Makerbase MKS LS ESP32 PRO GRBL Controller Laser&CNC Support WIFI Bluetooth Touch Screen Upgrade DLC32 for engraving machine

Overview

The Makerbase MKS LS ESP32 PRO is a next-generation control board for diode laser engravers and light-duty CNC machines. It’s built on the ESP32 dual-core MCU, offering fast processing, Wi-Fi and Bluetooth connectivity, and compatibility with GRBL-ESP32 firmware. Compared to older DLC32 boards, it provides more integrated safety features, higher speed handling, and support for optional offline touch-screen operation.

It’s designed as a drop-in upgrade for hobby laser engravers and small CNCs, especially those using NEMA17 motors, while adding features like remote job control, safety interlocks, and smoother motion.

Key Specifications

• Processor: ESP32 dual-core, 240 MHz
• Connectivity: USB, Wi-Fi, Bluetooth
• Power Input: 12–24 V, up to 10 A
• Stepper Drivers: Integrated TMC2209, quiet operation, max 1.5 A phase current (ideal for NEMA17)
• Axis Support: XYZ plus rotary/roll axis support
• Max Speed Capability: up to 30,000 mm/min (real performance depends on machine mechanics)
• Safety Inputs:
  • Flame sensor input
  • Tilt/gyro sensor input
  • Safety door switch input
  • Laser dwell protection
  • Buzzer alarm output
• Outputs & Control:
  • PWM laser power control
  • Air-assist output
  • Spindle/relay control
  • Limit switch & probe support
• Offline Operation: Compatible with MKS TS35 3.5” touch screen for stand-alone engraving/CNC jobs

Features & Benefits

• Wireless control: Operate via Wi-Fi or Bluetooth without needing a tethered PC.
• Quiet, precise motion: TMC2209 drivers reduce noise and increase step smoothness.
• Safety-focused: Inputs for fire detection, tilt, and door protection add a layer of reliability.
• Broad compatibility: Works with LightBurn, LaserGRBL, and other GRBL-based software.
• Compact design: Integrated drivers simplify wiring and reduce footprint.
• Touchscreen upgrade option: Allows fully offline operation, job previewing, and parameter adjustment.

Use Cases

• Diode Laser Engraving Machines: Perfect for users upgrading low-cost DIY or branded diode engravers to gain wireless control and better safety.
• Light CNC Applications: Suitable for small CNC routers, pen plotters, or drag-knife cutters that don’t require high-current steppers.
• Educational & Maker Projects: Combines modern features with ease of use for labs, classrooms, and hobbyist workshops.

Pros

• ESP32 speed with Wi-Fi/Bluetooth networking
• Integrated TMC2209 drivers = quiet and smooth motion
• Safety inputs uncommon at this price point
• Direct compatibility with LightBurn and GRBL tools
• Expandable with touchscreen for offline jobs

Limitations

• Stepper driver current capped at ~1.5 A → not ideal for larger NEMA23 motors
• Documentation can be fragmented; firmware setup may require tinkering
• "50 W" rating seen in listings is about controller handling, not laser optical output