To connect raspberry pi 3 with RS232 module

[connectororconductor]

Hi, I have a RS232 to TTL Serial Interface Module, I would like to know the steps to connect it to raspberry pi 3. Are there any instructables or series of steps to connect these two.

[drgeoff]

If it is genuinely a "TTL" one then it uses 5 volt logic levels and should not be connected to a RPi as the GPIOs on RPis use 3.3 volt logic levels. RPi GPIO inputs are not 5 volt tolerant and fatality of the complete RPi can result.

Some modules do use 3.3 volt levels.

[klricks]

Hi, I have a RS232 to TTL Serial Interface Module, I would like to know the steps to connect it to raspberry pi 3. Are there any instructables or series of steps to connect these two.

Make sure the chip on the module is MAX3232 and not MAX232. If MAX232 then you will need to add a level shifter circuit between.
Give a link to your module specifications.