Engineering Log
ATTACHMENT MCU FIRMWARE
2025-12-28
Good progress on the ESP32 firmware for tool attachments.
Got the OLED display working with a status UI and serial
command interface. LED strip driver is ready but needs a
level shifter (in the mail).
Also consolidated session recording to single files, added
a sessions browser to the fleet UI, and documented the
sensor mast design.BVR0 COMPLETE
2025-12
Base platform engineering prototype finished. 4-wheel
skid-steer rover with Jetson Orin NX, proving out the
mechanical and electrical architecture. bvr1 R&D and
supervised autonomy coming in Artifact residency.
Total build cost: ~$5,000 in parts. Assembly time: ~40 hours.
All designs, firmware, and documentation published to GitHub.