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So, if the DB9 output of the scale was truly RS485 my usb converted should had not worked, right?
I have ordered https://www.ebay.com/itm/MAX232CSE-Transfer-Chip-RS232-To-TTL-Converter-Module-COM-Serial-Board-AD/112071858489?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649 to...
Thank you for your answer.
No, there is no switch to select between RS232 and RS485.
The unit is very old and made by a small company therefore its impossible that i find schematics.
Even if there were dedicated pins for RS232 in the DB9 output of the module, how the RS232 to usb converter...
Hello
I need to connect an electronic scale (designed to weight vehicles) to a PCB with microcontroller that im making.
The scale unit has a DB9 output (serial port) that is labeled RS485.
Thing is that i tried a usb to RS232 cable-converter and it worked fine plus i ordered a module for RS232...
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