Files
hexapod-robot/2026-current
mangavalkandClaude Opus 5.5 5ff85c4eb8 Robot: Teensy 3.6 with the old robot's servo wiring and calibration
- LEGACY/Hexapod_Teensy/: old robot sketch (reference only).
- platformio.ini: robot env targets teensy36 (owner-confirmed board).
- Config.h: per-servo SERVOS table (pin, pulse at 0 deg, signed
  us/deg, pulse limits) built from the old sketch's pins, ranges, trims
  and the old Unity servo directions. Rear-left/front-left coxa offsets
  set to 0: the owner re-horns those two servos (the old +-90 left them
  at the end of travel; the sim showed them clamping).
- ServoDriver: 18 servos on hardware PWM (50 Hz, 16-bit); the Teensy 3.6
  Servo library stops at 12.
- Radio on CE 39 / CSN 15 with SPI SCK on pin 14.
- sim: analogWrite/PWM shims, pulses decoded through SERVOS (API v6).
- Docs: CLAUDE.md, READMEs.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-01 15:53:55 +02:00
..

Hexapod

A six-legged walking robot (Teensy 3.6) and its handheld remote (Teensy 4.1 + Nextion touchscreen), linked over nRF24L01.

robot/                     robot firmware: IK, gait, body pose, IMU stabilization, state machine
remote/                    remote firmware: 2 x 3-axis sticks, MPU6050 tilt, Nextion UI, RF24 TX
shared/                    HexapodProtocol: the CmdPacket wire format + radio settings used by both
sim/                       the unchanged robot firmware compiled into a DLL for the simulation
Hexapod_Simulation_Unity/  Unity project that runs that DLL on the 3D model
LEGACY/                    older material kept for reference
scripts/                   PlatformIO helper (per-environment sketch folder)

Build (PlatformIO)

pio run                    # build both
pio run -e robot -t upload
pio run -e remote -t upload
pio device monitor -e robot

Simulation

From the repo root in PowerShell (the dev PC is Windows):

.\sim\build.ps1            # build hexapod_sim.dll + run the headless firmware checks

Then open Hexapod_Simulation_Unity and press Play. See sim/README.md.

Where to go next