Yes but that is a 5V part, you need the low voltage part so you don't fry your Pi.LandyManLuke wrote:Google 'MAX232'.
Logic to RS232 converters are very common.
Sorry the Pins I mean are the ones shown herearewetheredad wrote:The configuration you probably need is:
GND -> GND
TX -> RX
RX -> TX
So try swapping your TX and RX at one end and see if this works (assuming you are just trying to connect to a PC)
I am assuming that the pin numbers you mentioned are not from a DB9 connector on the converter, usually RS232 uses pins 2, 3 and 5 (5 being GND) on a 9 way D type (DB9).
Also check that you have the right driver installed for the converter and are using the correct COM port.
Following http://www.silabs.com/Support%20Documen ... cp2102.pdf it seems to be capable of working with 3.3.Varewetheredad wrote:Further to my last post (really should read things properly before I click post), the amazon link appears to be for a TTL device which would probably not be suitable for connection to the PI due to 5V levels although I have not looked at a data sheet for the device. 5V on the GPIO pins could damage the PI so I would be extremely careful, also the 3.3V on the PI's TX pin probably won't consistently produce a logic 1 on the converter so that could be problematic too.
Of course if you have a datasheet that says this converter will operate at 3.3v, fine but that would either need a reference 3.3v from the PI board or a reg on the converter I would think.
I am trying one of these but with no joy.kghunt wrote:Am I right in assuming the serial interface on the pi is TTL and not RS232?
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