🔷 GemBot Control

If the position display shows data on the wrong axis (e.g. moving X updates the Y display), remap which incoming Arduino channel updates which display. This handles incorrectly wired limit switches or encoders.

Save your complete GemBot settings (motor remapping, switch routing, nav commands, speed & step size) to a JSON file. Load a saved file to instantly restore any machine's configuration.

🔍 Motion Verification

🎯 Machine State Visualization

• Motor & Switch Remapping — reassign which physical motor each button group (X, Y, P, Index) controls; reverse direction per axis; remap incoming Arduino data channels (pX, pY, pA, pI) to any position display — no firmware change required
• Config File Save / Load — export all settings (motor remapping, switch routing, nav commands, speed, step size, mode) to a .json file; load on any machine for instant restore
• Bug Report / Debug Log Export — capture full session log with system info and submit to the backend or copy to clipboard for support
• Updates & Changelog — this panel
• Fixed stale version stamp (was v2.4.1 / 2025-12-06)

• State Persistence — SAVE STATE / RESET STATE buttons for power-failure recovery
• Comprehensive session logging system (cut time, test time, command & response history)
• X / Y / P axis movement counters for debugging
• Position panel displays speed multiplier, motor mode, and step size in real time

• Fixed X direction button mappings — X LEFT (a) and X RIGHT (d) were reversed; corrected
• Hold-to-move support for all direction buttons in continuous mode
• Immediate STOP command sent on button release / mouse leave (safer motor control)
• Touch screen support (touchstart / touchend) for mobile operation
• Prevents overlapping step sequences with isAnyMotorStepping guard

• Position Synchronization & Status panel — live X / Y / Angle / Index position display
• Arduino position data parsing: pX: pY: pA: pI: serial protocol
• Nextion touch-screen position data parsing: tX: tY: tA: tI:
• Sync / mismatch detection between Arduino and touch-screen data
• Machine state canvas visualization

• Motor Control panel — speed slider (1–5), continuous / step mode toggle, step size slider (1–70)
• Virtual joystick for smooth continuous X/Y/P movement (sends j<X>,<Y>,<Index>,<P>)
• Index axis stepper control — dedicated single-step driver, one step per click
• P-axis rotation controls (CW / CCW)
• Speed and step size commands sent live to Arduino (s<n>, n<n>)
• Webcam & Motion Diagnostics panel — live camera feed, motion detection, per-axis motion verification

• ⚙️ Command Configuration panel — customisable Nextion menu navigation commands (ENTER, LEFT, RIGHT, UP, DOWN) saved to localStorage per machine
• Quick navigation buttons for all Nextion menu items: Settings, Design, Preform, Cut, Polish and all Settings sub-items
• Home button (h) and diagnostic button (x)

• Browser Serial API mode — direct USB connection via Web Serial API (Chrome 89+, Edge 89+, Opera 75+); no server required
• WebSocket Server mode — network bridge via Node.js server; works from any device on the same network
• Serial monitor with colour-coded message types (data, command, info, success, warning, error, debug)
• Emergency Stop — sends STOP (u) command 5× with 50 ms spacing for maximum safety
• Connection diagnostics: port scan, USB VID/PID display, throughput monitoring, line counter
• Settings (mode + server address) saved to localStorage