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August 26, 2005

La Crosse WS-3600 serial protocol

Sander and Grzegorz managed to understand how the La Crosse WS-36001 weather station communicates over its serial port. They launched the Open3600 project and have a program for Linux and Windows (with source code) that dumps the contents of the memory.

Hat tip to them, it looks like the protocol is quite unorthodox.

Open3600 – Serial communication with the La Crosse WS-3600 weather station

  • dump3600: a program that reads the memory of the WS-3600;
  • Available as source code and binary for Linux and Window. Compiles on Mac OS X 10.4 (but not tested yet);
  • Communicates over the serial port2;
  • Works without requiring the Heavy Weather program or its history.dat file;
  • They now need help with the investigation of the memory map.

1. a.k.a LaCrosse WS3600. 

2. Serial port, COM port, RS232 port, whatever. 

Do not meddle in the affairs of Coding Ninjas, for they are subtle and quick to anger.