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SparkFun will be closed May 25, 2015 for Memorial Day. Orders placed after 2pm on Friday the 22nd will ship out on Tuesday. Thanks!

BrentFinley

Member Since: November 6, 2010

Country: United States

  • Help. I’m trying to talk to a device that expects RS232 io via a MAX232 chip. Do I have to invert the signals so TXD is TXD# and RXD is RXD#?
    I’m testing connectivity to a Scott Edwards Serial LCD backpack and keep getting garbage.
    Is this a TTL signal inversion issue?

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