Setup:
✅ Upload this page to your Wi-Fi module.
✅ Also, upload the obstacle-*.png files.
✅ Open this page from http://your-wi-fi-module's-ip/files/activitybot-btns.html.
✅ Open "ActivityBot Buttons Host.side" with SimpleIDE,
and load the .c program into your Propeller board.
🕮 More info at http://learn.parallax.com/propeller-c-wx-wi-fi