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Topic: Question about CTS pin in FTDI header (Read 9833 times) previous topic - next topic

h4t

I'm trying to learn how to connect an FTDI header to an ATMEGA328, but I have a question about the purpose of the CTS pin. The rest of the pins make sense (power, reset, rx/tx, etc), but I'm not sure how to connect the CTS pin to my ATMEGA328.

The project I'm working on also uses a Bluetooth module to provide an alternative method of communication, and it includes a UARTCTS pin. What is this witchery? :)
Creative technologist + OSHW engineer + lover of learning interested in bio+art+tech, form and digital fabrication

Grumpy_Mike

No bother you don't need it just ignore.

h4t

Haha, will do. But I am still curious, any idea what CTS stands for, and when its appropriate to use it?
Creative technologist + OSHW engineer + lover of learning interested in bio+art+tech, form and digital fabrication

Grumpy_Mike

It stands for Clear To send and is part of the many hand shaking lines on the RS232 system.
http://en.wikipedia.org/wiki/Null_modem

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