ON 20050909@4:29:34 PM at page:
http://www.piclist.com/techref/io/serial/ttl-rs232.htm#38027.3021412037
James Newton[JMN-EFP-786] published post 38027.3021412037
http://www.botkin.org/dale/rs232_interface.htm This can
    be done SO much more simply. Don't get hung up on bipolar transistors; this
    is a switching job, thre are better tools. Use two small MOSFETs and two
    resistors and do
    it the easy way! 
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