Projekt: Seatalk to RS232 converter fwallenwein schreibt This is a small circuit, that converts SeaTalk signal levels to RS232 signal levels. It allows you to connect SeaTalk Instruments to PC or Notebook. click on picture to get a bigger picture This converter - or let's better say levelshifter - does not do any software conversion between the PC and the SeaTalk devices. You need to have a software on your pc, that "speaks" SeaTalk. The circuit it quite easy. The Idea and circuit diagram is from the very good SeaTalk pages of Thomas Knauf. ( Link to Webpage of Thomas Knauf ) I just added another resistor to protect the transistor. Thomas Kanuf also has two small programms on his pages. One for reading SeaTalk and one to writing SeaTalk sentences. I had made a few printed circuit boards for this little gadget. click on picture to get a bigger picture All PCB's are gone. I won't make any new PCB's for this. PCB's are just too expensive for such an easy device. It's just 6 resitors and two transistors. This few parts can easily be mounted on a Stripboard . The PCB would cost something arround 6 Euro. You'l find attached the circuit diagramms, the Eagle files for the PCB and PCB pictures. :

Project Files

Datei	Grösse	Beschreibung
STConverter.brd	11945 Bytes	printed circuit board file for Eagle
STConverter.sch	43396 Bytes	circuit diagramm file for Eagle
STConverterCircuit.jpg	34676 Bytes	circuit diagramm file as JPG picture
STConverterPCB.jpg	79064 Bytes	printed circuit board as JPG picture