On 04/07/2013 11:08, Dennis Poon wrote:
thanks. I am not using the fpc email as it seems off topic.
May I know the exact brand and model number of the adapter you used?
I have an ATEN usb-to-serial cable (UC-232A) but I am not sure how to
connect its serial pins to rs-485 's DIFFERENTIAL
On 07/04/2013 12:52 PM, Lukasz Sokol wrote:
For RS485 adaptation, use a MAX232 like chip (to convert +-12 to ttl)
and then a RS485 transceiver chip;
If you want to create hardware anyway, better use a PIC24 (pr PIC32)
chip with USB plus a RS485 tranceiver chip. So you get rid of the ATEN
