RS232 To TTL Serial Converter

Start Date: Jan 2011
End Date: Feb 2011
Status: Completed

These are indespesable when it comes to debugging serial commuincations (unless you are lucky enough to own an oscilloscope that can decode serial data for you). They are really simple to make as essentially voltage converters that convert RS232 logic levels that computers use (±15V) to ttl logic levels (0 and Vcc) which micro-controllers use. The easiest way to do this is by using a chip such as the MAX232.


  • MAX232 IC
  • 4x 1µF capacitors
  • 1x 10µF capacitor


  • Proto-board
  • 1x 3-pin header strip
  • 1x 4-pin header strip
  • Solder
  • Wire

Total Time

About 2 hours…


Posted: September 6th, 2011 at 6:50 pm
Last Updated on: August 8th, 2012 at 2:36 pm