- 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>
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
- robot/README.md: placeholder geometry to measure, the bench-check checklist, and the serial test harness for driving the robot without a remote.
- remote/README.md: wiring, control scheme, stick calibration, and the remote's serial console.
- remote/NEXTION.md: how to build the touchscreen HMI.
- shared/HexapodProtocol/HexapodProtocol.h: the protocol. Change it only by reflashing both boards.