Specifications:

New in Version 2.60
  • Added a I2C Grove connector that connects to the Raspberry Pi's I2C pins(3.3V only). This makes it very easy to add Grove sensors , inputs or outputs directly to the raspberry Pi.
  • Cleaned up design with embedded Arduino Uno compatible micro-controller (ATMEGA328).
  • The hat can now be programmed directly from the Raspberry Pi. 
  • Pre-loaded with the latest GRBL firmware v1.1.
  • Compatible with other firmware like Firmata for use in robotic / automation projects.
Features:
  • GRBL V1.1 PWM compatible. (Open source firmware that turns G-code commands into stepper signals)
  • 3 Axes (XYZ) + 4th that can clone X/Y/Z 
  • Added circuitry for End-Stop and Probe signal filtering. This eliminates false triggers and makes it possible use non-shielded cable for end-stops/probes.
  • Breakout pins to connect external Stepper Drivers like Gecko Drivers.
  • Uses removable Pololu A4988 compatible stepper drivers. (A4988, DRV8825 and others)
  • Uses removable screw connectors to make it very easy to wire up.
  • End Stop for each Axis and Probe.
  • Variable Speed Spindle / Laser Intensity control (PWM Spindle pin and Direction pin)
  • Coolant control pin. (Extra output pin)
  • Jumpers to set the Micro-Stepping for each stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping )
  • Runs on 12-30V DC. (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
  • Assembled board ready to run.
  • Compatible with Raspberry Pi Models :
    • Raspberry Pi 4
    • Raspberry Pi 3 and B+
    • Raspberry Pi 2 
    • Raspberry Pi B+ (The one with the 40 pin headers.) (It is possible to use the Raspberry Pi Zero but the board will need extra support/spacers.)
Included in standard kit:
  • Assembled Raspberry Pi CNC Hat
  • Green removable screw connectors. (7 in total with each having 4 pins)
  • Copper Mounting Spacers and screws
Variants:
  • Standard Kit as above.
  • Standard Kit + Pre-configured SD Card with CNC software installed.
  • Standard Kit + Add External drivers for hooking up larger stepper drivers.
  • Standard Kit + SD + External Drivers.
Pre-Configured SD has the following software installed:
  • bCNC
  • LaserWeb3
  • CNC.js
  • ChiliPeppr Server
  • Universal GCode Sender
  • Arduino


Not included:
  • Raspberry Pi
  • Stepper Drivers
Extra details and Discussion Forums on our website