This is the 2021 weekly documentation of the development process for the Train Thing. To expand a section, click on the "►" icon left of the annual or monthly title.


  • Simulator version #2 uploaded.
  • Added IO Pi Plus to Raspberry Pi (3)
  • Deleted Raspberry Pi (3A) from the design.
  • Started using the PyCharm IDE for Python.
  • Started installing the semaphore signals.
  • Started developing Laptop software as a tool, although this is phase III