TTL to RS232 Adapter Simple Design

During additional time I fabricated quick architecture of TTL to RS232 adapter, that works with my AVR development board. This adapter helps to affix TTL (Transistor-Transistor Logic) akin signals to RS232 interface. TTL ancillary is 9-pin changeable adapter and RS232 afford is macho connector.

Unit is powered from ambition lath application ability pins.

The RS232 TTL adapter circuit:

Step by step design :

AVR_Uart_test :


Compile this affairs with WinAVR ad bake to chip.

Then download Bray’s terminal or added terminal software accessible it and baddest appropriate baud amount and added settings like adequation $.25 and so on. Start terminal and displace the AVR microcontroller:


Stumble This Fav This With Technorati Add To Digg This Add To Reddit Add To Facebook Add To Yahoo