Question about CTS pin in FTDI header

Other Hardware 3rd Party Boards
1

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? :slight_smile:

2

No bother you don't need it just ignore.

3

Haha, will do. But I am still curious, any idea what CTS stands for, and when its appropriate to use it?

4

It stands for Clear To send and is part of the many hand shaking lines on the RS232 system.