RS232 Level Adapter

A simple dongle that combines my (corrected) DB9 connector and MAX232 chip.

fritzing-repo/projects/r/rs232-level-adapter/images/RS232example2_pcb.jpg

Handy when working with microcontrollers like the ATmegas. +5V power is provided throught the SIP connector. If you use the MAX3232 chip (much more expensive) you can run off 3 V and interface to 3V microcontrollers.

By donrob
Created on February 5, 2010, 00:53

Category: Digital

Difficulty: amateurs

License:  Creative Commons Attribution-Noncommercial 3.0 Unported License

Tags: rs232, level-converter, db9, max232, max3232

Files

Fritzing Files

RS232share.fzz

Comments

  1. ssinfod # June 21, 2010, 6:07 a.m.

    Hello, thanks for the components. Anyhow, I think there is a small error in the picture for the schematic. The pin#8 of the MAX232 should be called "R2IN instead of "R1IN". Indeed, there is currenlty two pins with the name "R1IN". (See pin#8 and pin#13) ssinfod

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