30 Friday 5/27 and remain closed Monday for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).

Member #6412

Member Since: July 21, 2006

Country: United States

  • No, RS-232 is bipolar, with both negative and positive levels with respect to ground to encode different states of the RS-232 data. The logic levels are unipolar, with positive voltages near 5/3.3/etc. volts for “1” and near zero volts to encode a “0” level.

No public wish lists :(