[Klug-general] TTL to RS-232 advice

jwmartnet . jwm.art.net at gmail.com
Sat Jan 3 16:35:42 UTC 2015


I want to connect a serial console to my device but need a bit of advice
before purchasing components.

According to the article linked below, I need a ' 3.3V TTL to RS-232 level


Do these converters work bidirectional? Or does it specifically need to be
3.3V TTL to RS-232 and not RS232 to 3.3v TTL?

Anything to avoid?

Probably wishful thinking, but.. I guess TTL to USB wouldn't work without
intervening electronics?

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