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Simple TTL to RS232 adapter
Posted by admin on September 12th, 2007
www.scienceprog.com writes:
During spare time I made quick design of TTL to RS232 adapter, that works with my AVR development board. This adapter helps to connect TTL (Transistor-Transistor Logic) level signals to RS232 interface. TTL side is 9-pin female connector and RS232 sire is male connector. Unit is powered from target board using power pins.
Simple TTL to RS232 adapter - [Link]
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September 12th, 2007 at 5:38 pm
[...] I have made simple RS232 adapter I have decided to improve it a little bit and added status LEDs of TXD and RXD lines. This adapter [...]