v4.1 – talking to ButterBot

• Voice commands and vision reference (in the robot repo): every phrase the robot understands, and the objects and faces its camera recognises.
• Yoda mode: the controller shows the reordered sentences exactly as the robot v4.1 says them (questions and sentences starting with why / if / but stay as they are).
• Flash together with the robot mod v4.1. The protocol did not change.

Download

No ESP-IDF needed – only Python and pip install esptool. Step-by-step: Flash without building.

• ButterBot-OVERKLOKING-v4.1-controller-full.bin – one file, flash at 0x0. Simplest, but erases the controller settings.
• ButterBot-OVERKLOKING-v4.1-controller-parts.zip – keeps settings; flash with @flash_args, instructions in FLASH.txt.
• SHA256SUMS-controller.txt – checksums.

⚠️ Flash with --after no_reset and reset over USB – --after hard_reset (esptool's default) can leave the controller stuck.
Upgrading from v4: only the app changed, so flashing it alone at 0x10000 is enough.